JPH0981891A - Traffic control system for temporary road - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary road traffic control system capable of setting up a waiting position only on one position and efficiently and safely guiding an automobile to an one-way traffic road. SOLUTION: The traffic control system is provided with signals 20 to 23 arranged on the entrances of both the sides of a road R and the exits of both the sides of a waiting place R3, entrance detectors 11, 13 for detecting a vehicle arriving at the entrance of the road R and outputting its detection signal, passage detectors 15 to 18 for detecting vehicles passing the entrances of both the sides and the waiting place R3, and a control means. When vehicles arrive at the entrances on both the sides in a state that there is no vehicle on the road, the control means controls the signals 20 to 23 so that the signal of the entrance at which the 1st vehicle arrives is turned to 'green', the vehicle is allowed to enter into the road and wait on the waiting place, the signal of the other entrance is turned to 'green', the other vehicle is allowed to enter into the road from the other entrance and pass the waiting place, and after the passage of the vehicle, the vehicle waiting on the waiting place is allowed to pass.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is useful in mountainous areas and the like.
The present invention relates to a temporary road traffic control system used for traffic control such as a temporary road with poor visibility and a long section, or a road under construction with poor visibility.

[0002]

2. Description of the Related Art Conventionally, in various works such as mountainous areas,
Temporary roads with poor visibility and long sections usually run on one side, so one or more waiting points should be provided in the middle of the section, and traffic guides should be placed on both sides of the one-sided traffic period. Is arranging traffic signals and conducting traffic control by alternately guiding and passing cars.

[0003]

However, it is difficult to secure a place for installing a waiting place in a mountainous area, etc., and it is expensive, so it is desirable to keep only one waiting place. In addition, when arranging traffic guides, there is a problem that those people have to be engaged in traffic control for a long time, and in the case of using ordinary traffic signals, the traffic signals placed on both sides Since it is only turned on red and blue alternately at regular intervals, if the traffic light is on for a relatively long time, the driver who is stopped in red may feel irritated or the traffic light may be on for a long time. When is relatively short, a plurality of vehicles try to pass through at the moment when the color changes from blue to red, which causes a problem that the entering vehicle may collide with the entering vehicle from the opposite direction.

The present invention has been made in view of the above points, and the number of waiting places is limited to one so that a driver who is stopped does not feel annoyed and the vehicle is efficiently driven on a one-way road. It is an object of the present invention to provide a temporary road traffic control system that allows good and safe traffic.

[0005]

In order to achieve the above object, the temporary road traffic control system of the present invention is a temporary road traffic control system for performing traffic control on a road which has a wide waiting area in the middle part on one side. In the system, traffic lights installed at both entrances of the road and both exits of the waiting place, and entrance detectors provided at both entrances of the road and detecting a vehicle arriving at the entrance and outputting a detection signal thereof. , A passage detector for detecting a vehicle passing through the entrances on both sides and the waiting place, and a traffic signal for the entrance on the side that arrives first when the vehicles arrive at the entrances on both sides with no vehicles on the road Is blue (in this specification, "blue" means
(Which is a concept including blue, green, and turquoise) to allow the car to enter the road, stop the car at the waiting place and make it stand by, and then turn the traffic light at the other entrance blue. A control means for controlling the traffic light so that a car is made to enter the road from the other entrance, the car is passed through the waiting place as it is, and a car waiting in the waiting place is passed after the car is passed. And are provided.

[0006] Here, a bar segment type or numerical type waiting time indicator is installed in the traffic light or in the vicinity of the traffic light, and a bar segment or a bar segment according to the waiting time until the traffic light turns from red to blue is displayed. It is effective to display numbers numerically. In this case, there is provided a calculating means for calculating the waiting time based on the time required for the vehicle to travel on the road, the green time of the traffic light set and stored in advance, the vehicle entrance passage allowance time, the arrival allowance time and the like. To be further,
At both side entrances of the road, a normal vehicle lane and a special vehicle lane are provided, and a special vehicle detector for detecting a vehicle entering the special vehicle lane is provided. When entering the road, the control means may control the special vehicle to pass through the waiting place without waiting.

