JP2010066001A - Navigation system, guidance method and guidance program for traffic situation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system, a guidance method and a guidance program for traffic situation to support smooth running when a line of vehicles exists in front of one's own vehicle. <P>SOLUTION: A controlling device 11 of the navigation system 10 detects a guidance point to which own vehicle should change its direction, and decides whether a first line of vehicles following the guidance point exists, while deciding whether a second line of vehicles exists between the first line of vehicles and the own vehicle. If the first line of vehicles and the second line of vehicles exist, it decides whether a zone into which the own vehicle can proceed between the first line of vehicles and the second line of vehicles, and if it is decided that the zone exists, it guides the own vehicle to proceed in front of the first line of vehicles. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device, a traffic situation guidance method, and a traffic situation guidance program.

Recently, the navigation device has a function of not only providing traffic information around the host vehicle to the user but also guiding a detour or the like that avoids a traffic jam section. Furthermore, in the navigation device described in Patent Document 1, when the host vehicle passes straight ahead and passes through the intersection, if a traffic jam occurs due to a right turn waiting at the intersection, a recommendation for avoiding the traffic jam Guides the lane. Also, when the vehicle turns right at an intersection where there is a traffic jam due to a right turn waiting, the vehicle notifies the traffic jam early and guides it to the end of the traffic jam.
JP 2005-249655 A

  However, the navigation device does not support the following cases. For example, as shown in FIG. 8, there is another intersection 101 between the intersection 100 where the host vehicle 105 is scheduled to turn right and the host vehicle 105, and a vehicle train 103 including a plurality of vehicles at both the intersections 100 and 101. , 104 may exist. In such a case, even if the front vehicle train 104 is avoided by guiding to the recommended lane 102, if there is no space behind the rear vehicle train 103, the host vehicle 105 is arranged at the end of the vehicle train. I can't. In addition, although there is a space where the host vehicle 105 can enter behind the rear row 103, it may take time to reach the intersection 100 scheduled to turn right along the end of the front row 104. There is sex.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a navigation device, a traffic condition guidance method, and a traffic that can support smooth running when a train is present ahead of the host vehicle. To provide a situational guidance program.

  In order to solve the above-mentioned problems, the invention according to claim 1 includes a guide point detecting means for detecting a guide point where the own vehicle should change the course, and a first vehicle train continuing from the guide point. First vehicle train detection means for judging whether or not, and second vehicle train detection for judging whether or not a second vehicle train exists between the first vehicle train and the own vehicle position And when the first vehicle train and the second vehicle train are present, there is a section where the host vehicle can enter between the first vehicle train and the second vehicle train. And a guidance control means for guiding that the vehicle should enter before the first vehicle train when it is determined that the section exists.

  According to a second aspect of the present invention, in the navigation device according to the first aspect of the present invention, the navigation device further includes a traffic jam information acquiring unit that acquires traffic jam information from the outside, and the guidance control unit uses the traffic jam information to generate the first traffic jam information. The end position of the second train row and the start position of the second train row are acquired, and it is determined whether or not the length from the end position to the start position is equal to or greater than a predetermined length. When it is longer than the length, the gist is to determine that there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train.

According to a third aspect of the present invention, in the navigation device according to the first aspect, the guidance control means is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train. When it is determined that the vehicle does not exist, the gist is to guide the host vehicle that the vehicle should enter before the end of the second vehicle train.

  According to a fourth aspect of the present invention, in the traffic situation guidance method using the control means for performing guidance according to the traffic situation, the control means detects a guidance point where the own vehicle should change the course, and the guidance point Is determined whether there is a first vehicle train that continues from the first vehicle train, and whether there is a second vehicle train between the first vehicle train and the vehicle position, When there is a second vehicle train and a second vehicle train, it is determined whether or not there is a section where the host vehicle can enter between the first vehicle train and the second vehicle train. When it is determined that the section exists, the gist is to guide that the vehicle should enter before the first train.

  According to a fifth aspect of the present invention, in the traffic situation guidance program using the control means for performing guidance according to the traffic situation, the control means is a guidance point detection means for detecting a guidance point where the own vehicle should change the course. The second vehicle train is between the first vehicle train detecting means for determining whether or not the first vehicle train continuing from the guide point exists, and the first vehicle train and the vehicle position. Second vehicle train detecting means for determining whether or not the vehicle exists, and when the first vehicle train and the second vehicle train are present, the first vehicle train and the second vehicle train, As a guidance control means for guiding whether or not there is a section in which the host vehicle can enter, and that it is determined that there is a section, the vehicle should enter before the first train. The gist is to make it function.

