JP2002063680A - Traffic control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly guide a vehicle to a bypass. SOLUTION: This system is provided with a traffic detecting means 16 for detecting the traffic of each of routes when a road network 1 is divided into plural routes 3, a control target route detecting means 17 for detecting a control target route, to which the execution of traffic control is required, out of plural routes on the basis of each of detected traffic quantity, a control target determining means 19 for determining a control target corresponding to the traffic of the control target route, a bypass route selecting means 20 for selecting one or plural bypass routes corresponding to the control target route corresponding to the control target, a guide quantity calculating means 22 for calculating each of guide quantities of a vehicle corresponding to the selected bypass route and the control target route while using an experiential expression, and a guide control means 24 for controlling the inflow quantity of vehicles to the bypass route and the control target route into each calculated guide quantity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a traffic control system for smoothing the flow of vehicles on a road network.

[0002]

2. Description of the Related Art For example, in a highway network, various systems for smoothing the flow of vehicles have been developed and put into practical use. In these systems, on each route constituting the expressway network, a traffic detector is provided for each predetermined distance section, and the number of vehicles, the average speed, the required time, etc. in each section are measured. , The presence or absence of traffic congestion in each section and the degree of traffic congestion (congestion distance, time required to pass through congestion locations)
Is determined.

[0003] Then, public radio broadcasting is used, a navigation system mounted on each vehicle is used, a VICS (road traffic information communication system) is used, and an electric bulletin board installed on the road is used. As a result, the driver of a vehicle traveling on each line of the expressway network is notified of the congested section.

[0004] The driver of each vehicle, which has confirmed such a congested section and the degree of congestion by the above-described method, determines whether or not a congested section is included in a route (route) from the current position to his / her destination. If it is determined that a traffic congestion section is included, the degree of traffic congestion is determined first, and the required time to the destination is estimated. If the required time exceeds the allowable range, it is determined whether or not there is a detour that bypasses the congested section. If there are a plurality of detour lines, the shortest detour line is selected. If there is no detour line, be patient and proceed to the traffic congestion section.

[0005] Such a driver's thinking process is performed on the traffic control system side, and the driver is notified of the congested section and the best detour route bypassing the congested section at the same time by the above-described method. is there.

[0006] In some navigation systems, the navigation system itself uses its own map information to automatically calculate and display the route from the current location to the destination including the detour route in the shortest time. It may be displayed on the screen.

[0007]

However, as described above, even in the case of traffic congestion, a traffic control system or a navigation system for notifying a driver of a traveling vehicle of an optimal detour line is still solved. There were the following issues to be addressed.

[0008] That is, the congestion-occurring section and the detour line described above are simultaneously notified to the drivers of all vehicles traveling on each line of the road network. As a result, all vehicles traveling on each route stop entering the route in the traffic congestion section and enter the detour line all at once. As a result, traffic congestion on the route of the congestion generation section is largely eliminated, but a new congestion section is generated on the detour line.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and controls the flow of a vehicle by individually controlling the amount of guidance of the vehicle to a target route and a detour line for controlling traffic congestion or the like. It is an object of the present invention to provide a traffic control system that is distributed between a target route and a detour route, can surely eliminate traffic congestion and the like, and can further facilitate the flow of vehicles on the entire road network.

[0010]

In order to solve the above-mentioned problems, a traffic control system according to the present invention comprises a traffic volume detecting means for detecting a traffic volume of each route when a road network is divided into a plurality of routes. A traffic control target line detecting means for detecting a traffic control target route requiring traffic control among a plurality of routes based on the respective traffic volumes detected by the traffic flow detecting means; and Control target determination means for determining a control target according to the traffic volume in the above, detour line selection means for selecting one or a plurality of detour lines for the control target route in accordance with the determined control target, and detour line selection A guidance amount calculation means for calculating each guidance amount of the vehicle to the detour line and the control target route selected by the means using an empirical formula, and an inflow amount of the vehicle to the detour route and the control target route are calculated. And a guidance control means for controlling the induction amount.

[0011] In the traffic control system thus configured, the traffic volume of each line constituting the road network is detected. Each route is classified into a control target route and a non-control target route according to the traffic volume of the route. For example,
Routes with congestion are designated as traffic control target routes.

For a control target route, a control target is set according to the traffic volume of the route. Further, a detour line for the applicable control target route is selected according to the set control target. Then, guidance amounts of the vehicle with respect to the control target line and the detour line are calculated and guidance control is performed.

