JP2010025691A - Traffic information display apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traffic information display apparatus which can improve the visibility of information including traffic information. <P>SOLUTION: The traffic information display apparatus includes: a VICS receiving section 4 for acquiring traffic congestion information; a route search section 11 and an estimated travel route setting section 12 for calculating travel routes toward a travel direction from the present vehicle position; an entering intersection extraction section 13 and a leaving intersection extraction section 14 for extracting, in accordance with the length of a congested section specified by the traffic congestion information out of the calculated travel routes, a leaving node and an entering node for avoiding the congested section; a leaving link extraction section 16 for extracting an end point in a road link with the extracted leaving node set to be a start point; and a bypass search section 15 for calculating a bypass from the end point in the road link with the extracted leaving node set to be the start point to the entering node. Only the traffic congestion information on the travel route and the bypass is extracted by a traffic information extraction section 17. The traffic congestion information is displayed on a display section 8 by a traffic information display control section 18. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a traffic information display apparatus and method for displaying traffic information such as traffic jam information on an in-vehicle device.

  Conventionally, as a technique for displaying traffic information such as traffic jam, a navigation device described in Patent Document 1 below is known.

When the destination is not set, the navigation device sets a virtual route based on the connectivity of the traveling route and performs route search by performing search weighting on the virtual route. And the navigation apparatus is limited to the area surrounded by the virtual route and the route as a result of the route search, and displays all the traffic information in the region.
JP-A-9-270093

  However, in the navigation device described above, all the traffic information in the area surrounded by the virtual route and the route as a result of performing the route search by weighting the virtual route is displayed. Traffic information not only in the traveling direction but also in the opposite direction is displayed. Therefore, if the area where traffic information is displayed is an area where roads are dense or where there are many traffic jams, the map looks complicated due to traffic information and visibility is reduced. was there.

  Therefore, the present invention has been proposed in view of the above-described circumstances, and an object thereof is to provide a traffic information display device and method that can improve the visibility of information including traffic information.

  The present invention provides an exit node and an entry node for detouring a traffic jam section according to the traffic jam length of the traffic jam section on the travel route from the current vehicle position to the traveling direction when displaying traffic information to the driver. And a detour route from the end point to the ingress node in the road link starting from the extracted leaving node is calculated. And this invention displays only the traffic information on a driving | running route and a detour route among traffic information, in order to solve the above-mentioned subject.

  According to the present invention, when the traffic information is displayed to the driver, the traffic information on the detour route that bypasses the travel route and the traffic jam section from the current vehicle position to the traveling direction is displayed. Can be reduced, and the visibility of traffic jam information can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
The present invention is applied to the traffic information display device shown as the first embodiment configured as shown in FIG. 1, for example. In this traffic information display device, a control unit 1 includes a GPS receiving unit 2, a gyro sensor 3, a VICS receiving unit 4, a communication control unit 5, an operation input unit 6, an audio output unit 7, a display unit 8, and a data storage unit 9. Connected and configured. This traffic information display device operates when the vehicle is started (ignition is on), and displays various types of traffic information such as a travel route and traffic information on the travel route to the driver of the vehicle.

  The GPS receiver 2 receives a signal from a GPS satellite and generates current position information every predetermined time. The current position information of the host vehicle is supplied to the control unit 1. The gyro sensor 3 is an angular velocity sensor that detects the displacement of the direction of the host vehicle, and supplies the angular velocity information to the control unit 1 every predetermined time. Thereby, the control part 1 acquires the correct present position information of the own vehicle using present position information and angular velocity information.

  The VICS receiver 4 displays the traffic information received from FM multiplex broadcasting or a transmitter on the road as graphics or characters. This traffic information is edited and processed by an information providing system called a VICS center. This traffic information is road traffic information such as traffic jam information and traffic regulation information. The received traffic information is updated and distributed in real time, and can be superimposed and displayed on the image on the display unit 8 in real time.

  In this way, the traffic jam information of the traffic information received by the traffic information display device is divided into sections such as nodes and road links of map data used for map display in the traffic information display device. Delivered in each of the vertical directions in the section. That is, the traffic information of the road link representing a certain road includes information representing the degree of traffic congestion for each of the opposite traveling directions. The VICS receiver 4 functions as an information acquisition unit that acquires traffic jam information.

  The communication control unit 5 controls communication processing of the GPS receiving unit 2 and the VICS receiving unit 4 by the control unit 1 of the traffic information display device.