  According to the first aspect of the present invention, the first vehicle train that continues from the guide point where the vehicle should change the course, and the second vehicle train that exists between the first vehicle train and the vehicle position. When there is, it is determined whether or not there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train. When there is a section where the host vehicle can enter, guidance is provided to the effect that the vehicle should enter the section. For this reason, even when there are both the first vehicle train and the second vehicle train ahead of the host vehicle position, it is possible to provide appropriate guidance to the host vehicle and support smooth running of the host vehicle. .

  According to the second aspect of the present invention, the end position of the first vehicle train and the start position of the second vehicle train are acquired using the traffic jam information acquired from the outside. Further, when the length from the end position to the start position is equal to or longer than a predetermined length, it is determined that there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train. . For this reason, it is possible to accurately determine the presence or absence of an enterable section.

  According to the third aspect of the present invention, when it is determined that there is no section in which the host vehicle can enter between the first vehicle train and the second vehicle train, You will be informed that you should enter before the second train. For this reason, appropriate guidance can be given to the host vehicle even when the second vehicle train is continuous from the first vehicle train.

  According to the method of claim 4, the first vehicle train that continues from the guide point where the vehicle should change the course, and the second vehicle train that exists between the first vehicle train and the vehicle position. When there is, it is determined whether or not there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train. When there is a section where the host vehicle can enter, guidance is provided to the effect that the vehicle should enter the section. For this reason, even when there are both the first vehicle train and the second vehicle train ahead of the host vehicle position, it is possible to provide appropriate guidance to the host vehicle and support smooth running of the host vehicle. .

According to the fifth aspect of the present invention, in accordance with the route guidance program, the vehicle exists between the first vehicle train continuing from the guidance point where the route should be changed, and between the first vehicle train and the vehicle location. When there is a second vehicle train, it is determined whether there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train. When there is a section where the host vehicle can enter, guidance is provided to the effect that the vehicle should enter the section. For this reason, even when there are both the first vehicle train and the second vehicle train ahead of the host vehicle position, it is possible to provide appropriate guidance to the host vehicle and support smooth running of the host vehicle. .

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram of a traffic information providing system 1 according to the present embodiment.
The traffic information providing system 1 includes an information providing server 2 installed in an information center, a base station 3, and a navigation system 10 (see FIG. 2) installed in each vehicle C. The information providing server 2 is connected to each navigation system 10 via the base station 3 and the network N so that data can be transmitted and received by wireless communication.

  The information providing server 2 distributes traffic jam information to each navigation system 10. The traffic jam information includes the presence / absence of traffic jam in a predetermined area, a traffic jam occurrence section, and the like. The traffic jam occurrence section indicates a traffic jam occurrence lane and a head position and a tail position of a traffic jam train. Such information is generated, for example, when the information providing server 2 statistics the probe data acquired from each vehicle C at intervals of 1 minute. For this reason, the traffic jam information provided to the navigation system 10 is highly real-time information.

  Next, the navigation system 10 that provides driving assistance using the received traffic jam information will be described. As shown in FIG. 2, the navigation system 10 includes a control device 11 and a geographic information storage unit 12. The control device 11 stores a traffic situation guidance program and corresponds to guidance point detection means, first vehicle train detection means, second vehicle train detection means, guidance control means, traffic jam information acquisition means, and navigation device. .

  The control device 11 acquires various signals from the position detection sensor 14 provided in the vehicle C, and calculates the vehicle position. The position detection sensor 14 includes a GPS receiver 15, a vehicle speed sensor 16, a gyro 17 and the like.

  Further, the control device 11 performs route search and map drawing using the data stored in the geographic information storage unit 12. The geographic information storage unit 12 stores route data 20 and map drawing data 21. The route data 20 includes link data indicating the connection state of links indicating roads, link costs assigned to the links, and the like. When the destination is input, the control device 11 searches for a recommended route from the current location to the destination under a plurality of conditions using the link cost.

  The map drawing data 21 is data for displaying a map screen 35 on a touch panel display (hereinafter simply referred to as a display 30). The map drawing data 21 includes road data such as the number of lanes of each road, the traveling direction of each lane, road shape data, a branch point on the road, a facility entry point, and the like. It corresponds. The road shape data is data representing the curve shape of the road. The control device 11 compares the travel locus of the host vehicle with the road shape data, and specifies the host vehicle position on the road. A branch point is a point connected to another road or lane such as an intersection or an interchange, and a facility entry point is a point for entering a facility along the road. Although the road data is a part of the map drawing data, the road data may be held independently or included in the route data 20.

