JP6251416B2 - Information processing apparatus and traffic jam display method - Google Patents

Description

  Embodiments described herein relate generally to an information processing apparatus and a traffic jam display method.

  A predetermined region or route is divided into a plurality of regions (hereinafter referred to as divided regions), and the color of the portion corresponding to the divided region in the map or route map of the predetermined region is set as the divided region. There is a technique for displaying differently according to the mixed situation of vehicles (for example, smoothness, congestion, traffic jam, etc.).

“Road traffic information Now!”, [Online], July 2000, Japan Road Traffic Information Center, [Search August 24, 2015], Internet <URL: http: //www.jartic .or.jp / ＞ “Traffic Scope”, [online], I Transport Lab, Inc. [searched on August 24, 2015], Internet <URL: http://www.i-transportlab.jp/trafficscope/index.html >

  However, in the above technique, it is possible to grasp which area is divided in the area or route by the color difference in the map or route map, but the vehicle travels in which direction in the divided area. It is not possible to grasp whether the vehicle to be crowded.

  The information processing apparatus according to the embodiment includes a specifying unit and a display control unit. The specifying unit, based on the speed and traveling direction of the vehicle traveling in the predetermined area, for each of a plurality of direction candidates, the inner product of the vehicle speed vectors that match the direction candidates, and the direction of travel coincides with the direction candidates. The traffic speed of the vehicle in the traveling direction that matches each direction candidate or the traffic volume of the vehicle in the traveling direction that matches each direction candidate is calculated as the traffic direction evaluation value, and the calculated traffic direction evaluation value Based on this, a direction candidate representative of the traveling direction of the vehicle in the traffic jam occurring in the predetermined area is specified as the traffic jam direction. The display control unit displays a map or route map corresponding to the predetermined area on the display unit, including direction information that makes it possible to identify the traffic jam direction.

FIG. 1 is a diagram illustrating an example of a configuration of a traffic jam display system according to the first embodiment. FIG. 2A is a block diagram illustrating an example of a functional configuration of a traffic information creation device included in the traffic jam display system according to the first embodiment. FIG. 2B is a diagram for explaining an example of direction candidates in the traffic jam display system according to the first embodiment. FIG. 3 is a flowchart illustrating an example of a flow of processing for setting a calculation area and a display condition in the traffic jam display system according to the first embodiment. FIG. 4 is a diagram for explaining an example of a calculation area setting method in the traffic jam display system according to the first embodiment. FIG. 5A is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the first embodiment. FIG. 5B is a diagram illustrating an example of the relationship between the vehicle density and the inter-vehicle distance calculated in the traffic jam display system according to the first embodiment. FIG. 6A is a diagram for explaining an example of a change in the display mode of direction information in the traffic jam display system according to the first embodiment. FIG. 6B is a diagram for explaining an example of changing the display mode of the direction information in the traffic jam display system according to the first embodiment. FIG. 6C is a diagram for explaining an example of a change in the display mode of direction information in the traffic jam display system according to the first embodiment. FIG. 6D is a diagram for explaining an example of a change in the display mode of the direction information in the traffic jam display system according to the first embodiment. FIG. 7 is a diagram illustrating a display example of direction information with respect to a map in the traffic jam display system according to the first embodiment. FIG. 8 is a diagram illustrating a display example of direction information with respect to a map in the traffic jam display system according to the first embodiment. FIG. 9 is a block diagram illustrating an example of a functional configuration of the traffic information creation device included in the traffic jam display system according to the second embodiment. FIG. 10 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the second embodiment. FIG. 11 is a diagram for explaining an example of a traffic jam direction specifying process in the traffic jam display system according to the second embodiment. FIG. 12 is a block diagram illustrating an example of a functional configuration of a traffic information creation device included in the traffic jam display system according to the third embodiment. FIG. 13 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the third embodiment. FIG. 14 is a diagram for explaining an example of a traffic jam direction specifying process in the traffic jam display system according to the third embodiment. FIG. 15: is a block diagram which shows an example of a function structure of the traffic information production apparatus which the traffic congestion display system concerning 4th Embodiment has. FIG. 16 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the fourth embodiment. FIG. 17: is a block diagram which shows an example of a function structure of the traffic information production apparatus of the traffic congestion display system concerning 5th Embodiment. FIG. 18 is a flowchart illustrating an example of a flow of processing for setting calculation sections and display conditions in the traffic jam display system according to the fifth embodiment. FIG. 19 is a diagram for explaining an example of a calculation section setting method in the traffic jam display system according to the fifth embodiment. FIG. 20 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the fifth embodiment. FIG. 21 is a diagram illustrating a display example of direction information with respect to a route map in the traffic jam display system according to the fifth embodiment. FIG. 22 is a diagram illustrating a display example of direction information with respect to a route map in the traffic jam display system according to the fifth embodiment.

  Hereinafter, a traffic jam display system to which an information processing apparatus and a traffic jam display method according to the present embodiment are applied will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a diagram illustrating an example of a configuration of a traffic jam display system according to the first embodiment. As shown in FIG. 1, the traffic jam display system according to the present embodiment is a traffic information creation device 1 (information) that creates traffic information related to vehicle traffic in a preset area (hereinafter referred to as display target area A). An example of a processing device), a display device 2 (an example of a display unit) provided in a traffic control room or the like and capable of displaying traffic information and the like created by the traffic information creation device 1, a tracan data acquisition device 5, and a probe And an information acquisition device 6.

  The probe information acquisition device 6 receives image information and other vehicle information (so-called probe information) collected from the vehicle-mounted device 4 mounted on the vehicle. Here, the vehicle information is information relating to a vehicle on which the vehicle-mounted device 4 is mounted. In the present embodiment, the vehicle information is information indicating the position of the vehicle, the traveling direction of the vehicle, and the speed of the vehicle. The tracan data acquisition device 5 generates vehicle detection information based on the detection result of the vehicle detector 3 (so-called traffic counter) provided on the roadside of the road. Here, the vehicle detection information is information related to a vehicle detection result by the vehicle detector 3. In the present embodiment, the vehicle detection information includes the speed of the vehicle that has passed the installation position of the vehicle detector 3, the traveling direction of the vehicle, the number of the vehicles, a vehicle parked on the road in the vicinity of the vehicle detector 3, and a public vehicle. This is information indicating the result of sensing a vehicle traveling illegally on a dedicated lane. Further, the probe information acquisition device 6 receives road surface information from the patrol car 7. Here, the road surface information is information relating to the road on which the patrol car 7 has traveled. In the present embodiment, the road surface information is information indicating a falling object existing on the road on which the patrol car 7 travels and information indicating the position of the patrol car 7.

  Further, the traffic information creation device 1 is based on vehicle information acquired by the probe information acquisition device 6, vehicle detection information acquired by the tracan data acquisition device 5, road surface information acquired by the probe information acquisition device 6, and the like. The traffic situation is grasped, and information related to the traffic jam in the display target area A is included in the map M. Then, the traffic information creation device 1 transmits the map M as traffic information to the display device 2 and displays the map M on the display device 2. The display device 2 provides the traffic information to the user by displaying the map M received from the traffic information creation device 1.