Therefore, since the inflow of the vehicle is dispersed between the control target route and the detour route, the traffic congestion on the control target route is eliminated, and no traffic congestion occurs on the detour route.

In another aspect of the invention, the guidance control means in the traffic control system according to the above-described invention is arranged to enter the detour line or the control target line from the branch point near the branch point between the detour line and the control target line. The vehicle is notified of the guidance to the detour line or the control target line at a time ratio corresponding to each guidance amount.

In the traffic control system thus configured, each vehicle is guided to the detour line for three minutes out of five minutes, for example, in the vicinity of the branch point between the detour line and the route to be controlled, and for two minutes. Guide each vehicle to the control target line. Therefore, the inflow amount of the vehicle is dispersed on the control target line and the detour line.

In another aspect of the present invention, the traffic control system according to the above-mentioned invention further includes means for detecting traffic volume on a control target route and a detour route after controlling the inflow of the vehicle by the guidance control device. Control evaluation means for evaluating the calculated guidance amount based on the actual traffic volume obtained in the above, and correction means for correcting the empirical formula in the guidance amount calculation means based on the evaluation of the control evaluation means. .

Even if the guidance control means controls the inflow amount of the vehicle to the detour line and the route to be controlled to the calculated guidance amounts, the congestion is not always effectively eliminated in a short time. Therefore, the control result is evaluated, and the evaluation result is fed back to the guidance amount calculation. Therefore, when this traffic control system is operated for a long time, the control accuracy is improved.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating a schematic configuration of a traffic control system according to the embodiment. For example, a road network 1 composed of a metropolitan expressway network or the like is divided into a plurality of routes 3 at a branch point 2. Therefore, the distance of the route 3 depends on the position of the branch point 2 and varies depending on the route 3. On the other hand, the section described above has a fixed length, for example, 1 km, and is shorter than the distance of the route 3. Each route 3 is provided with a traffic detector 4. An electric bulletin board 5 is provided at a position near the branch point 2 of each line 3.

Each of the traffic detectors 4 detects the traffic (the number of vehicles) per unit time of the vehicles passing through the route 3 and the speed of each vehicle, and transmits them to the traffic intake unit 6. On the electronic bulletin board 5 installed near the branch point 2 of each route 3, control guidance is displayed for each vehicle passing through the branch point 2. The control guidance is, for example, "Currently, the route A is congested, so please go through the detour of the route B". The display contents of each of the electronic bulletin boards 5 are controlled by the control output unit 7.
Instructed by

In the traffic control system including a computer, a database 8, a traffic data file 9, a control target route file 10, a control target memory 11, an empirical memory 12, and the like are provided. In the database 8, a route database 13, a threshold memory 14, a map memory 15
Are formed.

As shown in FIG. 2, the route database 13 stores, for each route 3 constituting the road network 1,
The route number, route name, and distance that specify the route are stored.

In the traffic data file 9, as shown in FIG. 3, for each route 3 constituting the road network 1, the corresponding route 3
The number of vehicles that indicate the total number of vehicles existing within
The travel time, which indicates the average travel time required for the vehicle to pass through, and the average speed are stored. The number of vehicles, travel time, and average speed in the traffic data file 9 are updated by the traffic volume calculation unit 16 to, for example, the latest number of vehicles, travel time, and average speed at 5-minute intervals.

In the threshold memory 14 of the database 8,
As shown in FIG. 4, for each route 3 constituting the road network 1,
The number threshold of the number of vehicles that are determined to be congested on the corresponding route 3 and the time threshold of travel time are stored.
The number threshold of the number of vehicles and the time threshold of the travel time can be arbitrarily changed by the administrator of the traffic control system by manual operation.

In the map memory 15 of the database 8,
Map data is stored which indicates the connection status between the respective routes 3 constituting the road network 1 via the branch points 2.

As shown in FIG. 5, the control target route file 10 indicates whether traffic control is required for each route 3 or not.
The presence / absence of abnormality occurrence is stored. The information on the presence / absence of control and the presence / absence of occurrence of abnormality in the control target line file 10 is also updated to the latest value, for example, every 5 minutes.

As shown in FIG. 6, the traffic control amount memory 11 stores traffic control targets and guidance amounts for each line 3. As a matter of course, the control target and the guidance amount are not set for the route 3 of the non-control target route which does not need to perform the traffic control. The control target indicates a specific control instruction content for the control target route according to the traffic volume of each control target route and the adjacent route, for example, "exclusion""suppression"
It is set to five levels of “maintain”, “permit”, and “cancel”.