Further, the control device 11 outputs a guidance voice from the speaker 31 using voice data (not shown). Further, the navigation system 10 is connected to the communication device 13. The communication device 13 is a device such as a wireless communication device or a mobile phone owned by a user. The control device 11 periodically acquires traffic jam information from the information providing server 2 via the communication device 13. Then, using the acquired traffic jam information, it is determined whether there is a traffic jam section ahead of the traveling direction of the host vehicle.
(Processing procedure)
Next, a processing procedure when the host vehicle approaches an intersection point or facility entry point scheduled to turn right or left will be described. A point where route guidance is required, such as an intersection point where the host vehicle is to turn right or left, or a facility entry point is referred to as a “guidance point”.

  This process is executed, for example, when a destination is set. Specifically, when the destination is set, the control device 11 searches for a recommended route from the current location of the host vehicle to the destination using the route data 20 under various conditions and displays the recommended route on the display 30. When a plurality of recommended routes are displayed, the user selects one of these routes as a guide route.

In addition, at least while this process is being executed, the control device 11 acquires the traffic information having high real-time characteristics transmitted at intervals of 1 minute or the like.
When the guide route is set, the control device 11 acquires the set guide route as link data. Then, as shown in FIG. 3, by comparing the vehicle position and the guide route, it is determined whether or not the guide point is in front of the traveling direction and within Xm (for example, 300 m) from the vehicle position. Judgment is made (step S1).

  If it is determined that the guide point P1 does not exist (NO in step S1), the process of step S1 is repeated until the guide point P1 is detected within Xm ahead of the traveling direction. If the destination or route is forcibly changed by a user operation during the process, the process starts from step S1.

  If it is determined that the guidance point is within Xm ahead (YES in step S1), it is determined whether or not there is a target point where a train may occur between the guidance point and the vehicle position. A determination is made based on the road data (step S2). The target points described above are a branch point located between the guide point and the vehicle position or a facility entry point for entering the facility. If it is determined that there is no target point between the guide point and the vehicle position (NO in step S2), the process returns to step S1.

  On the other hand, as shown in FIG. 5, when an intersection P5 exists between the guide point P1 where the host vehicle C1 is scheduled to make a right turn and the host vehicle position, the intersection P5 is regarded as the target point P2, and the above-mentioned in step S2 It is determined that target point P2 exists (YES in step S2). Then, based on the previously acquired guide route, a planned travel lane of the host vehicle C1 between the guide point P1 and the target point P2 is acquired (step S3). For example, when the host vehicle C1 is going straight on the intersection P5 and turning right at the guidance point P1, the vehicle C1 travels on the right turn lane 50 between the guidance point P1 and the intersection P5. Scheduled lane.

  Next, it is determined using the traffic jam information whether or not there is a vehicle train L2 (second vehicle train) continuing from the target point P2 (step S4). Specifically, it is determined whether or not there is a train L2 that continues from the target point P2 on the lane that is between the target point P2 and the vehicle position and that is continuous with the planned travel lane. For example, as shown in FIG. 5, when there is an intersection P5 between the guide point P1 scheduled for a right turn and the vehicle position, it is on the right turn lane 51 that is continuous with the planned lane (the right turn lane 50), It is determined whether or not there is a train L2 that continues from the intersection P5 that is the target point P2, using the traffic jam occurrence lane, the head position, and the like included in the traffic jam information. Further, for example, as shown in FIG. 6, when there is a facility entry point P6 between the guide point P1 scheduled to turn left and the vehicle position, the facility entry point is located on the planned travel lane (left turn lane 52 in FIG. 6). It is determined whether or not there is a vehicle line L2 that continues from P6 using the traffic jam occurrence lane, the head position, and the like.

If it is determined that there is no vehicle train L2 continuing from the target point P2 (NO in step S4), there is no vehicle train to be avoided, and guidance is provided that the vehicle should move to the planned travel lane (step S9).
For example, when the host vehicle C1 is going to go straight on the intersection P5 and turn right at the guide point P1, the host vehicle C1 is guided to the right turn lane 50. At this time, the control device 11 outputs a guidance voice from the speaker 31 such as “It is about 300 m ahead right. Please drive on the right turn lane”.