  The operation input unit 6 includes a button group that can be operated by the vehicle driver, a dial mechanism, a touch panel mechanism installed on the display screen of the display unit 8, and the like. The operation input unit 6 detects an operation performed by the vehicle driver and supplies it to the control unit 1 as an operation input signal.

  The audio output unit 7 includes a speaker to which an audio signal is supplied according to the control of the control unit 1. The voice output unit 7 outputs a voice prompting the operation of the traffic information display device, a voice for driving route guidance, a voice to be transmitted as traffic information, and the like according to the voice signal.

  The display unit 8 is composed of a liquid crystal display provided at a position that is visible to the vehicle driver. The display unit 8 operates according to the image signal supplied from the control unit 1 and displays a map to be presented to the vehicle driver, a travel route on the map, traffic information as traffic information according to the travel route, and the like. . Further, when the touch panel mechanism as the operation input unit 6 is installed, the display unit 8 performs menu display for selecting the operation of the traffic information display device.

  The data storage unit 9 includes a hard disk device that stores various types of information for the traffic information display device to transmit various types of information to the vehicle driver. Information stored in the data storage unit 9 includes map information, travel history information, voice template information for outputting various sounds, display setting information such as a display method, and the like.

  The control unit 1 includes a route search unit 11, a planned travel route setting unit 12, an approach intersection extraction unit 13, an exit intersection extraction unit 14, a detour route search unit 15, an exit link extraction unit 16, and traffic information extraction. Unit 17 and a traffic information display control unit 18. The control unit 1 includes hardware by a computer including a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), a ROM, and a RAM. However, in FIG. 1, for convenience, the description is divided into functional blocks.

  The route search unit 11 acquires the current position information of the host vehicle based on the information supplied from the GPS receiving unit 2 and the gyro sensor 3. The route search unit 11 calculates a travel route on which the host vehicle travels using the current position information and the map information stored in the data storage unit 9. The route search unit 11 calculates a recommended route from the current position to the destination when the destination of the host vehicle is set according to the operation of the operation input unit 6. Then, the planned travel route setting unit 12 sets a recommended route from the current position to the destination as a planned travel route on which the host vehicle plans to travel in the future. As will be described later, this planned travel route is used as information for determining a range for presenting traffic information.

  On the other hand, the route estimation search unit 19 calculates a virtual travel route with respect to the vehicle traveling direction from the current position when the host vehicle is traveling in a state where the destination of the host vehicle is not set. At this time, the route estimation unit 19 searches for a travel route on the assumption that the vehicle travels along the travel route on which the host vehicle is currently traveling, and the road type is equal when the currently traveled travel route is interrupted. The route is searched as a virtual travel route. Further, when a route equal to the currently traveling route is interrupted, the route estimation unit 19 estimates the route that is closest to the straight line as the virtual traveling route with respect to the route before the interruption. Thereby, the route estimation unit 19 can search for a virtual traveling route in the map of the range displayed on the display unit 8. The estimated virtual travel route is set as the planned travel route by the planned travel route setting unit 12.

  The planned travel route setting unit 12 uses the travel route calculated by the route estimation unit 19 as information on the planned travel route for displaying traffic information, an entrance intersection extraction unit 13, an exit intersection extraction unit 14, and a detour route search unit 15. To supply.

  The approach intersection extraction unit 13 and the exit intersection extraction unit 14 correspond to the length of the traffic congestion section specified by the traffic congestion information acquired by the VICS reception unit 4 in the planned travel route set by the planned travel route setting unit 12. (For example, the length is 1 km or more), and the leaving node and the entering node for detouring the traffic jam section are extracted. The approach intersection extraction unit 13 and the exit intersection extraction unit 14 recognize the length of the traffic jam section based on the traffic jam information of the road link that configures the planned travel route among the traffic jam information included in the traffic information. And the approach intersection extraction part 13 and the exit intersection extraction part 14 extract the exit node and the approach node for detouring a traffic jam section from the exit node and the approach node included in the travel planned road. At this time, the exit intersection extraction unit 14 extracts an exit intersection (exit node) that exits the planned travel route before the traffic jam section when detouring is necessary because the traffic jam section is long. Moreover, the approach intersection extraction part 13 is an approach intersection (entry node) that enters the planned travel route at a point on the planned travel route after the traffic congestion segment ends when the traffic congestion segment is long and needs to be detoured. To extract. Such an approach intersection extraction unit 13 and an exit intersection extraction unit 14 function as a node extraction unit that extracts an exit node and an entry node for detouring a traffic jam section.