  FIG. 2A is a block diagram illustrating an example of a functional configuration of a traffic information creation device included in the traffic jam display system according to the first embodiment.

  As illustrated in FIG. 2A, the traffic information creation device 1 includes a display area setting unit 101, a vector processing unit 102, and a display data processing unit 103. The display area setting unit 101 (an example of a setting unit) sets a display target area A for displaying the map M. In the present embodiment, the display area setting unit 101 includes a calculation area setting unit 101a and a display condition setting unit 101b.

The calculation area setting unit 101a sets the area designated via the operation unit (not shown) included in the traffic information creation device 1 as the display target area A. Then, the calculation area setting unit 101a divides the display target area A into a plurality of divided areas (an example of a predetermined area), and sets the divided areas as calculation areas a _i . Here, i is a number for identifying a calculation area, and is an integer of 1 or more. The display condition setting unit 101b sets traffic information display conditions on the display device 2.

The vector processing unit 102 acquires vehicle information indicating the calculation area a _i as the position of the vehicle from the probe information acquisition device 6. Next, the vector processing unit 102 (an example of the specifying unit) sets in advance based on the speed and traveling direction of the vehicle indicated by the acquired vehicle information (that is, the speed and traveling direction of the vehicle traveling in the computation area a _i ). Among the plurality of direction candidates (hereinafter referred to as direction candidates), a direction candidate representing the traveling direction of the vehicle in the traffic jam occurring in the calculation area a _i is specified as the traffic jam direction (an example of the first direction) ( select. In the present embodiment, the vector processing unit 102 includes an individual vehicle vector calculation processing unit 102a and an area vector calculation processing unit 102b.

The individual vehicle vector calculation processing unit 102a obtains a vector of each vehicle (hereinafter referred to as a speed vector) based on the speed and traveling direction of each vehicle traveling in the calculation area _ai . For each of a plurality of direction candidates, the area vector calculation processing unit 102b calculates, as a traffic jam direction evaluation value, an inner product of speed vectors that match the direction candidates among the speed vectors of the vehicles traveling in the calculation area a _i . To do. Here, the traffic jam direction evaluation value is a value for determining whether or not the direction candidate is in the direction in which the traffic jam of the vehicle occurs in the calculation area a _i . The reason why the inner product of the velocity vectors matching the direction candidate is obtained is that the inner product of velocity vectors whose traveling directions are different by 180 ° C. and the same velocity is zero. Then, the area vector calculation processing unit 102b specifies the congestion direction of the calculation area a _i based on the inner product of the speed vectors calculated as the congestion direction evaluation value for each direction candidate.

FIG. 2B is a diagram for explaining an example of direction candidates in the traffic jam display system according to the first embodiment. As shown in FIG. 2B, the area vector calculation processing unit 102b includes north N (D ₁ ), northeast NE (D ₂ ), east E (D ₃ ), southeast SE (D ₄ ), south S (D ₅ ), Each of the eight directions of southwest SW (D ₆ ), west W (D ₇ ), and northwest NW (D ₈ ) is set as a direction candidate. Then, the area vector calculation processing unit 102b uses a velocity vector within a predetermined angle θ (for example, π / 4) with each direction candidate as a reference, and a velocity vector that matches the direction candidate as a reference within the predetermined angle θ. Calculate the dot product of velocity vectors.

For example, as shown in FIG. 2B, the area vector calculation processing unit 102b travels in the calculation area a _i when calculating the inner product of the velocity vectors matching the north N (D ₁ ) as shown in FIG. 2B. Of the vehicle speed vectors, the inner product of the speed vectors whose traveling direction is in the range of 3π / 8 <θ ≦ 5π / 8 is calculated. Similarly, the inner product of the velocity vectors is calculated for the other direction candidates D _{2 to} D ₈ (northeast NE, east E, southeast SE, south S, southwest SW, west W, and northwest NW).

The display data processing unit 103 displays the map M of the display target area A on the display device 2. Specifically, the display data processing unit 103 (an example of the display control unit) uses the vector processing unit 102 to generate a partial area m (an example of a map) corresponding to the calculation area a _i in the map M of the display target area A. The information is displayed on the display device 2 including direction information (an example of first information) that enables the identified traffic jam direction to be identified. As a result, it is possible to grasp in which direction the vehicle traveling in the partial area m is congested, so that the fluidity of traffic in a wide range such as the city level can be visualized. In addition, since it is not necessary to grasp the congestion situation of each road, road development is progressing rapidly, and it is possible to visualize the fluidity of traffic in emerging countries where the map of each road is not catching up. it can.

  In the present embodiment, the display data processing unit 103 includes a display condition calculation processing unit 103a and a display processing unit 103b. The display condition calculation processing unit 103a changes the display mode of the direction information included in the partial area m based on the display condition set by the display condition setting unit 101b. The display processing unit 103b creates a map M in which the direction information whose display mode has been changed is included in the partial area m, and displays the map M on the display device 2.

Next, the calculation area a _i and display condition setting processing in the traffic jam display system according to the present embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a flowchart illustrating an example of a flow of processing for setting a calculation area and a display condition in the traffic jam display system according to the first embodiment. FIG. 4 is a diagram for explaining an example of a calculation area setting method in the traffic jam display system according to the first embodiment.

As shown in FIG. 3, after setting the display target area A, the calculation area setting unit 101 a divides the display target area A into a plurality of divided areas (for example, four divided areas), and The calculation area a _i is set (step S301). In the present embodiment, the calculation area setting unit 101a divides the display target area A into calculation areas a _i having a preset size. As shown in FIG. 4, for example, the calculation area setting unit 101a divides the display target area A into rectangular calculation areas a _i having a preset size. Here, the calculation area a _i is a divided region having a length L1 in the left-right direction and a length L2 in the vertical direction.

In addition, the calculation area setting unit 101a sets a direction candidate _Dx that is specified as a traffic jam direction in the calculation area _ai . Here, x is a number for identifying a direction candidate and is an integer of 1 or more. As shown in FIG. 4, for example, calculating the area setting unit 101a, based on the center C of the calculation area _{a i,} a direction candidate _{D 1} toward the north N, and direction candidate _{D 2} toward the northeast NE, E E Direction candidate D ₃ toward direction, direction candidate D ₄ toward southeast SE, direction candidate D ₅ toward south S, direction candidate D ₆ toward southwest SW, direction candidate D ₇ toward west W, and northwest NW a direction candidate _{D 8} toward the set direction candidate _{D x.} In the present embodiment, the calculation area setting unit 101a sets eight direction candidates D _{x (1} to ₈₎ , but a plurality of direction candidates D _x may be set. For example, the direction candidate D ₁ and the direction candidate candidate D ₅ only may be set.

