JP2004318660A - Traffic information exchange system and method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traffic information exchange system capable of obtaining information about a traffic flow of a road except a trunk road not installed with a vehicle sensor or a roadside sensor, or not allowing the notification of traffic jam information or a travel time of a vehicle. <P>SOLUTION: In this traffic information exchange system, vehicle information that is all or a plurality of items of speed information about the vehicle, operation information showing a speed history, position information about the vehicle, movement direction information showing a movement direction of the vehicle from a position history, and traffic information including passage time of a prescribed spot and a travel time between prescribed spots are exchanged with the other vehicles by an intercommunication function, the surrounding traffic flow is estimated by the vehicle information collected from one or more other vehicles, and a traffic jam situation of the road and the travel time are found. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention transmits and receives vehicle information, which is data of traffic conditions related to the traveling of each vehicle, between vehicles traveling on a road, and estimates traffic flow, and congestion status and travel time based on the received vehicle information. It relates to a traffic information exchange system to be calculated.
[0002]
[Prior art]
Conventionally, roadside sensors such as a vehicle detector, an automatic vehicle recognizer (automatic vehicle number reader), and a vehicle information collector (VICS (road traffic information communication system) optical beacon) are installed on the roadside of a road. Based on the information obtained from the roadside sensors, traffic jam information and travel time of vehicles are measured or estimated.
The traffic congestion information and the travel time of the vehicle are displayed on a display device on the road, and are notified to the passing vehicle using FM multiplex broadcasting or VICS using radio waves and optical beacons.
[0003]
Patent Document 1 also describes, like VICS,
・ Information collection function to systematically collect road traffic information ・ Information provision function to process and edit collected information information ・ Information provision function to transmit processed information to OBE ・ User can use OBE An information utilization function that utilizes information is described.
[0004]
[Patent Document 1]
JP-A-11-328581
[Problems to be solved by the invention]
However, according to the above-described conventional example, it is necessary to install a roadside sensor such as a vehicle detector on the roadside, and it is difficult to install it on a road other than the main road due to the relationship between traffic volume and funds required for installation. .
For this reason, at this time, there are many roads on which no vehicle sensor or the like is installed on the road side, and it is not possible to accurately know the traffic congestion state and the travel time of vehicles on most of the living roads.
Similarly, for a vehicle traveling on a road on which a road display device, FM multiplex broadcasting, and radio / optical beacons are not available, traffic information measured or estimated at the traffic information center and travel time of the vehicle can be notified. Can not.
[0006]
The present invention has been made in view of such circumstances, and has no vehicle sensor or roadside sensor installed, or has a traffic flow on a road other than a main road on which traffic information or travel time of a vehicle cannot be notified. Provide a traffic information exchange system that can obtain information on traffic information.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the traffic information exchange system of the present invention comprises: speed information of a vehicle, operation information indicating a speed history, position information of the vehicle, moving direction information indicating a moving direction of the vehicle from the position history, a predetermined point. The vehicle information, which is all or a plurality of items of traffic information including travel time between predetermined points and travel time between predetermined points, is exchanged with another vehicle by an intercommunication function, and collected from another vehicle or vehicles. Thus, the surrounding traffic flow is estimated, and the traffic congestion state and travel time of the road are obtained.
[0008]
The traffic information exchange system of the present invention has a relay function of temporarily storing and transmitting vehicle information transmitted by an oncoming vehicle traveling in the opposite lane in a storage unit, and vehicles traveling ahead in the same lane. Receiving vehicle information transmitted by an oncoming vehicle and estimating the traffic flow at the destination based on the received vehicle information from a plurality of preceding vehicles, and obtaining traffic congestion conditions and travel time on the road. It is characterized by.
[0009]
The traffic information exchange system of the present invention has a relay function of temporarily storing and transmitting vehicle information transmitted by a preceding vehicle traveling in the same lane in a storage unit, and a plurality of preceding vehicles traveling in the same lane in time series. Vehicle information transmitted by a vehicle is received, and based on the received vehicle information from a plurality of preceding vehicles, a traffic flow of a travel destination is estimated, and traffic congestion on a road and travel time are obtained.