[0007]

[Operation / Effect] With the temporary road traffic control system having such a configuration, when there is no vehicle on the road and the vehicle arrives at the entrances on both sides, the traffic light at the entrance on the earlier arrival side is changed to blue. The car is allowed to enter the road, and the car is stopped at a waiting place to stand by. Next, change the traffic light at the other entrance to blue and let the car enter the road from the other entrance and pass the waiting place as it is, so that after passing the car, the car waiting in the waiting place is passed, It controls traffic lights installed at both entrances of the road and exits of the waiting area.

Therefore, cars arriving at the entrances on both sides of the road are allowed to enter the road alternately one after another, and even if the road is one-way, the cars arriving at the entrances on both sides of the road need not wait so long. It can be passed efficiently and safely.

Further, a bar segment type or numerical type waiting time indicator is installed near the traffic light or the traffic light,
By displaying a bar segment or a number according to the waiting time from when the traffic light turns red to when it turns blue, the driver can easily recognize the waiting time and the decrease in the waiting time can be visually recognized. It is possible to reduce the annoyance of a clearly recognized driver waiting for a signal.

Further, a lane for a normal vehicle and a lane for a special vehicle are provided at the entrances on both sides of the road, and a special vehicle detector for detecting a vehicle that has entered the lane for the special vehicle is provided. If the control means is configured to control the traffic light so that the special vehicle does not wait at the waiting place when entering the road, the special vehicle can be passed with priority over the normal vehicle.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an arrangement of a temporary road R, traffic lights installed there and detectors of an automobile. Temporary road R
Is a one-way road with poor visibility created in, for example, a mountainous area. A slightly wide waiting area R3 is formed between the sections R1 and R2, and vehicles passing through the temporary road R are You can pass each other only at R3.

A first entrance E1 and a second entrance E2 are provided at the end of the temporary road R, and the direction passing from the first entrance E1 to the second entrance E2 is upward, and the second entrance E2 to the first entrance E2.
The direction of passing 1 is downward.

The first entrance E1 and the second entrance E2 are formed wider than the normal part, and as shown in FIG. 2, two lanes, a normal vehicle lane TL and a special vehicle lane SL, are provided on one side of the approach side. It is provided. The normal vehicle lane TL is a lane for construction-related vehicles, is provided near the center line, and the special vehicle lane SL is a lane for emergency vehicles or local vehicles that are prioritized for passage.

Further, a first entrance detector 11 for detecting a vehicle and a first special vehicle detector 12 for detecting a special vehicle are installed at the first entrance E1, and a second entrance E2 is provided.
A second entrance detector 13 for detecting a normal vehicle and a second special vehicle detector 14 for detecting a special vehicle are installed.

First inlet detector 11 and second inlet detector 13
On the sides of the first inlet E1 and the second inlet E2, for example, 2
A transmission type photoelectric sensor for generating an optical axis of a book is installed and configured, and the transmission type photoelectric sensor is, for example, as shown in FIG.
The projectors PH1 and PH4 and the photoreceivers PH3 and PH2 are arranged on both sides of the road so as to prevent interference operation.

In the first special vehicle detector 12 and the second special vehicle detector 14, an ultrasonic sensor US is installed above the special vehicle lane SL, and a photodetector PH of the photoelectric sensor is provided.
3. The special vehicle is detected by taking the logical product of the detection signal from PH4 and the output signal of the ultrasonic sensor US.

Further, the first entrance detector 11 and the second entrance detector 13, and the first special vehicle detector 12 and the second special vehicle detector 14 have their detection signals provided that a vehicle has been detected for a certain period of time or longer. Is output. This prevents the oncoming vehicle from passing by mistake.

Further, a first passage detector 15 and a second passage detector 16 are installed to detect a vehicle passing through the entrance and the exit of the section R1, and a vehicle passing through the entrance and the exit of the section R2 is detected. In order to do so, the third passage detector 17 and the fourth passage detector 18 are installed. These passage detectors 15-
As 18, for example, a transmissive photoelectric sensor that generates two optical axes can be used as in the case of the first and second detectors.