Next, the display condition setting unit 101b sets a display condition for the direction information included in the map M of the display target area A (step S302). In the present embodiment, the display condition setting section 101b is used to determine the display mode of the direction information, speed reference value V _B, sets the traffic amount reference value Q _B, and a density reference value K _B as a display condition. Here, the speed reference value V _B is an average speed of the vehicle used for determining the degree of congestion of the vehicle in the calculation area a _i . The traffic volume reference value Q _B is the traffic volume of the vehicle used for determining the degree of congestion of the vehicle in the calculation area a _i . Here, the traffic volume is the number of vehicles that have traveled in the calculation area a _i within a unit time. Density reference value K _B, the density of the vehicle used to determine the congestion degree of the vehicle in the calculation area a _i (hereinafter, vehicle density referred to). Here, the vehicle density is the number of vehicles existing within a unit distance.

  Next, the direction information display processing in the traffic jam display system according to the first embodiment will be described with reference to FIGS. 5A and 5B. FIG. 5A is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the first embodiment. FIG. 5B is a diagram illustrating an example of the relationship between the vehicle density and the inter-vehicle distance calculated in the traffic jam display system according to the first embodiment. In FIG. 5B, the vertical axis represents the vehicle density [vehicles / m], and the horizontal axis represents the inter-vehicle distance [m].

First, the calculation area setting unit 101a divides the display target area A into a plurality of divided areas (step S501), and sets each of the plurality of divided areas as the calculation area a _i (step S501), similarly to step S301 in FIG. S502).

Individual vehicle vector processing unit 102a among the plurality of operation areas _{a i,} first, set in the area to identify the congestion direction calculation area _{a 1} (step S503). Next, the individual vehicle vector calculation processing unit 102 a acquires vehicle information indicating a position in the calculation area a ₁ from the probe information acquisition device 6. Furthermore, the individual vehicle vector processing unit 102a, for each vehicle in the calculation area a _1, based on the speed and the traveling direction of the vehicle indicated by the acquired vehicle information, determining the velocity vector of each vehicle (step S504).

Then, the area vector operation processing unit 102b, for each of a plurality of directions candidate D _x, calculates the inner product of the velocity vector of the traveling direction of the vehicle coincides with the direction candidate D _x as congestion direction evaluation value (step S505). Here, the traveling direction coincides with the direction candidate D _x, in addition to the traveling direction coincides with the direction candidate D _x, relative to the direction candidate D _x, including the traveling direction of the range of a predetermined angle theta. Then, the area vector calculation processing unit 102b identifies, as a traffic jam direction, a direction candidate D _x whose inner product calculated as a traffic jam direction evaluation value is larger than a predetermined value among the plurality of direction candidates D _x (step S506). The predetermined value is a preset value, a value that determines the traveling direction of the vehicle coincides with the direction candidate D _x is congested.

Next, the display condition calculation processing unit 103a sets the average speed of the vehicle whose traffic direction is the traveling direction, the traffic volume of the vehicle, or the vehicle density of the vehicle as a reference value (speed reference value V _B , traffic volume criterion). Compared with the value Q _B and the density reference value K _B ) (step S507), the degree of traffic jam in each traffic jam direction (hereinafter referred to as traffic jam level) is obtained. That is, the display condition calculation processing unit 103a obtains the degree of traffic jam in the traffic jam direction based on the average speed of the vehicle whose traffic direction is the traffic direction, the traffic volume of the vehicle, or the vehicle density of the vehicle. In the present embodiment, the display condition calculation processing unit 103a calculates the vehicle density of a vehicle whose traffic direction is the traveling direction using the following equation (1).
Vehicle density (vehicles / km) = 1.0 [km] / (distance between vehicles [km] + average vehicle length [km]) (1)
The inter-vehicle distance is a distance (so-called inter-vehicle distance) from selection of a vehicle (so-called probe vehicle) on which the vehicle-mounted device 4 is mounted to a front end of a preceding vehicle traveling in front of the probe vehicle. The average vehicle length is the average of the vehicle lengths of the probe vehicles.

  In the present embodiment, the display condition calculation processing unit 103a obtains “congestion”, “congestion”, and “smooth” as the congestion degree in the congestion direction. “Congestion” is the highest degree of congestion. “Congestion” is the next highest congestion degree after “congestion”. “Good” is the lowest congestion level. In the present embodiment, the display condition calculation processing unit 103a sets any one of the three levels of congestion, “congested”, “congested”, and “smooth” as the degree of congestion in each direction of congestion. The present invention is not limited to this as long as one of a plurality of congestion levels is set as the congestion level for each direction. For example, the display condition calculation processing unit 103a may set one of two levels of congestion, “congestion” and “free flow”, as the congestion degree in each congestion direction. Alternatively, the display condition calculation processing unit 103a may set one of three or more levels of congestion as the degree of congestion in each direction of congestion.

For example, the display condition calculation processing unit 103a increases the degree of congestion as the average speed of the vehicle having the direction of congestion as the traveling direction in the calculation area a _i decreases. Specifically, when the average speed of the vehicle whose traveling direction is the traffic jam direction in the calculation area a _i is slower than the speed reference value V _B , the display condition calculation processing unit 103a sets the traffic jam degree in the traffic jam direction as “traffic jam”. to decide. In addition, when the average speed of the vehicle whose traffic direction is the traveling direction matches the speed reference value V _B in the calculation area a _i , the display condition calculation processing unit 103a determines that the congestion level in the traffic direction is “congested”. . Further, the display condition processing unit 103a, the average speed of the vehicle to the traffic congestion direction to the traveling direction in the operation area a _i be faster than the speed reference value V _B, the congestion direction of congestion level is determined as "successful."

Or, display condition processing unit 103a in accordance with the traffic amount of the vehicle (the number of vehicles that travel in calculation area a _i per unit time) is increased to the traveling direction of congested direction in the operation area a _i, congestion degree To increase. Specifically, the display condition calculation processing section 103a, the operation area a traffic volume of the vehicle to the traveling direction of congested direction in _i (of a vehicle traveling in calculation area a _i per unit time quantity) of the traffic volume based If greater than the value Q _B, the congestion direction of congestion level is determined as "congested". The display condition processing unit 103a, if the traffic volume of vehicle congestion direction to the traveling direction in the operation area a _i matches the traffic volume reference value Q _B, the congestion direction congestion degree of "light congestion" determination To do. Further, the display condition processing unit 103a, the traffic amount of the vehicle to the traveling direction of congested direction in the operation area a _i be less than the traffic amount reference value Q _B, determines the congestion direction congestion degree of "smooth" .