The guidance amount is a specific vehicle guidance amount with respect to the control target route and the detour line in order to realize each control target described above.

The empirical formula memory 12 stores specific empirical formulas indicating a method for obtaining an actual guidance amount from “exclusion”, “suppression”, and “maintenance” accompanied by specific operations among the respective control targets. ing.

Further, in this traffic control system, as shown in FIG. 1, a traffic volume calculating section 16, a control target line detecting section 17, an abnormality detecting section 18, a control target calculating section 19, a detour line selecting section 20, Closed entrance designating unit 21, guidance amount calculating unit 2
2. A guidance control unit 23, a traffic control evaluation unit 24, a correction unit 25, and the like are provided.

Next, the operation of each of the units 16 to 25 will be described in order.

The traffic volume calculation unit 16 calculates the traffic volume (number of vehicles) per unit time of vehicles passing through the corresponding route 3 and the speed of each vehicle output from the traffic volume detector 4 installed on each route 3. From the distance of the route 3 in the route database 15, the average number of vehicles existing in the route 3 for, for example, 5 minutes is calculated. Further, for example, an average speed for 5 minutes is calculated from the speed of each vehicle. Furthermore, from the average speed,
Calculate the average travel time. The calculated number of vehicles, travel time, and average speed on each route 3 are written in the traffic data file 9 at intervals of, for example, 5 minutes. Therefore, as described above, the traffic data file 9 always stores the latest traffic data.

The control target line detection unit 17 uses each value of the traffic volume data file 9 and each value of the threshold memory 14 to
For each route 3, it is determined whether or not the corresponding route 3 should perform traffic control. Specifically, the travel time stored in the traffic data file 9 of FIG.
When the time exceeds the time threshold of the corresponding line 3 in the threshold memory 14 and the number of vehicles stored in the traffic data file 9 of FIG. In the case where the number of thresholds of the corresponding route 3 in the threshold memory 14 is equal to or more than the threshold value, the corresponding route 3 is designated as the control target route. The result of whether or not the control target route is designated is written in the control target route file 10 shown in FIG.

The abnormality detecting unit 18 determines whether an abnormality such as a traffic accident occurs on the relevant line 3 based on the number of vehicles, the travel time, and the average speed of the traffic data file 9 shown in FIG. It is determined whether or not the route is to be written to the area of the route 3 corresponding to the control target route file 10. Further, when an abnormality occurs, the abnormality occurrence position, the number of closed lanes, and the expected closing time in the corresponding route 3 are determined, and the information is also written in the corresponding area. Then, the route 3 in which the abnormality has occurred is designated as the control target route.

Further, the abnormality detecting section 18 monitors the traffic volume on the route 3 upstream of the route 3 including the location where the abnormality has occurred in the traffic data file 9, and the average speed of the route 3 on the upstream side is determined in advance. If the average speed is lower than a threshold value of, for example, 40 km / h, and the number of existing upstream routes 3 is equal to or greater than a predetermined number, and the number of existing routes is increasing. If you have
This upstream line 3 is designated as a control target line.

The route target calculation unit 19 performs the above-described “exclusion” on each of the control target routes set in the control target route file 10 based on the number of existing traffic, the travel time, and the average time in the traffic data file 9. '' Suppress '''' Maintain ''
One of the control targets of "cancel" is determined and written into the control target memory 11 shown in FIG.

More specifically, "exclusion" means that entry into an abnormal event occurrence point occurring in the relevant control target line is prohibited, and all vehicles existing in the relevant control line are replaced with another line 3 or Indicate that you are leaving for general reason. For example, in the case where a traffic stop occurs due to an accident or the like, the control target of this “exclusion” is set.

The term "suppression" indicates that the traffic volume in the control target route is reduced. For example, the control target of “suppression” is set when a route having a low average speed is adjacent even on one route, and the traffic volume in the control target route is reduced by being distributed to an adjacent route.

"Maintenance" indicates that the current traffic volume in the applicable traffic control target route is maintained. For example, when the average speed of the adjacent line is equal to the average speed of the corresponding control target line, the control target of “maintain” is set.

"Allow" indicates that an increase in the traffic volume within the relevant control target route is permitted. For example, when the traffic volume of the adjacent route is larger than the traffic volume of the relevant control target route, the control target of “permissible” is set.