  The exit link extraction unit 16 uses the exit node extracted by the exit intersection extraction unit 14 to extract the end point of the road link starting from the exit node. Specifically, the exit link extraction unit 16 reads road links connected to the exit node extracted by the exit intersection extraction unit 14 from the map data, and extracts the end points of the respective road links. Of the road links to be extracted, the road links constituting the planned travel route are not extracted. Such an exit link extraction unit 16 functions as an exit end point extraction unit that extracts an end point on a road link starting from the exit node extracted by the node extraction unit.

  The detour route search unit 15 detours the traffic congestion section on the planned travel route based on the entry node extracted by the approach intersection extraction unit 13 and the exit link end point extracted by the exit link extraction unit 16 and travels again. Search for a detour route back to the planned route. At this time, the detour route search unit 15 calculates a detour route from the end point of the exit link to the entry node. Here, it is possible to search for the shortest detour route from the exit link to the entry node by increasing the weight of the road link constituting the planned travel route, that is, making it difficult to select the road link. Such a detour route search unit 15 functions as a detour route calculation unit that calculates a detour route from the end point of the leaving node to the ingress node extracted.

  The traffic information extraction unit 17 uses the planned travel route set by the planned travel route setting unit 12, the exit link extraction unit 16, and the detour route search unit 15 among the traffic jam information around the host vehicle acquired by the VICS reception unit 4. The traffic jam information on the searched detour route is extracted. Here, the traffic information extraction unit 17 extracts only the traffic jam information from the leaving node to the entering node from the traveling direction of the host vehicle and the traffic jam information of the detour route on the planned travel route.

  The traffic information display control unit 18 causes the display unit 8 to display the traffic jam information extracted by the traffic information extraction unit 17 on the map stored in the data storage unit 9. In addition, the traffic information display control unit 18 may display the traffic jam information only for the planned travel route and the detour route, but not limited to this, by emphasizing the traffic jam information for the planned travel route and the detour route, It is also possible to display on the display unit 8 an image that has been subjected to image processing that distinguishes it from other traffic jam information and improves the visibility of the planned travel route and the detour route.

  Such a traffic information display device displays only the traffic jam information in the traveling direction of the own vehicle among the traffic jam information that can be received and displayed by the VICS receiver 4 and is traffic jam information on the planned travel route and the detour route. Therefore, the amount of traffic jam information displayed on the display unit 8 can be reduced. Thereby, according to the traffic information display device, it is easy to see the route even in an area where roads are dense or where there are many traffic jams, and the visibility of traffic jam information can be improved.

  Next, with reference to the flowchart of FIG. 2 and FIGS. 3 to 8, a processing procedure and a specific processing example when traffic information is displayed on the display unit 8 by the traffic information display device configured as described above. explain.

  The traffic information display device starts a scheduled travel route setting process by the planned travel route setting unit 12 in step S1 every predetermined period. In step S <b> 2, the planned travel route setting unit 12 determines whether the travel route has already been set by the route search unit 11. If the travel route is not set because the destination is not set, in step S3, a virtual travel route in the traveling direction of the host vehicle is set, and the virtual travel route is set as the planned travel route. Set. On the other hand, when the destination is set by the vehicle driver and the recommended route to the destination is set, in step S4, the planned travel route setting unit 12 sets the recommended route as the planned travel route. .

  For example, FIG. 3 shows the planned travel route set in steps S1 to S4. In FIG. 3, the host vehicle 21 represented by a triangle, the planned travel route 22 represented by a thick line, and a surrounding road 23 outside the planned travel route 22 represented by a thin line are shown.

  In the next step S5, the exit intersection and the entrance intersection for detouring the traffic jam section are extracted from the planned travel route set by the planned travel route setting unit 12 by the approach intersection extraction unit 13 and the exit intersection extraction unit 14. . For example, as shown in FIG. 4, when there is a traffic jam section on the scheduled travel route 22 set in the traveling direction of the host vehicle 21, the exit intersection extraction unit 14 selects an intersection between the host vehicle 21 and the traffic jam section. Among the nodes shown, intersections existing within a predetermined distance from the host vehicle are defined as exit intersections 24a and 24b (exit nodes). Moreover, the approach intersection extraction part 13 makes the intersection which exists more than a predetermined distance from the own vehicle among the nodes which show the intersection of the driving planned road 22 beyond the traffic congestion section from the own vehicle 21 as the approach intersection 25 (entry node). . The degree of traffic congestion is classified according to the level of “smooth”, “congested”, and “congested”, but a road link that is “congested” may be a traffic jam section, and “congested” and “congested” It is good also considering the road link used as a traffic jam section.