[0010]
The traffic information exchange method of the present invention includes: speed information of a vehicle, operation information indicating a speed history, position information of a vehicle, moving direction information indicating a moving direction of the vehicle from the position history, a passing time of a predetermined point, and a time interval between a predetermined point. Acquiring traffic information including a travel time of the vehicle by a clock, a sensor, and a position detecting means; exchanging vehicle information, which is all or a plurality of items of the traffic information, with another vehicle by an interactive communication function; A traffic condition calculating step of reading the vehicle information from the storage unit, estimating a surrounding traffic flow by using the vehicle information collected from another vehicle or a plurality of vehicles, and obtaining a traffic congestion condition and a travel time of the road; It is characterized by having.
[0011]
The traffic information exchange program according to the present invention includes speed information of a vehicle, operation information indicating a speed history, position information of the vehicle, moving direction information indicating a moving direction of the vehicle from the position history, a passing time of a predetermined point, and a time interval between the predetermined points. A process of acquiring traffic information including travel time of the vehicle by a clock, a sensor, and position detecting means, and exchanging vehicle information, which is all or a plurality of items of the traffic information, with another vehicle by an intercommunication function, and storing the traffic information in a storage unit. The storing process and the traffic condition calculation means read the vehicle information from the storage unit, estimate the surrounding traffic flow based on the vehicle information collected from one or more other vehicles, and calculate the traffic congestion state and travel time of the road. It is a computer-executable program having the required arithmetic processing.
The recording medium of the present invention is a computer-readable recording medium on which the traffic information exchange program is recorded.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of a traffic information exchange system according to an embodiment of the present invention.
In FIG. 1, a traffic information exchange system 1 is mounted for each vehicle (A, B, C, D, E, F,...), And includes a control unit 2, a communication unit 3, an information storage unit 4, and a traffic condition. It has a calculation unit 5 and a sensor unit 6.
[0013]
The communication unit 3 transmits and receives vehicle information directly between vehicles (vehicle-to-vehicle communication) and through relay of another vehicle of a third party (inter-communication function).
The control unit 2 causes the information storage unit 4 to store traffic information measured by the own vehicle or vehicle information transmitted from another vehicle.
The traffic condition calculation unit 5 estimates the traffic flow based on the information stored in the information storage unit 4 and calculates the traffic congestion state and travel time of the road.
The sensor section 6 detects a vehicle speed sensor, a position detecting means such as a GPS (Global Pointing System), a clocking means including a clock, and another vehicle when another vehicle approaches within a predetermined range (for example, within 10). A means for detecting traffic information, such as another vehicle detecting means, is provided, and outputs a measurement result to the control unit 2.
[0014]
Here, the vehicle information includes speed information of the vehicle measured by a vehicle speed sensor, operation information indicating speed history which is a speed history at each point and time, position information of the vehicle by position detecting means such as GPS, and position information of the vehicle. All or a combination of a plurality of items of traffic information including travel direction information indicating the travel direction of a vehicle, passing time of a predetermined point by a mounted clock, and travel time between predetermined points (travel time between points) Is shown.
The traffic flow includes travel time from a departure point (starting point) to an arrival point, delay time with respect to a scheduled time, stop time due to traffic congestion, traffic congestion length (congestion information) of the length of a vehicle connected in traffic congestion, and the like. Indicates the information necessary to grasp the traffic situation including the item.
Further, the vehicle information includes outside air temperature information (measured by a temperature sensor mounted on the vehicle) used for predicting a frozen state of a road surface, and wiper operation information (wiper operation information) used for predicting weather conditions such as rainfall or snowfall. Road surface and weather information can also be used for estimating the traffic flow by detecting the ON / OFF of the operation switch.
For example, when freezing, rainfall, snowfall, and the like are detected, the traffic condition calculation unit 5 determines a predetermined coefficient α (> 1) that is proportional to the temperature and the operating speed of the wiper for each piece of information of the calculated traffic flow. , And the estimated values such as delay time and congestion length are corrected and output as numerical values corresponding to the weather.
[0015]
Each of the traffic information is measured by the control of the control unit 2 and stored in the information storage unit 4 in correspondence with the time and the position information.
At this time, the control unit 2 extracts, from the received vehicle information, only the vehicle information related to the traveling direction, that is, the vehicle information on the road to be traveled, based on the position information, and causes the information storage unit 4 to store the extracted vehicle information. It may be.