"Release" indicates that the control target for the corresponding control target route is released. The conditions for this release are that the travel time stored in the traffic data file 9 of FIG. 3 is continuously less than the time threshold of the corresponding route 3 in the threshold memory 14 of FIG. This is a case where the number of vehicles stored in the traffic data file 9 has become less than the number threshold of the corresponding route 3 in the threshold memory 14 of FIG.

The detour line selecting unit 20 controls the solid line among the “exclusion”, “suppression”, “maintenance”, “permission” and “release” set for each control target line set in the control target memory 11 of FIG. For each of the control targets of “exclusion”, “suppression”, and “maintenance”, the map information in the map memory 15 of the database 8 is used to extract (1) all the detour lines that detour the applicable control target route. (2) Of the extracted detour lines, detour lines whose traffic volume of the detour line itself exceeds the threshold value of the threshold memory 14 are excluded.

(3) Calculate the total travel time on each detour line. (4) If the detour route is designated as a detour route of another traffic control target route, the travel time is weighted by, for example, one to three times. (5) Select a detour route whose adjusted travel time is less than 1.5 times the travel time of the control target route. (6) Each of the selected detour lines is sent to the guidance amount calculation unit 22.

The guidance amount calculation unit 22 calculates the inflow amount of the vehicle into the control target route and the inflow amount of the vehicle into each of the selected detour lines. Specifically, (1) Each guidance amount for the control target line and each detour line is determined so that the inflow amount of each selected detour line and the inflow amount of the control target line are finally equal. In this case, the number of vehicles present on the control target route at the current time, the travel time, the average speed, and the number of vehicles present on each detour line at the current time,
The reciprocal of the ratio between the travel time and the average speed is multiplied by an empirical coefficient, and each multiplied value is determined as each guidance amount for the control target line and each detour line.

That is, a larger guidance amount is given to a detour line with a small traffic volume. Naturally, it is necessary to satisfy the condition that the traffic volume given by the large guidance volume does not exceed each threshold in the threshold memory 14.

(2) The traffic volume on the control target route is the threshold memory 1
The respective control amounts are determined for the control target route and each detour line so that the traffic amount exceeding each threshold value is moved to each detour line so as to be less than each threshold value of No. 4.

As described above, the guidance amount calculation unit 22 calculates the guidance amount of the vehicle on the control target route and the guidance amount of the vehicle on each of the selected detour lines. It is calculated from the actual traffic volume based on an empirical formula.

The empirical formula and the coefficients and weights incorporated in the empirical formula are stored in the empirical formula memory 12.
The empirical formulas stored in the empirical formula memory 12 and the coefficients and weights incorporated in the empirical formulas are corrected by the correction unit 25 to optimal values each time a predetermined period elapses.

The closed entrance designating section 21 stores the control target memory 1
When there is an entrance in the control target line corresponding to each control target of “suppression” of each control target line stored in 1, the entrance closing is determined in the following procedure.

(1) Search for the most downstream point where traffic congestion has occurred on the control target line.

(2) The entrances upstream from the searched point are sorted in descending order of the inflow amount.

(3) For a control target route, if a traffic flow of the control target route tends to increase after a certain period of time has elapsed after outputting a detour guidance instruction to a detour route, at the entrance in sorted order. On the other hand, a control instruction for closing the entrance is sent to the guidance control unit 23.

Further, when the entrance exists in the control target line corresponding to each control target of “exclusion” of each control target line stored in the control target memory 11, the closed entrance designation unit 21 Therefore, a control instruction to close the entrance is sent to the guidance control unit 23 for each entrance from the abnormality occurrence position to the branch point 2 on the upstream side.

The guidance control unit 23 controls the inflow amount of the vehicle to each of the control target routes and the detours calculated in the guidance amount calculation 22 to the respective guidance amounts calculated in the guidance amount calculation 22.

Specifically, by using the electronic bulletin board 5 installed near the branch point 2 between the detour line and the control target line, each vehicle that is going to enter the detour line or the control target line from the branch point 2 is used. On the other hand, the guidance to the detour line or the control target route is notified at a time ratio corresponding to each guidance amount. For example, for 5 minutes, each vehicle is guided to the detour route by the electronic bulletin board 5 for 3 minutes, and each vehicle is guided to the control target line by the same electronic bulletin board 5 for 2 minutes. Therefore,
The inflow of vehicles is distributed between the control target line and the detour line,
Traffic congestion on routes subject to traffic control will be resolved.