Alternatively, the display condition calculation processing unit 103a increases the degree of congestion as the vehicle density (the number of vehicles per unit distance) of the vehicle whose traveling direction is the congestion direction in the calculation area _ai increases. Specifically, the display condition processing unit 103a, when the vehicle density of vehicles congestion direction to the traveling direction in the operation area a _i (number of vehicles per unit distance) is higher than the density reference value K _B, the congestion Judge the direction of traffic jam as “Junk”. The display condition processing unit 103a, when the vehicle density of vehicles congestion direction to the traveling direction in the operation area a _i matches the density reference value K _B, determines the congestion direction congestion degree of "light congestion" . Further, the display condition processing unit 103a, a vehicle density of vehicles congestion direction to the traveling direction in the operation area a _i is lower than the density reference value K _B, the congestion direction of congestion level is determined as "successful."

  In general, as shown in FIG. 5B, as the degree of traffic congestion of the vehicle increases, the inter-vehicle distance decreases and the vehicle density increases. On the other hand, as shown in FIG. 5B, as the degree of traffic congestion of the vehicle decreases, the inter-vehicle distance increases and the vehicle density decreases. Therefore, the display condition calculation processing unit 103a calculates the vehicle density according to the above equation (1), and increases the degree of congestion as the vehicle density increases.

The display processing unit 103 b displays the map M of the display target area A on the display device 2. In the present embodiment, the display processing unit 103b of the map M of the display target area A, including the direction information to the partial region m which corresponds to the operation area a ₁ of traffic congestion direction is identified. In this embodiment, the direction information is an arrow d indicating the traffic jam direction, but is not limited to this as long as the traffic traffic direction can be identified. good.

At that time, the display processing unit 103b, in accordance with the congestion direction of the congestion level, changes the display mode of the direction information to be displayed on the operation area a ₁ (step S508). Thereby, it is possible to easily grasp which traffic jam direction is congested among the direction information displayed in the partial area m. The individual vehicle vector calculation processing unit 102a determines whether or not the traffic jam direction has been specified for all the calculation areas a _i (step S509). When the traffic jam direction is not specified for all the calculation areas a _i (step S509: No), the individual vehicle vector calculation processing unit 102a increments the number i of the calculation area a _i for specifying the traffic jam direction (step S510). ), The process returns to step S504. On the other hand, when the traffic jam direction is specified for all the calculation areas a _i (step S509: Yes), the direction information display process is terminated.

  Next, processing for changing the display mode of the direction information in the traffic jam display system according to the present embodiment will be described with reference to FIGS. 4 and 6A to 6D. 6A to 6D are diagrams for explaining an example of changing the display mode of the direction information in the traffic jam display system according to the first embodiment.

In the present embodiment, the display processing unit 103b changes the color of the direction information according to the congestion degree in the congestion direction. Specifically, when the direction candidates D1 to _D8 shown in FIG. 4 are specified as the traffic jam direction and the traffic jam degree of the direction candidates D ₁ , D ₄ and D ₆ among the direction candidates D _{1 to 8} is “traffic jam” As shown in FIG. 6A, the display processing unit 103b changes the colors of the arrows d ₁ , d ₄ , and d ₆ representing the direction candidates D ₁ , D ₄ , and D ₆ to red. When the congestion degree of the direction candidates D ₂ , D ₅ , and D ₈ among the direction candidates D _{1 to 8} is “congested”, the display processing unit 103b, as shown in FIG. 6A, the direction candidates D ₂ , D ₅ , The color of arrows d ₂ , d ₅ , d ₈ representing D ₈ is changed to yellow. Furthermore, when the congestion degree of the direction candidates D ₃ and D ₇ among the direction candidates D _{1 to 8} is “smooth”, the display processing unit 103b represents the direction candidates D ₃ and D ₇ as illustrated in FIG. 6A. The color of the arrows d ₃ and d ₇ is changed to green. In this embodiment, the display processing unit 103b displays the color of the direction information in three colors according to the three levels of congestion in the direction of congestion. If it can be set at any one of the above steps, the color of the direction information can also be displayed in three or more colors.

Further, the direction candidates D ₁ , D ₃ , D ₅ , and D ₇ shown in FIG. 4 are specified as the congestion direction, and the congestion degree of the direction candidate D ₃ among the direction candidates D ₁ , D ₃ , D ₅ , and D ₇ is “ If it is congested ", the display processing unit 103b, as shown in FIG. 6B, the color of the arrow _{d 10} indicating a direction candidate _{D 3} in red. If the direction candidates _{D 1, D 3, D 5} , congestion degree direction candidate _{D 7} of _{D 7} are "busy", the display processing unit 103b, as shown in FIG. 6B, represents the direction candidate _{D 7} arrow d _Make the color of ₁₂ yellow. Further, when the congestion degree of the direction candidates D ₅ and D ₁ among the direction candidates D ₁ , D ₃ , D ₅ , and D ₇ is “smooth”, the display processing unit 103b, as shown in FIG. The colors of the arrows d ₁₁ and d ₉ representing D ₅ and D ₁ are green.

Also, if the congestion degree direction candidate D ₅ are identified as congestion direction and direction candidate D ₅ shown in FIG. 4 is "crowded", the display processing unit 103b, as shown in FIG. 6C, except the direction candidate D ₅ of the hides arrows representing the direction candidate D _x, inclusion of arrow d ₁₃ indicating a direction candidate D ₅ in the map M of the display target area a. On the other hand, if the congestion degree direction candidate D ₇ is identified as a congestion direction and direction candidate D ₇ shown in FIG. 4 is "congested", the display processing unit 103b, as shown in FIG. 6C, except the direction candidate D ₇ of the hides arrows representing the direction candidate D _x, inclusion of arrow d ₁₄ indicating a direction candidate D ₇ on the map M of the display target area a. As illustrated in FIG. 6C, the display processing unit 103b may change the color of the arrows d13 and ₁₄ to a color (for example, red) according to the degree of congestion.

Or in this embodiment, the display process part 103b changes the magnitude | size of direction information according to the congestion degree of a congestion direction. Specifically, when the congestion degree direction candidates D ₁ is identified as a congestion direction and direction candidates D ₁ of the direction candidates D _{1 to 8} shown in FIG. 4 is "congested", the display processing unit 103b, FIG. as shown in 6D, and hides the arrows representing the direction candidate D _x other than the direction candidates D _1, inclusion of arrow d ₁₅ indicating a direction candidates D ₁ on a map M. If congestion degree direction candidate D ₇ is identified as a congestion direction and direction candidate D ₇ of direction candidates D _{1 to 8} shown in FIG. 4 is "crowded", the display processing unit 103b, as shown in FIG. 6D The arrow representing the direction candidate D _x other than the direction candidate D ₇ is not displayed, and the arrow d ₁₆ representing the direction candidate D ₇ is included in the map M. At that time, the display processing unit 103b, as shown in FIG. 6D, the size of the arrow d ₁₅ that congestion degree indicates the direction candidates D ₁ which is determined as "congested", the congestion level is determined as "busy" larger than the size of the arrow _{d 16} indicating a direction candidate _{D 7.} That is, the display processing unit 103b, a direction information representing the direction candidate D _x identified as congested direction (e.g., arrows) the size of, increasing according to the congestion degree of the direction candidate is high.