Further, the control unit 2 temporarily stores the vehicle, that is, deletes the vehicle information of the corresponding time from the information storage unit 4 after a predetermined time (for example, one hour) has elapsed from the stored time.
[0016]
The traffic condition calculation unit 5 confirms, for example, the information of the traveling destination vehicle (preceding vehicle) based on the traveling direction information, and, based on the input vehicle information, the preceding vehicle information corresponds to the position information and the time information. Statistical processing of vehicle speed information, operation information, and travel time, that is, searching the database corresponding to the speed information, operation information, and travel time of the preceding vehicle, and extracting each item of the traffic flow, Is estimated.
The database stores data of each item of traffic flow corresponding to the speed information, operation information, and travel time of the preceding vehicle in the position information and time information as past measured values.
[0017]
<First embodiment>
With reference to FIGS. 1 and 2, an operation example of the traffic information exchange system according to the first embodiment of the present invention will be described. FIG. 2 is a conceptual diagram illustrating an operation example of the traffic information exchange system according to the first embodiment.
As shown in FIG. 2, when each of the vehicles A and B passes each of the vehicles C, D, and E, which are oncoming vehicles traveling on opposite lanes, the communication unit 3 receives vehicle information transmitted from each vehicle. The vehicle information received by the control unit 2 is stored in the traffic information storage unit 4 in time series.
[0018]
Conversely, when each of the vehicles C, D, and E passes each of the oncoming vehicles A and B traveling in the opposite lane, the communication unit 3 receives the vehicle information transmitted from each vehicle, and the control unit 2 Are stored in the traffic information storage unit 4 in chronological order.
Here, the detection of the timing when each vehicle passes the other vehicle is detected by the control unit 2 passing the vehicle traveling in the opposite lane (the other vehicle approaches a predetermined range, for example, within a range of 100 m of the communication unit 3). The time point is determined when the communication by the communication unit 3 becomes possible (for example, the communicable range is 100 m).
[0019]
Then, the traffic condition calculation unit 5 in each vehicle travels in the same lane corresponding to the position information and the time information in the vehicle information input from the oncoming vehicle traveling in the opposite lane, as described above. Statistical processing of the speed information, operation information, and travel time of the preceding vehicle, that is, searching the database corresponding to the speed information, operation information, and travel time of the preceding vehicle, to extract each item of traffic flow, Estimate traffic flow.
Here, vehicles traveling opposite to each other exchange vehicle information, and the vehicle information of the vehicle traveling ahead is relayed by the oncoming vehicle traveling in the opposite lane, and the vehicle traveling behind runs ahead. The following vehicle has been notified.
[0020]
<Second embodiment>
An operation example of the traffic information exchange system according to the second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a conceptual diagram showing an operation example of the traffic information exchange system according to the second embodiment.
As shown in FIG. 3, in the vehicle D, the control unit 2 detects that the vehicle A has approached a range where the communication of the communication unit 3 is possible (a possible communication range is, for example, 100 m), and It is detected whether or not the vehicle A, which is the oncoming vehicle traveling in the opposite lane, has approached within a predetermined distance (for example, within 100 m) based on the traveling direction information in the vehicle information.
[0021]
When the vehicle D passes the oncoming vehicle A traveling on the opposite lane, the vehicle D transmits the vehicle information transmitted by the vehicles B and C, which are the preceding vehicles traveling on the same lane, in time series to the respective oncoming vehicles. It is relayed and received from the vehicle A.
At this time, in the vehicle A, the communication unit 3 receives the vehicle information transmitted by the vehicle traveling in the same lane as the vehicle D, that is, the vehicle (single or plural) preceding the vehicle D, for example, the vehicles B and C.
[0022]
Then, the control unit 2 of the vehicle A detects that the vehicles B and C, which are the preceding vehicles of the vehicle D, are the oncoming vehicles whose traveling directions are opposite from each other based on the moving direction information. Instead of the traffic information storage unit 4, the storage unit in the communication unit 3 temporarily (for example, about 30 minutes as a predetermined storage time) temporarily stores the storage unit, and the control unit 2 passes the vehicle traveling on the opposite lane (others). When the sensor unit 6 detects that the vehicle has approached a predetermined range, for example, within a range of 100, the control unit 2 transmits the vehicle information stored in the storage unit of the communication unit 3 to the passing vehicle, that is, the vehicle D. Transmission, that is, relaying and transmitting the vehicle information.