  If it is determined that there is a vehicle train L2 that continues from the target point P2 (YES in step S4), it is determined whether there is a vehicle train L1 (first vehicle train) that continues from the guidance point P1 (step S5). For example, the presence / absence of the vehicle train L1 on the planned travel lane from the guidance point P1 is determined using the traffic jam occurrence lane, the head position, etc. included in the traffic jam information.

  For example, in FIG. 5, it is determined whether or not there is a train L1 that is on the right turn lane 50 and continues from the guide point P1. In FIG. 6, it is determined whether or not there is a train L1 on the lane 52 where the facility entry point P6 is located and continuing from the guide point P1.

  For example, if it is determined that there is no vehicle train L1 that continues from the guidance point P1 (NO in step S5), after avoiding the front vehicle train L2, guidance is provided that the vehicle should move to the planned travel lane (step S10). At this time, the control device 11 determines a travel lane in which the host vehicle C1 is traveling based on road data or the like. If the driving lane is a lane that can avoid the vehicle lane L2, a guidance voice such as “Please keep the current lane and change the lane to the right turn lane after exceeding the traffic jam” may be given. . When the traveling lane is the same as the lane in which the vehicle train L2 exists, it is determined whether there is an adjacent lane adjacent to the traveling lane based on the road data. If there is an adjacent lane, that lane Whether or not there is a train line is determined based on the traffic jam information. When there is an adjacent lane where there is no train, the control device 11 outputs a guidance voice from the speaker 31 such as “It is approximately 300m ahead and turn to the right lane after avoiding traffic congestion”. And give guidance to enter the lane. When such a lane does not exist, for example, guidance is provided so as to continue traveling in the current traveling lane.

When it is determined that there is a train L1 that continues from the guidance point P1 (YES in step S5), a traffic jam detection process is performed to detect the state of the train L1 (step S6).
This traffic condition detection process will be described with reference to FIG. First, the control device 11 acquires the tail position of the vehicle train L1 that continues from the guidance point P1 using the traffic jam information (step S6-1). For example, in FIG. 5, the position of the vehicle C that is arranged at the rearmost among the vehicle train L1 that continues from the guide point P1 is acquired as the end position E1.

  When the tail position E1 is acquired, the length L from the tail position E1 to the head position of the second vehicle train L2 is calculated (step S6-2). When the target point P2 is the intersection P5, as shown in FIG. 5, the length L from the end position E1 to the start position H1 is a length including the width of the intersection P5. When the head position is specified, it may be specified using the coordinates of the head position of the vehicle train included in the traffic jam information, or the head position when the vehicle train occurs (for example, the target point P2). Etc.) may be registered in advance and specified using the position.

  After calculating the length L, the control device 11 determines whether or not the length L between the vehicle train L1 and the vehicle train L2 is greater than or equal to a predetermined length (step S6-3). As shown in FIG. 5, when the target point P2 is an intersection P5, the predetermined length is a length obtained by adding the length (for example, 10 m) that the host vehicle C1 can enter and the width of the intersection. Is set. As shown in FIG. 6, when the target point P2 is the facility entry point P6, the above-mentioned length L does not include the intersection P5, so the predetermined length is set to a length that allows the host vehicle C1 to enter. ing.

For example, as shown in FIG. 5, when the target point P2 is the intersection P5, the length L from the end position E1 to the start position H1 is a predetermined length obtained by adding the width of the intersection and the length that the vehicle C1 can enter. When it is less than (NO in step S6-3), it is specified that there is no section (entranceable section) where the host vehicle C1 can enter before the vehicle train L1 (step S6-5). At this time, for example, a flag indicating the presence / absence of an enterable section is set to “0 (OFF)”. In this case, there is a possibility that the front vehicle train L2 is a vehicle train that continues from the rear vehicle train L1, and that each vehicle train L1, L2 is continuous. In such a case, even if the host vehicle C1 tries to enter the planned travel lane while avoiding the front vehicle train L2, it cannot line up behind the vehicle train.

  On the other hand, as shown in FIG. 6, when the length L from the end position E1 to the start position H1 is equal to or longer than a predetermined length that the host vehicle can enter (YES in step S6-3), the host vehicle C1 It is specified that there is an enterable section that can be entered (step S6-4). At this time, for example, a flag indicating the presence / absence of an enterable section is set to “1 (ON)”. In such a case, for example, the front vehicle train L2 is a vehicle train waiting for a right turn at the intersection P5, and the rear vehicle train L1 and the front vehicle train L2 are estimated to be discontinuous. In this case, the host vehicle C1 can line up behind the vehicle train after entering the travel planned lane while avoiding the front vehicle train L2. When the traffic jam condition detection process is thus completed, the process returns to step S7 shown in FIG.

