JPH10105875A - Traffic amount control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ease usual congestion on a speedway, a road only for vehicle, etc., and to provide drives information on a best speed in the section by allowing a central processor to process the number of traveling vehicles going in and out of a service area and the number of traveling vehicles going in and out of an interchange. SOLUTION: The number of vehicles going in and out each service area or each parking area is managed by a first information storing device 2. The number of vehicles going in and out each interchange is managed by a second information storing device 5. An average speed detector 4 calculates the average of speed from speed sensors 9a, 9B,...9Y and 9Z respectively arranged at each traveling lane in each section with these sensors. The central processor 1 inputs information from the detector 4 and the devices 2, 5 and calculates the best speed. Each display panel 7,..., 7' displays the best speed with road information for traveling vehicles to guide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic control system, and more particularly to a traffic control system that informs a driver of a traveling vehicle of traffic information based on a traveling vehicle flowing into or out of a service area or a parking area or a traveling vehicle entering or exiting an interchange. It relates to a quantity control system.

[0002]

2. Description of the Related Art Conventionally, road conditions such as accidents, traffic congestion, bad weather, freezing and the like are often notified to a driver of a vehicle on an expressway, a motorway, or the like by an electronic bulletin board or a dedicated broadcast. Providing appropriate traveling speed information in any section for vehicles traveling on expressways or motorways,
Traffic control systems that try to reduce chronic congestion,
Alternatively, a system called a vehicle speed control system has been developed.

[0003]

While such a system is useful for alerting the driver, preparing the vehicle for speed adjustments and preparing for possible events in the future, it is not sufficient information to eliminate congestion. is not. That is, if safety is not ensured, a traffic accident is likely to occur, and once a traffic accident occurs, it may cause traffic congestion.

Japanese Unexamined Patent Publication No. Hei 3-276399 discloses a system in which the details of traffic congestion are displayed in a fragmented manner to inform the driver of the details of the traffic congestion. Since only the amount and the vehicle speed are detected, there is a disadvantage that the absolute amount of the information is insufficient and the driver cannot be given appropriate information.

Japanese Patent Application Laid-Open No. 4-191134 discloses that, when the traffic volume is large, the electronic connection traveling system is operated to synchronize the transmission of each vehicle so as to eliminate a useless inter-vehicle distance and obtain an appropriate inter-vehicle distance. In addition, during operation of the electronically coupled traveling system, by controlling the traveling speed of each vehicle to a constant value, the system that eliminates the problem of inter-vehicle distance, which is considered to be a factor in the occurrence of traffic congestion, and reduces the occurrence of traffic congestion. Although disclosed, in such a system, an electronically connected traveling device for connecting and traveling a plurality of vehicles is indispensable. That is,
There is a drawback in that car remodeling is required, and practical connection control is performed on how to connect vehicles having their own propulsion.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a practical traffic volume control system in which appropriate information is input and no device or control unit is required to be mounted on the side of the traveling vehicle. is there.

Another object of the present invention is to alleviate chronic traffic congestion on a highway or a motorway, provide a driver with information on the best vehicle speed in the section, and make the vehicle most efficient and safe. Another object of the present invention is to provide a traffic flow control system that can make vehicles run on roads and make the density of vehicles on the road uniform.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a traffic control system according to the present invention comprises: a number of traveling vehicles entering and exiting a service area or a parking area; Is processed by the central processing unit as an information input, and based on this, traffic information is notified to the driver of the traveling vehicle.

Here, the information input includes information on the speed of the vehicle traveling in the traveling lane, and a warning that the best speed and lane change or an excess of a predetermined speed is displayed. Further, a vehicle speed sensor is arranged along the traveling lane to detect the speed of the vehicle traveling in the traveling lane.

[0010]

FIG. 1 shows a first embodiment of a traffic control device according to the present invention. In FIG. 1, a first embodiment of the traffic volume control device of the present invention includes vehicle speed sensors 9A, 9B,.
.., 9Y, 9Z, an average vehicle speed detection device 4 for calculating an average value of vehicle speed from these vehicle speed sensors, a central processing unit 1 to which the average vehicle speed value from this device 4 is input, each service area and each parking lot Vehicle sensors SAIN,..., SAIN ′ for detecting the number of vehicles flowing into the area;
Vehicle sensors SAOUT,..., SAOU that detect the number of vehicles that flow out of each service area and each parking area and travel on an expressway or a motorway.
T ′ and each of the vehicle sensors SAIN,..., SAIN ′, S
AOUT,..., SAOUT ′, a first information storage device 2 for temporarily storing information on the number of vehicles, and a vehicle for detecting the number of vehicles flowing into an interchange on an expressway or a motorway at each interchange. Sensor IC
IN,..., ICIN ′ and a vehicle sensor ICOUT that detects the number of vehicles flowing out of an interchange on an expressway or a motorway for each interchange.
.., ICOUT ′ and a second information storage device 5 for temporarily storing information of vehicle sensors at these interchanges.
Display plates 7,..., 7 ′ for informing the traveling vehicle of the information processed by the central processing unit 1 in each lane of each section;
An electronic bulletin board control unit 6 for controlling each display board 7,..., 7 ′, and a condition storage unit 3 for inputting and storing travel information.