  In the next step S6, the exit link extraction unit 16 extracts road links branched from the exit intersections 24a and 24b extracted in step S5 as exit links, for example, as shown in FIG. Three exit links 26a-1, 26a-2, 26a-3 are extracted from the exit intersection 24a, and two exit links 26b-1, 26b-2 are extracted from the exit intersection 24b (hereinafter referred to as these (Exit links are collectively referred to as “exit links 26”). Here, the exit link extraction unit 16 does not extract the road links that overlap the planned travel road among the road links connected to the exit intersections 24a and 24b as exit links.

  In the next step S7, the detour route search unit 15 searches for a detour route from the end point of the exit link 26 extracted in step S6 to the approach intersection 25 extracted in step S5. For example, as shown in FIG. 6, the detour route 27a from the end point of the exit link 26a-1 to the entrance intersection 25, the detour route 27c from the end point of the exit link 26a-2 to the entrance intersection 25, and the end point of the exit link 26b-2 ( The detour path 27b from the exit link 26a-3 to the approach intersection 25 is searched. Thereby, the detour route search unit 15 can acquire a detour route group that detours the traffic jam section on the planned travel route 22 (hereinafter, collectively referred to as “detour route 27”).

  In the next step S8, the traffic information extraction unit 17 extracts the traffic information on the road link that constitutes the planned travel route set in step S1 and the detour route searched in step S7. Here, the traffic information around the host vehicle acquired by the VICS receiver 4 is supplied to the traffic information extraction unit 17 and only the traffic information on the planned travel route and the detour route is extracted from the traffic information. To do. For example, when the planned travel route 22 and the detour routes 27a to 27c are set as shown in FIG. 6, the traffic information extracting unit 17 is on the planned travel route 22 and the detour routes 27a to 27c as shown in FIG. Only the traffic jam information in the direction in which the host vehicle 21 reaches the approach intersection 25 is extracted.

  In the next step S9, the traffic information display control unit 18 creates display data including the own vehicle 21 and traffic jam information as shown in FIG. 7 and supplies it to the display unit 8 to display the traffic information. .

  Therefore, in this traffic information display device, for example, even when traffic information such as that shown in FIG. 8 is received by the VICS receiver 4, the vehicle is not displayed as shown in FIG. It is possible to extract and display only the traffic jam information on the planned travel route and the detour route in the traveling direction.

  As described above, according to the traffic information display device shown as the first embodiment of the present invention, the planned travel route for the traveling direction is calculated from the current vehicle position, and the traffic congestion section of the planned travel route is bypassed. The leaving node and the entering node are extracted. The traffic information display device can calculate a detour route from the end point to the ingress node in the road link including the leaving node, and can display only the planned travel route and traffic congestion information in the vehicle traveling direction on the detour route. Therefore, according to this traffic information display device, since bidirectional traffic congestion information is not displayed for each road, the traffic information is included without causing complicated display by displaying a lot of traffic information. The visibility of information can be improved.

  In addition, according to this traffic information display device, as an exit node, an intersection existing within a predetermined distance from the host vehicle is extracted, so traffic information on a road branched from an intersection existing within a predetermined distance from the current position is displayed. can do. Therefore, according to this traffic information display device, it is possible to avoid reducing the visibility of traffic information without displaying traffic jam information branched from a far-off intersection.

  Further, according to the traffic information display device, the traffic information on the planned travel route is extracted from the acquired traffic information, the detour route that bypasses the extracted traffic on the planned travel route is calculated, and the acquired traffic jam Extracts traffic jam information on the detour route from the information. Thereby, according to this traffic information display device, it is possible to display only the traffic information on the planned travel route and the detour route. Therefore, according to this traffic information display device, the visibility of information including traffic information can be improved without causing complicated display contents by displaying a lot of traffic information.