Further, on the temporary road R, four traffic lights are installed at appropriate places. That is, the first traffic light 20 is installed at the first entrance E1, the second traffic light 21 is installed at the upstream side of the standby station R3, the third traffic light 22 is installed at the downstream side of the standby station R3, and the fourth traffic signal 23 is installed. It is installed at the second entrance E2.

As shown in FIG. 3A, these traffic signals 20 to 23 are constructed by providing a signal display portion SG on the front surface of the box body, and the signal display portion SG has a red color and a green color (or a blue color or a blue green color). A large number of two-color emission type LEDs capable of switching light emission are arranged in a circular portion. In addition, as shown in FIG. 3B, 2 of red and blue
You may provide the one signal display part SG1, SG2.

Further, each of the traffic signals 20 to 23 has a first waiting time indicator 2 for displaying a waiting time at the signal.
4, second waiting time indicator 25, third waiting time indicator 2
6. A fourth waiting time indicator 27 is provided for each.

As shown in FIG. 3A, the waiting time indicators 24 to 27 are composed of a bar segment type waiting time display section JK provided below the signal display section SG. The waiting time display section JK is formed by arranging a large number of LEDs emitting orange light in a bar segment shape, for example, meaning a predetermined time for each bar segment, and displaying the waiting time according to the number of lit bar segments. . The waiting time display unit may be a waiting time display unit JK1 that displays numbers, as shown in FIG. 3B.

FIG. 4 shows a block diagram of the control circuit of the traffic control system. This control circuit is mainly composed of a microcomputer, and its CPU 1 executes control of a traffic signal, display of waiting time, etc., which will be described later, based on program data stored in advance in the ROM 2.
A setting device 5 and the like are connected to the input / output circuit 4.

The setting device 5 is a setting device for setting various setting times such as the entrance green time and the arrival margin time in advance, and is composed of a numeric keypad, a keyboard having function keys and the like. The RAM 3 is provided with a storage area for storing various set times such as a green entrance time and a margin of arrival time, and the set values are written therein. Although illustration is omitted, a display is provided for displaying set values and the like.

Further, the input / output circuit 4 has the above-mentioned first
Second entrance detectors 11 and 13, first and second special vehicle detectors 1
2, 14, first to fourth passage detectors 15 to 18, first to fourth traffic lights 20 to 23, first to fourth waiting time indicators 24 to.
27 is connected.

In case the entrance detectors 11 and 13 cannot detect a car, push button switches S1 and S2 are provided at the first entrance and the second entrance, and when the switches are turned on, the arrival at the entrance of the car is reached. Is manually input.

Next, the operation of the temporary road traffic control system having the above configuration will be described with reference to the flowcharts of FIGS.

Prior to the operation of this system, the set values required by the setter 5 are set as follows, and those values are set to R
Store it in AM3. First, the lengths of the sections R1 and R2 of the temporary road R (for example, 500 m) and the expected average speed of the vehicle traveling on the road (for example, 30 km / h) are set. Further, the blue time of the first traffic light 20 and the fourth traffic light 23, that is, the entrance green time T1 (for example, 10 seconds) is set.
This entrance green time is the time that a car can pass when the traffic light changes from red to blue.

Next, the blue margin time T2 (for example, 5 seconds) is set. This blue margin time is a margin time when confirming the passage of an automobile passing a blue traffic light. Next, the entrance passage detection margin time T3 (for example, 10 seconds) is set. This entrance passage detection margin time is equal to the first traffic light 20 or the fourth traffic light 2.
When 3 changes from red to blue, it is a margin time required for the first passage detector 15 or the fourth passage detector 18 to detect the number of vehicles passing through.

Next, the allowance time T4 (for example, 10 seconds)
Set. In this spare time, the car is in the waiting place R3
It is a margin of time to reach the exit from. Next, the standby time T5 (for example, 10 seconds) is set. This waiting station green time is the time until the traffic lights 21, 22 at the waiting station turn blue and the vehicle passes the passage detectors 16, 17.

Next, the waiting time after passing T6 (for example, 5 seconds)
Set. The waiting time after passing is a waiting time for a vehicle to arrive at a waiting place or an exit and then change a signal or the like. Next, the up / down switching time T7 (for example, 5 seconds) is set. During this up / down switching time, one car is waiting at R3
It is the waiting time for switching when the vehicle arrives at and then switches to drive in the opposite direction.