  Next, a display example of direction information for the map M in the traffic jam display system according to the present embodiment will be described with reference to FIG. FIG. 7 is a diagram illustrating a display example of direction information with respect to a map in the traffic jam display system according to the first embodiment.

As shown in FIG. 7, the display processing unit 103b of the partial region m of the map M of the display target area A, congestion direction from a plurality of directions candidate D _x is selected and the congestion level is "congested" or "crowded The arrow d is superimposed and displayed on the partial area m corresponding to the calculation area a _i determined as “. Further, the display processing unit 103b, as shown in FIG. 7, among the partial region m corresponding to the operation area a _i that is congested direction is identified, the portion of the calculation area a _i that congestion level is determined as "congested" A red arrow d is included for the area m. On the other hand, as shown in FIG. 7, the display processing unit 103b of the partial region m corresponding to the operation area a _i that is congested direction is identified, the portion of the calculation area a _i that congestion level is determined as "busy" Include a yellow arrow d for region m.

  FIG. 8 is a diagram illustrating a display example of direction information with respect to a map in the traffic jam display system according to the first embodiment. FIG. 8 is an example in which the size and thickness of the arrow d are changed in addition to the change of the color of the arrow d in accordance with the degree of traffic jam in the traffic jam direction.

For example, as illustrated in FIG. 8, the display processing unit 103 b corresponds to the calculation area a _i in which the traffic jam direction is specified from the plurality of direction candidates D _x in the partial area m in the map M of the display target area A. An arrow d is superimposed on the partial area m and displayed. Further, the display processing unit 103b, as shown in FIG. 8, among the partial region m corresponding to the operation area a _i congestion direction is selected, part of the calculation area a _i that congestion level is determined as "congested" The maximum size arrow d is included for the region m. At this time, the display processing unit 103b may set the color of the arrow d having the maximum size to red. On the other hand, the display processing unit 103b, as shown in FIG. 8, among the partial region m corresponding to the operation area a _i congestion direction is selected, part of the calculation area a _i that congestion level is determined as "busy" An arrow d having a size smaller than the maximum size is included for the region m. At that time, the display processing unit 103b may set the color of the arrow d smaller than the maximum size to yellow.

  As described above, according to the traffic jam display system according to the first embodiment, it is possible to grasp in which direction the vehicle traveling in the partial area m is congested. The fluidity of traffic can be visualized.

(Second Embodiment)
In the present embodiment, for each of a plurality of direction candidates, the average speed of a vehicle whose traveling direction matches the direction candidate is calculated as a congestion direction evaluation value based on the speed and traveling direction of each vehicle traveling in the calculation area. This is an example. In the following description, description of the same parts as those in the first embodiment is omitted.

  FIG. 9 is a block diagram illustrating an example of a functional configuration of the traffic information creation device included in the traffic jam display system according to the second embodiment. As illustrated in FIG. 9, the traffic information creation device 900 includes a display area setting unit 101, a speed processing unit 901, and a display data processing unit 103.

Speed processor 901 (an example of a specific section), based on the speed and the traveling direction of the vehicles traveling within the calculation area a _i, among a plurality of directions candidates previously set, in the congestion generated by the calculation area a _i A direction candidate representing the traveling direction of the vehicle is specified (selected) as a traffic jam direction. In the present embodiment, the speed processing unit 901 includes an individual vehicle vector calculation processing unit 102a and an average speed calculation processing unit 901b.

The average speed calculation processing unit 901b, for each of a plurality of direction candidates, based on the speed and the traveling direction of each vehicle traveling in the calculation area a _i , calculates the average speed of the vehicle whose traveling direction matches the direction candidate. Calculated as a traffic direction evaluation value. In addition, the average speed calculation processing unit 901b specifies the traffic jam direction of the calculation area a _i based on the average speed calculated for each direction candidate.

  Next, the direction information display processing in the traffic jam display system according to the second embodiment will be described with reference to FIGS. 10 and 11. FIG. 10 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the second embodiment. FIG. 11 is a diagram for explaining an example of a traffic jam direction specifying process in the traffic jam display system according to the second embodiment.

The average speed calculation processing unit 901b, based on the velocity vector of each vehicle traveling calculated by the individual vehicle vector operation unit 102a operational area a ₁ (speed and direction of travel), for each of the plurality of directions candidate D _x, It calculates the average speed of the traveling direction of the vehicle coincides with the direction candidate D _x as congestion direction evaluation value (step S1001). Then, the average speed calculation processing unit 901b identifies, as a traffic jam direction, a direction candidate D _x whose average speed calculated as a traffic jam direction evaluation value is lower than a predetermined speed (for example, 30 km / h) among the plurality of direction candidates D _x. (Step S1002).

For example, as illustrated in FIG. 11, the average speed calculation processing unit 901b performs the direction candidates D ₁ , D ₃ , D ₅ , and D ₇ (north N, east E, south S, west W) of the calculation area a _1. When the average speed at the current time (for example, 10:05) is calculated, the direction candidate D ₇ (west W) whose average speed is slower than the predetermined speed (for example, 30 km / h) is specified as the traffic jam direction.

As described above, according to the traffic jam display system according to the second embodiment, even when the average speed of the vehicle traveling in the calculation area a _i is used as the traffic jam direction evaluation value, the same as in the first embodiment. An effect can be obtained.

(Third embodiment)
In the present embodiment, for each of a plurality of direction candidates, the vehicle density of a vehicle in the traveling direction that matches each direction candidate is calculated as a traffic jam direction evaluation value based on the speed and the traveling direction of each vehicle traveling in the calculation area. This is an example. In the following description, description of the same parts as those in the first embodiment is omitted.

  FIG. 12 is a block diagram illustrating an example of a functional configuration of a traffic information creation device included in the traffic jam display system according to the third embodiment. As illustrated in FIG. 12, the traffic information creation device 1200 includes a display area setting unit 101, a vehicle density processing unit 1201, and a display data processing unit 103.

Vehicle density processing unit 1201 (one example of a specific section), based on the speed and the traveling direction of the vehicles traveling within the calculation area a _i, among a plurality of directions candidates previously set, generated in the operation area a _i congestion A direction candidate representing the traveling direction of the vehicle is specified (selected) as a traffic jam direction. In the present embodiment, the vehicle density processing unit 1201 includes an individual vehicle vector calculation processing unit 102a and a vehicle density calculation processing unit 1201b.

The vehicle density calculation processing unit 1201b, for each of a plurality of direction candidates, based on the speed and the traveling direction of each vehicle traveling in the calculation area a _i , Calculated as a traffic direction evaluation value. Further, the vehicle density calculation processing unit 1201b specifies the traffic jam direction of the calculation area a _i based on the vehicle density calculated for each direction candidate.