Here, information is input to the central processing unit 1 not only from the average speed detecting device 4 but also from the first and second information storage devices 2 and 5. Since the number of vehicles flowing into each service area and each parking area causes a potential traffic jam, the vehicle sensors SAIN,.
It is important to detect by SAIN '. The number of vehicles flowing into and out of each interchange needs to be managed by the second information storage device 5 for each interchange. The vehicle speed in each section is input from the average vehicle speed detection device 4 to the central processing unit 1. The number of vehicles flowing into and out of each service area or each parking area is managed by the first information storage device 2. The inflow and outflow of vehicles at each interchange are also managed by the second information storage device 5.

Vehicle speed sensors 9A, 9B,..., 9Y, 9Z
A Doppler radar can be used. Vehicle sensors SAIN, ..., SAIN ', SAOUT, ... SAO
UT ', ICIN, ..., ICIN', ..., ICOU
For T,..., ICOUT ′, a combination of appropriately arranged light receiving elements and light emitting elements is used. Display board 7, ...,
7 'is preferably an electronic bulletin board which can be immediately recognized even when exposed to direct sunlight. Signal exchange between the central processing unit 1, the average vehicle speed detection device 4, the first and second information storage devices 2, 5, and the electronic bulletin board control 6 is performed by wire or wirelessly.

Next, the processing procedure of the central processing unit 1 and the display board 7, in the embodiment of the traffic control device of the present invention,.
, 7 'will be described. In the first embodiment of the present invention, the calculated best speed is represented by the following equation. Best speed = 100− (vehicle density × weather information + unspecified condition + section information) × safety factor [km / h] (1)

Here, the vehicle density is such that the vehicle distance is about 100
m means that four vehicles are connected and the length of the front and rear of the vehicle is about 3 m. A case where the vehicle distance is 200 m and two vehicles are connected consecutively is set to 0.5. In the weather information, clear weather is 1, rainy weather is 1.5, rain is 2, and snow and strong cross wind are 3
And

Under unspecified conditions, a situation that cannot be predicted, that is, a place where a falling object exists is set to 1. Set to 0 if safe driving is possible. In the section information, a tunnel, a sloping road, a curved road, or the like is set to 1, a dangerous road such as frozen road is set to 2, and a flat and straight lane is set to 0. This section information can be added to each other. The safety factor is necessary to ensure safety margin, and is usually set to 2.

Since there is no place exceeding 100 [km / h] on a current expressway or a motorway, the initial possession point is set to 100 [km / h]. Now, the inter-vehicle distance is 200
m, on a clear, curved downhill road, the above-mentioned best speed is given by the following equation (2). In other words, the display board informs the user that running the vehicle at 95 [km / h] is safe and smooth.

Next, referring to FIG. 2 showing the driving state of the traveling vehicle based on the first embodiment of the traffic volume control device of the present invention, the display board 10 is disposed at a predetermined distance along the traveling lane.
11, 12, and 13 are provided to inform the traveling vehicle of the best driving speed. Now, since there is a falling object, the display board 11 displays "there is a falling object, and the best speed is 60 km to the right" to inform the driver of the speed limit and the necessity of changing lanes. The display board 12 displays "There is a falling object two blocks ahead, the best speed is 70 km / h, the right is left", and teaches in advance the deceleration and lane change. On the display panel 13,
"Three blocks ahead of falling object, best speed 9070km / h"
And indicate the need for deceleration. The display panel 10
Indicates that the vehicle has already run too far at the location of the falling object 14, and that the normal "best speed of 100 km / h" is sufficient.

As described above, the best speed is displayed together with the road information to guide the vehicle. In addition, since each vehicle performs stepwise deceleration display on each of the display panels 12 and 13 in advance so as not to cause excessive deceleration immediately before, there is an advantage that traffic congestion in this section hardly occurs.