[Second Embodiment]
Next, a traffic information display device shown as a second embodiment of the present invention will be described. In addition, about the part similar to the above-mentioned 1st Embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  This traffic information display device sets a detour route for each traffic congestion section when there are a plurality of traffic congestion sections on the planned travel route. As shown in FIG. 9, when the traffic information display device receives sections 29-1, 29-2, 29-3, 29-4, and 29-5 on the planned travel route, It is determined that the congestion section 29-3 and the congestion section 29-4 are to be detoured. In this case, the entrance intersection extraction unit 13 and the exit intersection extraction unit 14 set an exit intersection 24a and an entrance intersection 25a for bypassing the congestion section 29-1, and bypass the congestion section 29-3 and the congestion section 29-4. The exit intersection 24b and the entrance intersection 25b are set.

  Then, the exit link extraction unit 16 extracts the exit link branched from the exit intersection 24a, and the detour route search unit 15 calculates a detour route group that reaches the entrance intersection 25a from the end point of the exit link of the exit intersection 24a. Traffic information 30a, 30b, 30c corresponding to the route group can be displayed. Further, the exit link extraction unit 16 extracts the exit link branched from the exit intersection 24b, and the detour route search unit 15 calculates a detour route group that reaches the entrance intersection 25b from the end point of the exit link of the exit intersection 24b. Traffic information 31a and 31b corresponding to the route group can be displayed.

  Thus, one of the traveling directions of the host vehicle 21 among the sections 29-1, 29-2, 29-3, 29-4, 29-5 and the traffic information 30a, 30b, 30c, 31a, 31b on the planned traveling road. It is possible to display traffic information only in the direction.

  According to such a traffic information display device, when there are a plurality of traffic congestion sections, the traffic congestion information of the planned travel route and the detour route is performed by performing the processing of steps S5 to S8 described above for each traffic congestion section. Can be displayed. Thereby, even if the traffic information display apparatus has received the traffic jam information shown in FIG. 7 by the VICS receiver 4, the host vehicle proceeds as shown in FIG. 9 without displaying all of the traffic information. It is possible to extract and display only the traffic jam information on the planned travel route and the detour route, and the visibility of the traffic information can be improved.

[Third Embodiment]
Next, a traffic information display device shown as a third embodiment of the present invention will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  This traffic information display device includes an entry node in one of the traffic congestion sections close to the current vehicle position among the traffic congestion sections adjacent to each other through the non-congestion section when there are a plurality of traffic congestion sections on the planned travel route. A detour route from the start point of the road link to the end point of the road link including the leaving node in the other traffic jam section is calculated.

  Specifically, as shown in FIG. 10, the adjacent traffic jam section 29-1, the traffic jam section 29-3, and the traffic jam section 29 via the non-jamming section 29-2 on the planned road that is not congested or congested. -4 is present, as described in the second embodiment, the traffic information display device uses the traffic from the exit intersection 24a to the entrance intersection 25a to bypass the traffic jam section 29-1 on the planned travel route. Information 30a, 30b, 30c is displayed, and traffic information 31a, 31b from the exit intersection 24b to the entrance intersection 25b is displayed in order to bypass the congestion section 29-3 and the congestion section 29-4.

  And the detour route search part 15 is the other congestion area from the starting points 41a and 41b of the road link including the approach intersection 25a in the traffic congestion area 29-1 near the current host vehicle 21 among the traffic information 30a, 30b, and 30c. 29-3, the route to the road link end points 42a and 42b including the exit intersection 24b in the traffic jam section 29-4 is calculated. As a result, the detour route search unit 15 allows the section 43a from the start point 41a of the road link connected to the entrance intersection 25a to the end point 42a of the road link connected to the exit intersection 24b, and the road link connected to the entrance intersection 25a. The section 43b from the start point 41b to the end point 42b of the road link connected to the exit intersection 24b can be added as a detour route.

  Thereby, the traffic information extraction part 17 can also extract the traffic congestion information of the added sections 43a and 43b, and can display on the display part 8. FIG. Therefore, according to this traffic information display device, when there are a plurality of traffic congestion sections, the vehicle detours the traffic congestion section 29-1 in the foreground and returns to the non-congestion section 29-2 of the planned travel route again, It is possible to display the traffic information of the sections 43a and 30b for selecting whether to travel toward the detour routes 31a and 31b that bypass the traffic sections 29-3 and 29-4 without returning to the non-congested section 29-2. it can.