  Next, the direction information display processing in the traffic jam display system according to the third embodiment will be described with reference to FIGS. 13 and 14.

  FIG. 13 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the third embodiment. FIG. 14 is a diagram for explaining an example of a traffic jam direction specifying process in the traffic jam display system according to the third embodiment.

Vehicle density processing section 1201b, based on the velocity vector of each vehicle traveling calculated by the individual vehicle vector operation unit 102a operational area a ₁ (speed and direction of travel), for each of the plurality of directions candidate D _x, calculating a density of vehicles traveling direction of the vehicle coincides with the direction candidate D _x as congestion direction evaluation value (step S1311). The vehicle density processing section 1201b, among the plurality of directions candidate D _x, calculated vehicle density predetermined vehicle density as congestion direction evaluation value (e.g., 30 units / miles) jam direction higher direction candidate D _x (Step S1312).

For example, as shown in FIG. 14, the vehicle density calculation processing unit 1201b performs the direction candidates D ₁ , D ₃ , D ₅ , and D ₇ (north N, east E, south S, west W) of the calculation area a _1. When the vehicle density at the current time (for example, 10:05) is calculated, direction candidates D ₃ and D ₇ (east E, west W) where the vehicle density is higher than a predetermined vehicle density (for example, 30 cars / km) Is specified as a traffic jam direction.

As described above, according to the traffic jam display system according to the third embodiment, even when the vehicle density of a vehicle traveling in the calculation area a _i is used as the traffic jam direction evaluation value, the same as in the first embodiment. An effect can be obtained.

(Fourth embodiment)
In the present embodiment, for each of a plurality of direction candidates, the traffic volume of the vehicle in the traveling direction that matches each direction candidate is calculated as a traffic jam direction evaluation value based on the speed and the traveling direction of each vehicle traveling in the calculation area. This is an example. In the following description, description of the same parts as those in the first embodiment is omitted.

  FIG. 15: is a block diagram which shows an example of a function structure of the traffic information production apparatus which the traffic congestion display system concerning 4th Embodiment has. As illustrated in FIG. 15, the traffic information creation device 1500 includes a display area setting unit 101, a traffic volume processing unit 1501, and a display data processing unit 103.

Congestion traffic processing unit 1501 (one example of a specific section), based on the speed and the traveling direction of the vehicles traveling within the calculation area a _i, among a plurality of directions candidates set in advance, generated in the operation area a _i A direction candidate representing the traveling direction of the vehicle is specified (selected) as a traffic jam direction. In the present embodiment, the traffic volume processing unit 1501 includes an individual vehicle vector calculation processing unit 102a and a traffic volume calculation processing unit 1501b.

Based on the speed and traveling direction of each vehicle that travels within the computation area a _i , the traffic volume computation processing unit 1501b calculates the traffic volume of the traveling direction vehicle that matches the direction candidate for each of the plurality of direction candidates. Calculated as a traffic direction evaluation value. Further, the traffic volume calculation processing unit 1501b specifies the traffic jam direction of the calculation area a _i based on the traffic volume calculated for each direction candidate.

  Next, the direction information display processing in the traffic jam display system according to the fourth embodiment will be described with reference to FIG. FIG. 16 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the fourth embodiment.

Traffic processing unit 1501b, based on the velocity vector of each vehicle traveling calculated by the individual vehicle vector operation unit 102a operational area a _1, for each of the plurality of directions candidate D _x, and the direction candidate D _x The traffic volume of the vehicle in the matching traveling direction is calculated as a traffic jam direction evaluation value (step S1601). The traffic processing unit 1501b, among the plurality of directions candidate D _x, traffic volume predetermined traffic amount calculated as congestion direction evaluation value (e.g., 100 units / miles) jam direction higher direction candidate D _x (Step S1602).

As described above, according to the traffic jam display system according to the fourth embodiment, the traffic volume of the vehicle traveling in the calculation area a _i is used as the traffic jam direction evaluation value, as in the first embodiment. An effect can be obtained.

(Fifth embodiment)
In the present embodiment, a route on which a vehicle travels is divided into a plurality of sections, and each of a plurality of direction candidates is based on a vehicle speed and a traveling direction included in vehicle detection information received from a vehicle detector installed in the section. This is an example in which a traffic jam direction evaluation value is calculated and the traffic jam direction of the section is specified based on the traffic jam direction evaluation value of each direction candidate. In the following description, description of the same configuration as in the first to fourth embodiments is omitted.

FIG. 17: is a block diagram which shows an example of a function structure of the traffic information production apparatus of the traffic congestion display system concerning 5th Embodiment. As illustrated in FIG. 17, the traffic information creation device 200 according to the present embodiment includes a display area setting unit 201, a vector processing unit 202, and a display data processing unit 203. The display area setting unit 201 sets a route for displaying the route map rm (hereinafter referred to as a display target route R). In the present embodiment, the display area setting unit 201 includes a calculation interval setting unit 201a and a display condition setting unit 101b. Calculating section setting unit 201a divides preset route (the display target route R) into a plurality of divided regions (one example of the predetermined region), the divided area, and computation area r _n. Here, n is a number for identifying a calculation interval, and is an integer of 1 or more.

Vector processing unit 202, from the probe information acquisition unit 6 acquires vehicle information indicating the operation interval r _n as the position of the vehicle. Moreover, the vector processing unit 202, the tiger cans data acquisition device 5, and acquires the vehicle sensing information generated on the basis of the vehicle detectors 3 installed in the computation area r _n. Then, the vector processing unit 202, based on the acquired vehicle information and the vehicle sensing information indicates the vehicle speed and the traveling direction (i.e., the speed and the traveling direction of the vehicle traveling in the computation area r _n), a plurality of direction candidates D x _(in this embodiment, upstream and downstream of the two directions candidate D _x) of the direction candidate D _x which represents the traveling direction of the vehicle in a traffic jam caused by the calculation section r _n, congestion direction (the It is specified (selected) as an example of one direction. In the present embodiment, the vector processing unit 202 includes an individual vehicle vector calculation processing unit 202a and a section vector calculation processing unit 202b.

Individual vehicle vector processing unit 202a, based on the speed and the traveling direction of the vehicle traveling in the computation area r _n, determining the velocity vector of the respective vehicle. Segment vector operation processing unit 202b includes, for each of a plurality of directions candidate calculation, of the velocity vector of each vehicle traveling in the computation area r _n, the inner product of the velocity vector coincides with the respective direction candidate, as congestion direction evaluation value To do. Further, the section vector operation processing unit 202b, based on the inner product of the velocity vector calculated as congestion direction evaluation value for each direction candidate, identifying congestion direction of the operation section r _n. In the present embodiment, an example will be described in which the traffic jam display system calculates, for each of a plurality of direction candidates, an inner product of vehicle speed vectors that coincides with the traveling direction of each direction candidate as a traffic jam direction evaluation value. As in the fourth to fourth embodiments, the average speed, the vehicle density, or the traffic volume may be calculated as the congestion direction evaluation value.