When the control unit 3 detects that the storage time has elapsed since the storage, the control unit 3 deletes the vehicle information of the corresponding vehicle stored in the storage unit in the communication unit 3.
[0023]
Conversely, when vehicle A passes each of vehicles B, C, and D, which are oncoming vehicles traveling in opposite lanes, vehicle A transmits information transmitted by a preceding vehicle traveling in the same lane as the own vehicle in time series. It is relayed and received from vehicles B, C, and D, which are oncoming vehicles.
At this time, in each of the vehicles B, C, and D, the communication unit 3 receives the vehicle information transmitted from the vehicle traveling in the same lane as the vehicle A, that is, the vehicle (s) preceding the vehicle A.
As for the other processes, the same processes as those of the vehicle A described above are performed in each of the vehicles B, C, and D.
Therefore, each of the vehicles A, B, C, D, and E exchanges the vehicle information of the preceding vehicle traveling on the same lane with each oncoming vehicle traveling on the opposite lane.
[0024]
The traffic condition calculation unit 5 confirms that the information is the information of the vehicle (preceding vehicle) of the travel destination based on the moving direction information in the vehicle information of the preceding vehicle that is relayed and input to the oncoming vehicle, and the input vehicle information. As described above, in the (one or more vehicles), statistical processing of the speed information of the preceding vehicle, the operation information, and the travel time, that is, the speed information of the preceding vehicle, the operation The traffic flow is estimated by extracting each item of the traffic flow by searching the database corresponding to the information and the travel time.
[0025]
<Third embodiment>
An operation example of the traffic information exchange system according to the third embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a conceptual diagram illustrating an operation example of the traffic information exchange system according to the third embodiment.
As shown in FIG. 4, in the vehicle A, the control unit 2 detects that the vehicle has approached a range where communication by the communication unit 3 is possible (a communication possible range is, for example, 100 m), and Based on the moving direction information in the vehicle information, it is detected whether or not the vehicle B, which is a following vehicle traveling in the same lane, has approached within a predetermined distance (for example, within 100 m).
At this time, when the control unit 2 of the vehicle A detects that the vehicle B approaches within a predetermined range, the sensor information 6 obtained by the sensor unit 6 of the vehicle A and the vehicle information stored in the traffic information storage unit 4 is The data is transmitted to the vehicle B via the communication unit 3.
[0026]
Similarly, also in the vehicle B, the control unit 2 uses the sensor unit 6 to detect whether or not the vehicle A, which is a preceding vehicle traveling in the same lane, has approached within a predetermined distance (for example, within 100 m).
When the control unit 2 of the vehicle B detects that the vehicle A has approached the predetermined range, the sensor unit 6 of the vehicle B acquires the vehicle information stored in the traffic information storage unit 4 and transmits the vehicle information. The data is transmitted to the vehicle A via the unit 3.
As described above, the traffic information exchange systems 1 of the vehicles A and B exchange vehicle information stored in their respective traffic information storage systems.
[0027]
In the vehicle B, the control unit 2 uses the sensor unit 6 to detect whether or not the vehicle C, which is a following vehicle traveling in the same lane, approaches a predetermined distance (for example, within 100 m).
At this time, when the control unit 2 of the vehicle B detects that the vehicle C has approached the predetermined range, the vehicle information acquired by the sensor unit 6 of the vehicle B and stored in the traffic information storage unit 4 includes: The vehicle information of the vehicle A transmitted from the vehicle A and temporarily stored in the traffic information storage unit 4 is transmitted to the vehicle C via the communication unit 3.
That is, the vehicle information transmitted by the vehicle A is relayed by the vehicle B and transmitted to the vehicle C.
[0028]
As described above, since the vehicle information of each vehicle is relayed or transmitted directly from the preceding vehicle to the succeeding vehicle, the vehicle D includes a plurality (or singular) of the vehicles A, B, and C. Vehicle information obtained by the vehicle can be obtained.
Then, the control unit 2 of the vehicle D causes the traffic information storage unit 4 to store the vehicle information of the vehicles A, B, and C received by the communication unit 3.