Next, FIG. 3 shows a traffic control state in the traffic use control device according to the second embodiment of the present invention. The configuration in the second embodiment is the same as the first embodiment in FIG. 1 described above, and will not be described again. In FIG. 3, the display boards 20, 21, 22 of the two-lane traveling lane,
Each 23 has a vehicle speed sensor.

The vehicle speed sensors 24 are provided on both sides of the traveling lane so that the speed of the vehicle traveling in both lanes can be detected. In the display panel 20, the normal "best speed 10
0 km / h ", the display board 21 indicates that there is a car 25 traveling at a low speed.
h), but there is an instruction to change lanes, such as "Low-speed vehicles go to the left lane." Further, the display board 22 indicates that “the best speed 8
0 km / h, low-speed vehicle "is displayed, and the necessity of deceleration is also told to the following vehicle 2. In addition, the display board 23 displays "best speed 100 km / h" because there is no problem in normal running. In this way, not only a warning to a low-speed vehicle, but also a lane guidance and a deceleration instruction to a following vehicle are issued.

According to the embodiment of the present invention, the vehicle speed sensors are provided all along the traveling lane. However, the present invention is not limited to this. It may be provided in some way. Further, the vehicle speed sensors 24 are provided on both sides, but are not limited thereto, and may be provided on the traveling lane.

Although not shown, a warning may be given to a vehicle exceeding the speed by displaying a message "reduce the speed".

Further, vehicle speed sensors 9A, 9B,..., 9Y, 9Z are provided at arbitrary points on the main line, and the speed of vehicles passing through the points is measured.
To accumulate. The information is analyzed by the central processing unit 1,
The vehicle density of a certain section (for example, how many vehicles exist on the main line) is obtained. In the central processing unit 1, based on the section information (tunnel, hill, curved road, etc.) input and stored in the condition storage unit 3, weather information, unspecified conditions (such as falling objects on the road), etc. Calculate the speed. This information is provided to the driver through a predetermined display board 7,..., 7 'or a dedicated broadcast.

By driving at the best speed indicated in each section, the driver of the vehicle can travel most efficiently and safely without being caught in traffic (without causing traffic congestion). This has the effect of eliminating chronic traffic jams and stagnation on expressways and the like.

According to the traffic volume control system of the present invention, it is possible to alert the driver, adjust the speed of the vehicle to an appropriate speed, prepare for an event to be encountered, and eliminate traffic jams. Further, according to the traffic control device of the present invention, the number of vehicles flowing into and out of an expressway or a motorway, entering a service area, etc.,
The number of vehicles leaving, ie the total number of vehicles on the road,
Measures the vehicle speed in the running section and provides information on the optimum vehicle speed in the section from the environmental conditions of the running section such as hills, tunnels, weather and falling objects, etc. Can be relaxed.

According to the above-described embodiment of the present invention, the display panel is used to notify the driver of the traffic information. However, the present invention is not limited to this, and a dedicated broadcast may be used. .

[0027]

As described above, according to the present invention,
Since the information can be provided to the driver of the vehicle based on a wealth of information, the driver of the vehicle can operate at the best speed indicated in each section so that the most efficient operation can be performed without being caught in traffic jams. It has the effect of driving well and safely and eliminating traffic congestion.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of a traffic control device of the present invention.

FIG. 2 is a diagram showing a state of traffic control based on the first embodiment of the traffic control device of the present invention.

FIG. 3 is a diagram showing a state of traffic control based on a second embodiment of the traffic volume control device of the present invention.

[Explanation of symbols]

 Reference Signs List 1 central processing unit 2, 5 information storage device 3 condition storage unit 4 average vehicle speed detection device 6 electric bulletin board control unit 7, 7 ', 10 to 13, 20, 23 display panel 9A, 9B, 9Y, 9Z, 24 vehicle sensor 25 , 26 Running vehicle

Claims (5)

[Claims] 1. A central processing unit which processes the number of traveling vehicles flowing into and out of a service area or a parking area and the number of traveling vehicles flowing into and out of an interchange as information input, and processes traffic information based on the information. A traffic volume control system for informing a driver of a traveling vehicle. 2. The traffic volume control system according to claim 1, wherein the information input includes information on a speed of a vehicle traveling in a travel lane. 3. The traffic volume control system according to claim 1, wherein a display instruction of a best speed and a lane change is given as said traffic information. 4. The traffic control system according to claim 1, wherein a warning that a predetermined speed is exceeded is displayed as the traffic information. 5. The traffic volume control system according to claim 2, wherein vehicle speed sensors are arranged along the traveling lane to detect a speed of a vehicle traveling in the traveling lane.