The display data processing section 203, the direction information that allows identifying a partial area corresponding to the calculation interval r _n in the route map displayed route R (an example of a route map), a congestion direction specified by the vector processing unit 202 Are displayed on the display device 2. As a result, it is possible to grasp in which direction in the partial area the vehicle traveling is congested, so that the fluidity of traffic in a wide range such as the city level can be visualized. In this embodiment, it has the display condition calculation process part 103a and the display process part 203b. The display processing unit 203b displays a route map including direction information whose display mode is changed on the display device 2.

Next, with reference to FIGS. 18 and 19, will be described setting process of the operation section r _n and the display conditions in the jam display system according to the present embodiment. FIG. 18 is a flowchart illustrating an example of a flow of processing for setting calculation sections and display conditions in the traffic jam display system according to the fifth embodiment. FIG. 19 is a diagram for explaining an example of a calculation section setting method in the traffic jam display system according to the fifth embodiment.

After setting the display target route R, the calculation section setting unit 201a divides the display target route R into a plurality of divided areas (for example, four sections) and calculates the divided sections as shown in FIG. interval _{r n} (e.g., computation area _{r 1 to 4)} is set (step S1101). As shown in FIG. 19, in the present embodiment, the arithmetic section setting unit 201a divides the calculation intervals r _n of length l which is previously set display target route R.

The calculation interval setting unit 201a, in the computation area _{r n,} sets the direction candidate _{D x} specifying a congestion direction. As illustrated in FIG. 19, in the present embodiment, the calculation interval setting unit 201 a sets an up direction candidate D ₂₁ and a down direction candidate D ₂₂ .

  The display condition setting unit 101b sets the direction information display condition in the same manner as in the first embodiment (step S302).

  Next, the direction information display processing in the traffic jam display system according to the fifth embodiment will be described with reference to FIG. FIG. 20 is a flowchart illustrating an example of a flow of direction information display processing in the traffic jam display system according to the fifth embodiment.

First, the arithmetic section setting unit 201a as in step S1101 of FIG. 18, by dividing the display target route R into a plurality of sections (step S1301), it sets the plurality of sections in the operation section _{r n} (step S1302) .

Individual vehicle vector processing unit 202a includes, among the plurality of operation sections _{r n,} sets the section identifying the congested direction calculation section _{r 1} (step S1303). Then, the individual vehicle vector processing unit 202a from the tiger cans data acquisition device 5, and acquires the vehicle sensing information generated based on the vehicle sensing result by the vehicle detectors 3 installed in the arithmetic section r _1. Further, the individual vehicle vector processing unit 202a from the probe information acquisition unit 6 acquires vehicle information indicating the position of the operation section r _1. Furthermore, the individual vehicle vector processing unit 202a is obtained based on the speed and the traveling direction of the vehicle sensing information and vehicle shown vehicle information, determine the velocity vector of a vehicle traveling in the computation area r ₁ (step S1304).

Next, the area vector calculation processing unit 202b calculates, for each of the two direction candidates D _{21 and 22} , the inner product of the speed vectors in the traveling direction that coincide with the direction candidate D _x as a traffic jam direction evaluation value (step S1305). Then, the area vector calculation processing unit 202b identifies, as the traffic jam direction, a direction candidate D _x having an inner product calculated as a traffic jam direction evaluation value larger than a predetermined value among the two direction candidates D _{21 and 22} (step S1306).

The display processing unit 203b, the display of the route map of the target route R, include direction information for the partial area corresponding to the calculation interval r _n that is congested direction is identified. Since the method for displaying the route map including the direction information on the display device 2 is the same as that in the first embodiment, detailed description thereof is omitted.

Individual vehicle vector processing unit 202a determines whether the identified congestion direction for every operation interval _{r n} (step S1307). If you do not specify a congested direction for every operation interval _{r n} (step S1307: No), the individual vehicles vector processing unit 202a increments the number n of calculation interval _{r n} identifying the congested direction (step S1308 ), The process returns to step S1304. On the other hand, if the identified congestion direction for every operation interval _{r n} (step S1307: Yes), terminates the display process of direction information.

  Next, a display example of direction information for the route map rm in the traffic jam display system according to the present embodiment will be described with reference to FIGS. 21 and 22. FIG. 21 and FIG. 22 are diagrams showing display examples of direction information for route maps in the traffic jam display system according to the fifth embodiment.

In the present embodiment, the display processing unit 203b changes the display mode (for example, at least one of color and size) of the direction information according to the degree of congestion in the direction of congestion. As shown in FIG. 21, the display processing unit 203b selects the direction candidate D ₂₁ (upward direction) from the direction candidates D ₂₁ and D ₂₂ (see FIG. 19) as the traffic jam direction, and the traffic jams in the computation sections r _{2 to 4} When the degree is determined as “congestion” or “crowded”, the partial areas pm ₂ to ₄ correspond to the calculation sections r ₂ to ₄ among the partial areas pm _{1 to 5} in the route map rm of the display target route R. On the other hand, an arrow d is superimposed and displayed. Further, as shown in FIG. 21, the display processing unit 203b performs the calculation in which the degree of congestion is determined as “congestion” among the partial areas pm ₂ to ₄ corresponding to the calculation sections r ₂ to ₄ in which the congestion direction is specified. for the partial region pm ₃ sections _{r 3,} include the red arrow d. On the other hand, as illustrated in FIG. 21, the display processing unit 203b performs the calculation in which the congestion degree is determined as “congested” among the partial areas pm ₂ to ₄ corresponding to the calculation sections r ₂ to ₄ in which the congestion direction is specified. for the partial region pm ₂ sections _{r 2,} including the arrow d in yellow.

Alternatively, as illustrated in FIG. 22, when the direction candidate D ₂₂ (downward direction) is identified as the traffic jam direction from the direction candidates D ₂₁ and D ₂₂ (see FIG. 19), the display processing unit 203b Among the partial areas pm _{1 to 5} in the route map rm, the arrow d is superimposed and displayed on the partial areas pm _{1 and 5} corresponding to the calculation sections r ₁ and ₅ . Furthermore, as shown in FIG. 22, the display processing unit 203b performs the calculation in which the degree of congestion is determined as “congestion” among the partial areas pm _1,5 corresponding to the calculation sections r _1,5 in which the congestion direction is selected. for the partial region pm ₁ interval _{r 1,} including the arrow d of the maximum size. At that time, the display processing unit 203b may set the color of the arrow d having the maximum size to red. On the other hand, as illustrated in FIG. 22, the display processing unit 203b performs the calculation in which the congestion degree is determined as “congested” among the partial areas pm _{1 and 5} corresponding to the calculation sections r ₁ and ₅ in which the congestion direction is selected. for the partial region pm ₅ sections _{r 5,} including the arrow d of smaller size than the maximum size. At this time, the display processing unit 203b may set the color of the arrow d smaller than the maximum size to yellow. That is, the display processing unit 203b increases the size of the arrow d as the traffic congestion level increases and changes the color of the arrow d according to the traffic congestion level in the traffic congestion direction.