Further, a radio wave that reaches only in the vicinity of the branch point 2 is transmitted from a radio wave source near the branch point 2 and is divided into the navigation system of each vehicle that is going to enter the detour line or the control target line from the branch point 2. It is also possible to display the same content as the above-mentioned electronic bulletin board on this navigation system. Further, the guidance control unit 23
Sends a closing command from the closed entrance designating section 21 to the entrance of the road network 1 whose entrance is designated to be closed.

The traffic control evaluation unit 24 takes in each of the guidance amounts output from the guidance amount calculation unit 22 and the entrance closing designation output from the closed entrance designation unit 21. Further, the traffic control evaluation unit 24
Detects the actual traffic volume of the control target route and the detour route for each of the above-mentioned guidance amounts and entrance closure.

Specifically, from the start of control to the end of control, each route 3 of the traffic data
The number of vehicles, travel time, and average speed in are collected. Further, the control execution time of the control target route is collected from the control target route file 10. Then, the evaluation for the current traffic control process is evaluated by a score. The higher the control time, the higher the score, the lower the number of existing road networks 1, the higher the score, and the shorter the travel time of each route, the higher the score.

As described above, in the control evaluation section 24,
An evaluation result of the guidance control performed on the traffic volume to be controlled in the traffic data file 9 is obtained. And
The control evaluation unit 24 learns, by using, for example, a neural network method, guidance control that can obtain the best evaluation result from the traffic volume of the control target, based on the relationship between the traffic volume of the control target, the guidance control, and the evaluation result.

Based on the learning result, the empirical formula memory 1
The empirical formula stored in the empirical formula 2 and the coefficients and weights incorporated in the empirical formula are corrected via the correcting unit 25.

Note that the control evaluation unit 24 is, for example, 30
It is performed when a predetermined amount of actual data can be collected, such as once a minute.

The overall operation of the traffic control system thus configured will be described with reference to the flowchart shown in FIG. For example, if the unit time T ₁ of the like 5 minutes have elapsed (S1), by starting the traffic amount calculating section 16, the existence number of each line 3, travel time, traffic seeking traffic volume consisting of the mean velocity data file 9 (S2). The abnormality detection unit 18 determines whether or not an abnormality such as a traffic accident has occurred based on the number of existing lines, the travel time, and the average speed of each line 3 (S3).

Next, the control target line detecting section 17 is activated, and the traffic volume and abnormality detecting section 1 of the traffic data file 9 is activated.
Based on the abnormality occurrence information of _No. 8, it is determined whether or not there is a control target route (S4).

If it is determined that the control target route exists, each control target route is set in the control target route file 10. And
The control target calculation unit 19 is activated, sets a control target for each control target route, and writes the control target in the control target memory 11 (S
5). When the control target of each control target line is determined, a control method setting process is performed (S6). In this control method setting process, the detour line selection unit 20 selects a detour line, the guidance amount calculation unit 22 determines the guidance amount for the control target route and the detour line, and the closed entrance designating unit 21 specifies the required entrance. Determine the instruction to close the entrance. And the guidance control unit 32
Then, guidance control for each vehicle flowing into each control target route and detour line is performed (S7).

If the specified period T ₂ such as 30 minutes has not elapsed since the previous time, the process returns to S 1.
When 0 minutes such provisions period T ₂ has elapsed, by starting control evaluation unit 24 and the correction unit 25, it evaluates the induction control is performed to improve the empirical formula for determining the induction amount (S9).

In the traffic control system configured as described above, a control target is set according to the traffic volume, and a detour line for the corresponding control target line is selected according to the control target. Then, guidance amounts of the vehicle with respect to the control target line and the detour line are calculated and guidance control is performed. Therefore, since the inflow of the vehicle is dispersed on the control target route and the detour route, the traffic congestion on the control target route is eliminated,
No congestion occurs on the detour line.

An actual application example of such a traffic control system will be described with reference to FIGS. FIG. 8 shows a road network 1 composed of a metropolitan expressway network. The road network 1 is divided into a plurality of routes 3 at a branch point 2. Now, it is assumed that the vehicle moves from the upper departure point 30 to the lower destination 31 by vehicle.

When no congestion occurs, as shown in FIG. 9, the vehicle travels to the destination 31 via the normal route 32 indicated by a bold solid line with the shortest or minimum time. Here, as shown in FIG. 10, when traffic congestion occurs on the route 33 on the normal route 32, each of the routes 33 on which the traffic congestion becomes a traffic control target route, and as shown in FIG. A detour route 34 that bypasses each route 33 in which traffic has occurred is selected.
In this case, a detour route that requires 1.5 times as much travel time as when traveling on each of the congested routes 33 is excluded from detour targets.