  In step S <b> 7, it is determined whether or not there is an accessible section based on the detection result of the traffic jam condition detection process. For example, the presence / absence of an accessible section is determined based on the value of the flag set in the traffic jam condition detection process. If it is determined that there is an enterable section (YES in step S7), guidance is provided to avoid the front vehicle train L2 and move to the end of the rear vehicle train L1 continuing from the guide point P1 (step S8). The process for performing guidance for avoiding the vehicle train L2 is performed in the same manner as in step S10 described above. Also, as a guide to move to the end of the lane L1, for example, from the speaker 31, "It is about 300m ahead right. After avoiding the traffic jam in the foreground, change the lane to the right turn lane before the traffic jam in the back. You may output a guidance voice such as “Please”. Alternatively, as shown in FIG. 7, the accessible section is displayed on the map screen 35 with a mark 36 or the like. The mark 36 indicates a state where there is a space where the host vehicle C1 can enter. For example, the mark 36 is displayed in front of the host vehicle position 38 and between the traffic congestion marks 37.

  In this way, when there is an approachable section at the end of the rear vehicle train L1, guidance for avoiding the front vehicle train L2 is performed in advance, thereby urging the vehicle to enter the travelable section and guiding the host vehicle C1. Unnecessary waiting time due to lining up in a train that continues from a non-point can be eliminated.

  On the other hand, if it is determined in step S7 that there is no accessible section (NO in step S7), guidance is provided to the effect that the vehicle should move to the end of the preceding vehicle train L2 (step S11). For example, a guidance voice such as “It is 300 m ahead right direction. Please change lane to the right turn lane by the end of the traffic jam” or the like is output from the speaker 31 or a guidance display is displayed on the display 30.

  As described above, when there is no approachable section behind the vehicle train L1, the vehicle is prompted to line up with the front vehicle train L2. A situation where there is no space for entry can be prevented.

  If guidance is performed, the process returns to step S1 and the above-described processing is repeated. That is, until it passes through the guidance point P1, it is repeatedly determined whether or not the vehicle train L2 exists before the guidance point P1. After passing through the guide point P1, it waits for the next guide point P1 to be included within the forward Xm. When the destination is reached, the process is terminated.

Thus, the driver does not know whether or not the front vehicle row L2 is a vehicle row that continues from the rear vehicle row L1, or whether there is an accessible section behind the vehicle row L1. In addition, the control device 11 determines whether or not there is an enterable section behind the train L1, and performs guidance according to the presence or absence of the enterable section. For this reason, even when driving on a busy road, smooth driving can be supported.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the control device 11 detects the guidance point P1 where the host vehicle C1 should change the course. Further, it is determined whether or not there is a vehicle train L1 that continues from the guidance point P1, and it is determined whether or not there is a vehicle train L2 between the vehicle train L1 and the vehicle position. Further, when there is a vehicle train L1 and a vehicle train L2, it is determined whether or not there is an enterable section where the host vehicle C1 can enter between the first train row L1 and the host vehicle position. If there is a section, the vehicle C1 is instructed to enter before the first vehicle train L1. For this reason, even when there are a plurality of vehicle trains ahead of the host vehicle position, it is possible to provide appropriate guidance to the host vehicle C1 and support smooth running of the host vehicle.

  (2) In the above embodiment, the control device 11 acquires traffic jam information via the communication device 13. Further, using the traffic jam information, the tail position E1 of the first vehicle train L1 and the head position H1 of the second vehicle train L2 are acquired, and the length between the tail position E1 and the head position H1 is a predetermined length or more. It is determined whether or not. When the length L is equal to or longer than the predetermined length, it is determined that there is a section in which the host vehicle C1 can enter before the vehicle train L1. For this reason, it is possible to accurately determine the presence or absence of an enterable section.

  (3) In the above embodiment, when it is determined that there is no section where the host vehicle C1 can enter before the first vehicle row L1, the vehicle should enter the vehicle before the end of the second vehicle row L2. Give guidance. For this reason, even when the vehicle train L2 is continuous from the vehicle train L1, accurate guidance can be provided to the host vehicle C1.