[0029]
Accordingly, the traffic situation calculation unit 5 of the vehicle D uses the traveling direction information in the vehicle information of each preceding vehicle, which is sequentially relayed and input by the plurality of preceding vehicles in the order of the distance, to the vehicle at the traveling destination (the preceding vehicle). ), And in the input vehicle information (of one or more vehicles), the speed information and the operation information of the preceding vehicle correspond to the position information and the time information as described above. The traffic flow is estimated by extracting each item of the traffic flow by performing a statistical process of the travel time, that is, searching the database corresponding to the speed information, the operation information, and the travel time of the preceding vehicle.
[0030]
<Fourth embodiment>
An operation example of the traffic information exchange system according to the fourth embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a conceptual diagram showing an operation example of the traffic information exchange system according to the fourth embodiment.
The fourth embodiment has a function of relaying vehicle information of a preceding vehicle from an oncoming vehicle in the second embodiment, and a distance from a plurality of preceding vehicles from a preceding vehicle in the third embodiment. A configuration in which each vehicle exchanges the vehicle information of its own vehicle stored in each traffic information storage unit 4 with the vehicle information of another vehicle obtained by transmission, which combines both of the functions obtained by sequentially relaying. It has become.
[0031]
For example, the communication unit of the vehicle C communicates the vehicle information of the vehicles A and B, which are the preceding vehicles, and the vehicle information of the preceding vehicle further ahead of the vehicle A obtained by relaying the oncoming vehicles H, G, F. 3, the control unit 2 temporarily stores the vehicle information in the information storage unit 4.
[0032]
Accordingly, the traffic condition calculation unit 5 of the vehicle C uses the traveling direction information in the vehicle information of each preceding vehicle, which is sequentially relayed and input by the plurality of preceding vehicles in the order of the distances, to the vehicle (the preceding vehicle). ), And in the input vehicle information, as described above, corresponding to the position information and the time information, statistical processing of the speed information, operation information, and travel time of the preceding vehicle, that is, The traffic flow is estimated by extracting each item of the traffic flow by searching the database corresponding to the speed information, the operation information, and the travel time of the preceding vehicle.
[0033]
The traffic information exchange systems according to the first to fourth embodiments are not provided with a vehicle sensor or a roadside sensor, or are not provided on roads other than the main road where traffic information center cannot notify traffic jam information and vehicle travel time. On the road, vehicles traveling on the road mutually exchange vehicle information of the preceding vehicle stored in the information storage unit, and based on the vehicle information of the plurality of exchanged vehicles, the traffic condition calculation unit 5 Calculates the traffic flow, so that it is possible for each vehicle to obtain information on the traffic flow such as the traffic congestion state and the travel time of the vehicle at the required positions and times.
[0034]
<Fifth embodiment>
In addition, although the traffic information exchange system 1 exists only in each vehicle in claims 1 to 4, with this configuration, in a vehicle in which the traffic information exchange system 1 of the present invention is not mounted, Traffic information is not available.
For this reason, as shown in FIG. 5, a vehicle information collector is provided at a predetermined location on each road, and the own vehicle and the other vehicle stored in the information storage unit 4 of each vehicle at the traffic information center S. The vehicle information is transmitted through the vehicle information collector, and the traffic condition calculation unit 5 (described above) provided in the traffic information center S estimates the traffic flow. A vehicle without the traffic information exchange system 1 may be provided with traffic flow information via a radio, the Internet, or the like, and may be configured as a traffic information providing system including the traffic information center S.
[0035]
Alternatively, the communication unit 3 of each vehicle may directly notify the traffic information center S of the vehicle information by wireless communication.
As a result, the traffic information providing system of the fifth embodiment can also provide information on traffic flow on a road other than a highway, on which a vehicle sensor or a roadside sensor is not installed, even for a vehicle not equipped with the traffic information exchange system 1. It is possible to obtain.
[0036]
Further, a program for realizing the traffic information exchange system 1 in FIG. 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed, thereby executing construction management. May go.
Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a general medium such as a flexible disk, a magneto-optical disk, a ROM, a CD-ROM, and a storage device such as a hard disk built in a computer system.