  Thereby, even if the traffic information display apparatus has received the traffic jam information shown in FIG. 8 by the VICS receiver 4, the host vehicle proceeds as shown in FIG. 10 without displaying all of the traffic information. It is possible to extract and display the traffic information of the section that connects the detour routes in addition to the planned travel route and detour route, and the visibility of the traffic information can be improved.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

It is a block diagram which shows the structure of the traffic information display apparatus shown as 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure explaining the state which set the driving planned route by the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure explaining the state which set the exit intersection and the approach intersection on the planned travel road by the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure explaining the state which set the exit link from the exit intersection by the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure explaining the state which set the detour route by the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure explaining extracting the traffic jam information on a driving planned route and a detour route by the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure which shows all the traffic jam information received by the traffic information display apparatus shown as 1st Embodiment of this invention. It is a figure explaining setting up a detour route for each of a plurality of traffic jam sections, and extracting traffic jam information by the traffic information display device shown as a 2nd embodiment of the present invention. It is a figure explaining using the traffic information display apparatus shown as 3rd Embodiment of this invention, setting a detour route with respect to each of several traffic congestion sections, and extracting the traffic congestion information of the area which connects the said detour routes. is there.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control part 2 GPS receiving part 3 Gyro sensor 4 VICS receiving part 5 Communication control part 6 Operation input part 7 Audio | voice output part 8 Display part 9 Data storage part 11 Route search part 12 Planned travel path setting part 13 Approach intersection extraction part 14 Exit Intersection Extraction Unit 15 Detour Route Search Unit 16 Exit Link Extraction Unit 17 Traffic Information Extraction Unit 18 Traffic Information Display Control Unit 19 Route Estimation Unit 21 Own Vehicle 22 Planned Travel Route 23 Peripheral Road 24 Exit Intersection 25 Entering Intersection 26 Exit Link 27 Detour Route

Claims (8)

Information acquisition means for acquiring traffic jam information;
Travel route calculation means for calculating a travel route for the traveling direction from the current vehicle position;
Node extraction means for extracting an exit node and an entry node for detouring the traffic congestion section according to the length of the traffic congestion section specified by the traffic jam information of the travel route calculated by the travel route calculation means;
Exit endpoint extraction means for extracting an end point in a road link starting from the exit node extracted by the node extraction means;
A detour route calculating unit that calculates a detour route from the end point extracted by the exit end point extracting unit to the ingress node extracted by the node extracting unit;
A traffic information display device comprising: display means for displaying traffic information on the detour route calculated by the travel route and the detour route calculator.   The travel route calculation means calculates a virtual travel route with respect to the vehicle traveling direction from the current position when the host vehicle is traveling in a state where the destination of the host vehicle is not set. The traffic information display device according to claim 1.   The traffic information display device according to claim 1, wherein the leaving node is an intersection existing within a predetermined distance from the host vehicle.   The traffic information display device according to claim 1, wherein the entry node is an intersection existing at a predetermined distance or more from the host vehicle.   When there are a plurality of traffic congestion sections specified by the traffic jam information on the travel route calculated by the travel route calculation means, the node extraction means uses the exit node and the entry node for each of the traffic congestion sections. , The end point of the road link starting from the exit node is extracted by the exit end point extracting unit, the detour route is calculated by the detour route calculating unit, and the driving unit and the plurality of detour routes are displayed by the display unit. The traffic information display device according to any one of claims 1 to 4, wherein the traffic information is displayed.   The detour route calculation means, when there are a plurality of traffic congestion sections specified by the traffic jam information on the travel route calculated by the travel route calculation means, among the adjacent traffic congestion sections through non-congestion sections Calculating a detour route from a start point of a road link including an entry node in one traffic congestion section close to the current vehicle position to an end point of the road link starting from an exit node in the other traffic congestion section. The traffic information display device according to any one of claims 1 to 4.   In accordance with the length of the traffic jam section in the travel route from the current vehicle position to the traveling direction, the exit node and the entrance node for detouring the traffic jam section are extracted, and the end point in the road link starting from the extracted exit node A traffic information display method, comprising: calculating a detour route from a vehicle to an entry node, and displaying traffic information on the travel route and the detour route. Information acquisition means for acquiring traffic jam information;
A travel route calculating means for calculating a travel route;
Among the traffic jam information acquired by the information acquisition unit, a travel route traffic information extraction unit that extracts traffic jam information on the travel route;
Detour route calculating means for calculating a detour route for detouring the traffic jam on the travel route extracted by the travel route traffic information extracting means;
A traffic information display device comprising: a detour route traffic information extracting unit that extracts traffic information on the detour route from the traffic information acquired by the information acquisition unit.

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