In addition, you may change this embodiment as follows.
In the above embodiment, the target point P2 is detected and it is determined whether or not there is a vehicle train L2 continuing from the target point P2. However, the vehicle train L1 and the own vehicle are not considered without considering the target point P2. It may be determined based on the traffic jam information whether or not the head position of the vehicle train is between the positions. That is, it is determined whether there is another head position behind the head position of the vehicle row L1 and ahead of the own vehicle position in the traveling direction. Then, when there is a first vehicle train L1 that continues from the guide point P1 and there is a head position of the vehicle train between the vehicle train L1 and the host vehicle position, the end position E1 of the first vehicle train L1 and It is determined whether or not the length from the head position is a predetermined length or more. When the length is equal to or longer than the predetermined length, it is determined that there is an accessible section behind the first vehicle train L1, and guidance such as guidance to the end of the first vehicle train is performed. In this way, it is possible to determine whether or not there are a plurality of vehicle trains without detecting the target point P2.

  In step S8 and step S10, when the host vehicle C1 avoids the second front train L2 and passes through the target point P2, guidance is given to the effect that the vehicle should enter a scheduled driving lane such as a right turn lane. It may be. Thereby, since guidance is performed both at the time of passing Xm in front of the guide point P1 and at the time of passing the target point P2, smoother travel can be supported.

  -In above-mentioned embodiment, although the navigation apparatus was actualized in the navigation system 10 mounted in the own vehicle C1, you may actualize in another portable terminal. Further, the navigation device may be embodied in an external server connected to the navigation system 10. In this case, the external server determines the presence / absence of a train line, the presence / absence of an accessible section, and a guidance method, and the navigation system 10 performs guidance using the designated guidance method.

Schematic of a traffic information provision system. The block diagram of a navigation system. The flowchart which shows the process sequence of 1st Embodiment. The flowchart of a traffic condition detection process. The schematic diagram of a guidance point and an intersection. The schematic diagram of a guidance point and a facility approach point. Explanatory drawing of a guidance screen. A conventional view at an intersection.

Explanation of symbols

  11: guide point detection means, first vehicle train detection means, second vehicle train detection means, guidance control means, traffic jam information acquisition means and control device as navigation device, C1 ... own vehicle, E1 ... tail position, H1 ... first position, L1 ... first vehicle train, L2 ... second vehicle train, P1 ... guide point.

Claims (5)

Guidance point detection means for detecting a guidance point at which the vehicle is to change course,
First vehicle train detecting means for determining whether or not there is a first vehicle train continuing from the guide point;
Second vehicle train detection means for determining whether or not a second vehicle train exists between the first vehicle train and the host vehicle position;
Whether or not there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train when the first vehicle train and the second vehicle train are present And a guidance control means for guiding that the vehicle should enter before the first vehicle train when it is determined that the section exists. The navigation device according to claim 1, wherein
It further comprises traffic information acquisition means for acquiring traffic information from outside,
The guidance control means includes
The end position of the first vehicle train and the start position of the second train train are acquired using the traffic jam information, and the length from the end position to the start position is a predetermined length or more. If the length is equal to or longer than a predetermined length, it is determined that there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train. A featured navigation device. The navigation device according to claim 1, wherein
The guidance control means includes
When it is determined that there is no section in which the host vehicle can enter between the first vehicle train and the second vehicle train, the vehicle enters the front of the second vehicle train. A navigation device characterized by guiding the power. In the traffic situation guidance method using the control means that performs guidance according to the traffic situation,
The control means is
While detecting the guidance point where the own vehicle should change the course, and determining whether there is a first vehicle train that continues from the guidance point,
Determining whether there is a second vehicle train between the first vehicle train and the vehicle position;
Whether or not there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train when the first vehicle train and the second vehicle train are present , And when it is determined that the section exists, the traffic condition guidance method is characterized in that guidance is provided to enter before the first vehicle train. In a traffic situation guidance program that uses control means to provide guidance according to the traffic situation,
The control means;
Guidance point detection means for detecting a guidance point at which the vehicle is to change course,
First vehicle train detecting means for determining whether or not there is a first vehicle train continuing from the guide point;
Second vehicle train detection means for determining whether or not a second vehicle train exists between the first vehicle train and the host vehicle position;
Whether or not there is a section in which the host vehicle can enter between the first vehicle train and the second vehicle train when the first vehicle train and the second vehicle train are present And a traffic condition guidance program that functions as guidance control means for guiding that the vehicle should enter before the first vehicle train when it is determined that the section exists.

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