  Thus, according to the traffic jam display system according to the fifth embodiment, it is possible to obtain the same effects as those of the first embodiment.

  As described above, according to the first to fifth embodiments, it is possible to visualize the fluidity of traffic in a wide range such as a city level.

  In the above-described embodiment, the display condition calculation processing unit 103a determines the degree of congestion in the traffic jam direction based on one of the average speed of the vehicle whose traffic direction is the traffic direction, the traffic volume of the vehicle, or the vehicle density of the vehicle. However, it is not limited to this. The display condition calculation processing unit 103a may obtain the degree of traffic jam in the traffic jam direction based on the inner product of the vehicle speed vectors with the traffic jam direction as the traveling direction.

  In the above-described embodiment, the traffic congestion display system calculates the traffic congestion direction based on any one of the inner product of the speed vector, the average speed, the vehicle density, and the traffic volume calculated as the traffic congestion direction evaluation value for each of the plurality of direction candidates. However, the traffic jam direction may be specified based on two or more traffic jam direction evaluation values among the inner product of the speed vectors, the average speed, the vehicle density, and the traffic volume. For example, the traffic jam display system may calculate a direction candidate whose average speed is slower than a predetermined speed and whose vehicle density is higher than the predetermined vehicle density as the traffic jam direction.

  Note that the program executed by the traffic information creation apparatus 1,200 of this embodiment is provided by being incorporated in advance in a ROM (Read Only Memory) or the like. The program executed by the traffic information creation device 1,200 of the present embodiment is a file in an installable format or an executable format, and is a CD-ROM, flexible disk (FD), CD-R, DVD (Digital Versatile Disk). For example, the program may be recorded on a computer-readable recording medium.

  Furthermore, the program executed by the traffic information creation device 1,200 of the present embodiment may be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network. . Moreover, you may comprise so that the program run with the traffic information production apparatus 1,200 of this embodiment may be provided or distributed via networks, such as the internet.

  The program executed by the traffic information creation device 1, 200, 900, 1200, 1500 according to this embodiment includes the above-described units (display area setting units 101, 201, vector processing units 102, 202 (speed processing unit 901, vehicle density). The module includes a processing unit 1201 or a traffic volume processing unit 1501) and a display data processing unit 103, 203). As actual hardware, a CPU (Central Processing Unit) reads a program from the ROM and executes it. As a result, the above-described units are loaded onto the main storage device, the display area setting units 101 and 201, the vector processing units 102 and 202 (speed processing unit 901, vehicle density processing unit 1201, or traffic volume processing unit 1501), display data The processing units 103 and 203 are generated on the main storage device.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

Claims (16)

Based on the speed and traveling direction of the vehicle traveling in the predetermined area, for each of a plurality of direction candidates, the inner product of the speed vectors of the vehicles that match the direction candidates, and the vehicle in which the direction of travel matches the direction candidates. The average speed, the vehicle density in the traveling direction that matches each direction candidate, or the traffic volume of the vehicle in the traveling direction that matches each direction candidate is calculated as the traffic direction evaluation value, and the calculated traffic direction evaluation value Based on, the specifying unit for specifying the direction candidate representing the traveling direction of the vehicle in the traffic jam occurring in the predetermined area as the traffic jam direction,
A display control unit that displays a map or route map corresponding to the predetermined area on a display unit including direction information that enables the traffic jam direction to be identified;
An information processing apparatus comprising:   The information processing apparatus according to claim 1, wherein the specifying unit specifies, as the traffic jam direction, the direction candidate whose inner product of the speed vectors calculated as the traffic jam direction evaluation value is greater than a predetermined value.   The information processing apparatus according to claim 1, wherein the specifying unit specifies the direction candidate whose average speed calculated as the traffic direction evaluation value is slower than a predetermined speed as the traffic direction.   The information processing apparatus according to claim 1, wherein the specifying unit specifies, as the traffic jam direction, the direction candidate in which the vehicle density calculated as the traffic jam direction evaluation value is higher than a predetermined vehicle density.   The information processing apparatus according to claim 1, wherein the specifying unit specifies, as the traffic jam direction, the direction candidates whose traffic volume calculated as the traffic jam direction evaluation value is greater than a predetermined traffic volume.   The information processing apparatus according to claim 1, further comprising: a setting unit configured to divide the map or the route map into a plurality of divided areas and set the divided areas as the predetermined areas.   The display control unit obtains a traffic jam degree in the traffic jam direction based on the average speed, the traffic volume, or the vehicle density of a vehicle having the traffic jam direction as a traveling direction, and the direction depends on the traffic jam degree. The information processing apparatus according to claim 1, wherein the information display mode is changed.   The information processing apparatus according to claim 7, wherein the display control unit changes a color or a size of the direction information according to the congestion degree. Based on the speed and traveling direction of the vehicle traveling in the predetermined area, for each of a plurality of direction candidates, the inner product of the speed vectors of the vehicles that match the direction candidates, and the vehicle in which the direction of travel matches the direction candidates. The average speed, the vehicle density in the traveling direction that matches each direction candidate, or the traffic volume of the vehicle in the traveling direction that matches each direction candidate is calculated as the traffic direction evaluation value, and the calculated traffic direction evaluation value Based on the direction candidate representing the direction of travel of the vehicle in the traffic jam that occurred in the predetermined area as the traffic jam direction,
A map or route map corresponding to the predetermined area is displayed on the display unit including direction information that enables the traffic jam direction to be identified;
Congestion display method including that.   The traffic jam display method according to claim 9, wherein the direction candidate whose inner product of the speed vectors calculated as the traffic jam direction evaluation value is larger than a predetermined value is specified as the traffic jam direction.   The traffic jam display method according to claim 9, wherein the direction candidate whose average speed calculated as the traffic jam direction evaluation value is slower than a predetermined speed is specified as the traffic jam direction.   The traffic jam display method according to claim 9, wherein the direction candidate whose vehicle density calculated as the traffic jam direction evaluation value is higher than a predetermined vehicle density is specified as the traffic jam direction.   The traffic jam display method according to claim 9, wherein the direction candidates whose traffic volume calculated as the traffic jam direction evaluation value is greater than a predetermined traffic volume are specified as the traffic jam direction.   The traffic jam display method according to claim 9, wherein the map or the route map is divided into a plurality of divided areas, and the divided areas are set as the predetermined areas.   Based on the average speed, the traffic volume, or the vehicle density of the vehicle whose traveling direction is the traffic direction, the traffic level in the traffic direction is obtained, and the display mode of the direction information is changed according to the traffic level. The traffic jam display method according to claim 9.   The traffic jam display method according to claim 15, wherein a color or a size of the direction information is changed according to the traffic jam degree.

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