However, in the detour route 34 selected in FIG. 11, there is a possibility that the traffic volume is concentrated on the route 3 from the branch point 2 of C to the destination 31 and a new traffic jam occurs. In this case, as shown in FIG. 12, another detour line 35 newer than the branch point 2 of B is selected in consideration of the traffic volume ahead of the branch point 2 of B.

Therefore, in this example, guidance instructions are given to each vehicle at two locations, the branch point 2 of A and the branch point 2 of B, by using the electronic display panel.

[0070]

As described above, in the traffic control system according to the present invention, the road network is divided into a plurality of routes at the branch points, the traffic volume is detected for each route, and the traffic control target such as the occurrence of congestion is detected. The guidance amount of the vehicle with respect to the route and the detour is individually controlled.

Therefore, the flow of vehicles is distributed to the control target route and the detour line, traffic jams and the like can be reliably eliminated, and the flow of vehicles over the entire road network can be further smoothed.

The result of the control is evaluated, and the evaluation result is fed back to the calculation of the guidance amount. Therefore, by operating this traffic control system for a long period of time, the control accuracy is further improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a traffic control system according to an embodiment of the present invention.

FIG. 2 is a diagram showing storage contents of a route database formed in the traffic control system;

FIG. 3 is a diagram showing storage contents of a traffic database formed in the traffic control system;

FIG. 4 is a diagram showing storage contents of a threshold memory formed in the traffic control system;

FIG. 5 is a diagram showing the storage contents of a control target route file formed in the traffic control system.

FIG. 6 is a diagram showing storage contents of a control target memory formed in the traffic control system.

FIG. 7 is a flowchart showing the overall operation of the traffic control system.

FIG. 8 is a diagram showing a road network to which the traffic control system is applied;

FIG. 9 is a diagram showing a normal route in the road network where no congestion occurs.

FIG. 10 is a diagram showing a state in which traffic congestion occurs in the road network.

FIG. 11 is a diagram showing a detour line for a route on the road network where traffic congestion occurs.

FIG. 12 is a diagram showing still another detour line for a line on the road network where traffic congestion occurs.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Road network 2 ... Branch point 3 ... Route 4 ... Traffic amount detector 5 ... Electric bulletin board 8 ... Database 9 ... Traffic data file 10 ... Traffic object target line file 16 ... Traffic amount calculating unit 17 ... Control target line detecting unit 18 ... Abnormality detector 19 Control target calculator 20 Detour line selector 22 Guidance calculator 23 Guidance controller 24 Traffic control evaluator

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Naomi Konno 1 Toshiba-cho, Fuchu-shi, Tokyo F-term in the Fuchu Plant, Toshiba Corporation 5B049 BB31 CC02 CC31 DD00 DD05 EE01 EE07 FF01 FF03 FF04 FF06 FF09 5H180 AA01 DD02 DD04 EE03 FF12

Claims (3)

[Claims] 1. A traffic volume detecting means for detecting a traffic volume of each route when a road network is divided into a plurality of routes, and based on each traffic volume detected by the traffic volume detecting device,
A control target line detecting means for detecting a control target route requiring traffic control from among the plurality of routes, and a control target determining means for determining a control target according to the traffic volume in the detected control target route. A detour line selecting means for selecting one or a plurality of detour lines for the control target route in accordance with the determined control target; and a detour line selected by the detour line selection means and the control target route. A traffic comprising: guidance amount calculating means for calculating each guidance amount of a vehicle using an empirical formula; and guidance control means for controlling the inflow amount of the vehicle to the detour line and the control target route to the calculated guidance amounts. Traffic control system. 2. The vehicle according to claim 1, wherein the guidance control unit is configured to provide, in the vicinity of a branch point between the detour line and the control target line, a vehicle that attempts to enter the detour line or the control target line from a corresponding branch point. 2. The traffic control system according to claim 1, wherein a notification of guidance to a detour line or a line to be controlled is performed at a time ratio corresponding to each guidance amount. 3. The calculated guidance based on the actual traffic volume obtained by the traffic volume detection means on the control target route and the detour line after the control of the vehicle inflow volume by the guidance control device is performed. The traffic control system according to claim 1 or 2, further comprising: traffic control evaluation means for evaluating an amount; and correction means for correcting an empirical formula in the guidance amount calculation means based on the evaluation of the traffic control evaluation means. .