[0037]
Further, a “computer-readable recording medium” refers to a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line, which dynamically holds the program for a short time. In this case, it is also assumed that a program that holds a program for a certain period of time, such as a volatile memory in a computer system serving as a server or a client in that case, is included.
Further, the above-mentioned program may be for realizing a part of the functions described above, or may be for realizing the above-mentioned functions in combination with a program already recorded in a computer system. .
[0038]
As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes a design and the like without departing from the gist of the present invention.
[0039]
【The invention's effect】
As described above, according to the traffic information exchange system of the present invention, there is no vehicle sensor or roadside sensor installed, or the traffic information center cannot notify traffic congestion information or travel time of a vehicle on a main road. On roads other than, vehicles traveling on this road exchange vehicle information with each other, and the traffic condition calculation unit calculates traffic flow based on the exchanged vehicle information (of one or more vehicles). It is possible to obtain traffic flow information such as traffic congestion status and travel time of the vehicle at each required position and time.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration example of a traffic information exchange system according to the present invention.
FIG. 2 is a conceptual diagram illustrating an operation example of the first embodiment in FIG.
FIG. 3 is a conceptual diagram illustrating an operation example of the second embodiment in FIG. 1;
FIG. 4 is a conceptual diagram illustrating an operation example of a third embodiment in FIG.
FIG. 5 is a conceptual diagram illustrating an operation example of a fourth embodiment in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Traffic information exchange system 2 Control part 3 Communication part 4 Traffic information storage part 5 Traffic condition calculation part 6 Sensor part A, B, C, D, E, F, G, H Vehicle

Claims (6)

All of traffic information including vehicle speed information, operation information indicating speed history, vehicle position information, moving direction information indicating the moving direction of the vehicle from the position history, passing time at a predetermined point, and travel time between predetermined points. Or, the vehicle information, which is a plurality of items, is exchanged with another vehicle by an intercommunication function, and the surrounding traffic flow is estimated based on the vehicle information collected from the other vehicle or vehicles. Traffic information exchange system characterized by seeking. A relay function of temporarily storing and transmitting vehicle information transmitted by the oncoming vehicle traveling in the opposite lane in the storage unit,
It receives vehicle information transmitted by vehicles traveling ahead in the same lane and relayed to oncoming vehicles, and estimates the traffic flow of the traveling destination based on the received vehicle information from a plurality of vehicles traveling ahead. 3. The traffic information exchange system according to claim 1, wherein the traffic information and travel time are obtained. A relay function of temporarily storing and transmitting vehicle information transmitted by a preceding vehicle traveling in the same lane in a storage unit,
Receives vehicle information transmitted by a plurality of preceding vehicles traveling in the same lane in chronological order, and estimates the traffic flow of the traveling destination based on the received vehicle information from the plurality of preceding vehicles, and determines the traffic congestion state of the road and the like. 3. The traffic information exchange system according to claim 1, wherein travel time is obtained. Speed information of the vehicle, operation information indicating the speed history, position information of the vehicle, moving direction information indicating the moving direction of the vehicle from the position history, passing time of a predetermined point, traffic information including travel time between predetermined points, A process of acquiring by a clock, a sensor, and a position detecting means;
Exchanging vehicle information, which is all or a plurality of items of the traffic information, with another vehicle by an intercommunication function,
A traffic condition calculating step of reading vehicle information from a storage unit, estimating a surrounding traffic flow based on the vehicle information collected from one or more other vehicles, and obtaining a traffic congestion condition and a travel time of a road; And a traffic information exchange method. Speed information of the vehicle, operation information indicating the speed history, position information of the vehicle, moving direction information indicating the moving direction of the vehicle from the position history, passing time of a predetermined point, traffic information including travel time between predetermined points, Processing obtained by a clock, a sensor, and a position detecting means;
A process of exchanging vehicle information, which is all or a plurality of items of the traffic information, with another vehicle by an intercommunication function, and storing the same in a storage unit;
A traffic condition calculating means for reading vehicle information from the storage unit, estimating a surrounding traffic flow based on the vehicle information collected from another vehicle or a plurality of vehicles, and calculating a traffic congestion state and a travel time of a road. A traffic information exchange program executable by a computer. A computer-readable recording medium on which the traffic information exchange program according to claim 5 is recorded.

Images