In this traffic control system, basically, the first traffic light 20 and the fourth traffic light 23 at both entrances are normally red, and when the vehicle arrives at the first entrance E1 or the second entrance E2. , Red is changed to blue and one is passed through, and at the first entrance E1 and the second entrance E2, they are alternately passed one by one in the order of arrival of vehicles.

When a vehicle that has entered the temporary road R first stands by at the waiting place R3, the vehicle that enters next in the opposite direction is passed through as it is. Further, at the first entrance E1 and the second entrance E2, the special vehicle entering the special vehicle lane SL is different from the normal vehicle entering the normal vehicle lane TL.
Control the passage so that it has priority.

When the system is started, the CPU 1 first turns on all the traffic lights 20 to 23 in red in step 100. Next, at step 110, an uphill entry prohibition flag KF
1 is reset, and in step 120, the downward entry prohibition flag KF2 is reset. Next, in step 130, the flag AF1 with the section R1 vehicle is reset, and in step 140, the flag AF2 with the section R2 vehicle is reset.

In this state, the CPU 1 executes the ascending traffic processing of step 150 (FIG. 6) when the vehicle reaches the first entrance E1, and the step 160 when the vehicle reaches the second entrance E2. The downward traffic processing (FIG. 8) is executed.

For example, when a car enters the first entrance E1,
The first inlet detector 11 detects it and sends the detection signal to the control circuit. At this time, the CPU 1 proceeds from step 200 to step 210, confirms that the fourth traffic light 23 at the second entrance E2 on the opposite side is red, and proceeds to step 230.
Then, it is determined whether or not the uphill approach is OK. When the uphill approach prohibition flag KF1 is in the reset state, it is determined that the uphill approach is OK, and the process proceeds to the next step 240.

In step 240, the CPU 1 sets the downward entry prohibition flag KF2, in step 250, sets the section R1 vehicle presence flag AF1, and in step 260.
Then, the first traffic light 20 is changed from red to blue.

As a result, the vehicle at the first entrance E1 enters the section R1, and the first passage detector 15 detects the passage of this vehicle and outputs a detection signal. When receiving the passage detection signal, the CPU 1 proceeds from step 270 to step 280 and changes the first traffic light 20 from blue to red.

Next, at step 290, it is judged whether or not two or more cars have passed through the first entrance, and from the detection signal from the first passage detector 15, two or more cars have not passed. If it is judged that the special vehicle has passed, it is judged from the detection signal from the first special vehicle detector 12 whether or not the special vehicle has passed.

When it is determined that the car is not a special car,
In the next step 310, the downward entry prohibition flag KF2 is reset, and in step 320, the vehicle is in the waiting place R3.
It is determined by the detection signal from the second passage detector 16 whether or not it has passed through the entrance.

When it is determined that the vehicle has passed through the entrance of the waiting place R3, next, at step 330, the section R1 vehicle presence flag AK1 is reset, and at step 340, the section R2 vehicle presence flag AK2 is set. Is determined.

If it is determined that there is no vehicle in the section R2 while the section 2 vehicle presence flag AK2 is in the reset state, next, in step 350, the downward entry prohibition flag KF2 is set, and in the next step 360, the Turn the two traffic lights 21 to blue. When the traffic signal 21 is lit in blue, the vehicle advances from the waiting place R3 to the section R2.

When the CPU 1 determines from the detection signal from the third passage detector 17 that the vehicle has passed the exit of the waiting place R3, then in step 380, the second traffic light 21 is changed to red, First, in step 390, it is determined whether the vehicle has passed through the up exit. Then, the fourth passage detector 18
When it is determined that the vehicle has passed through the ascending exit and exited from the temporary road R by the detection signal from
Then, the downhill entry prohibition flag KF2 is changed to reset, and this uphill traffic processing is temporarily terminated.

On the other hand, when it is determined in step 290 that two or more cars have passed through the first entrance, that is,
There are two or more cars at the first entrance, and the first traffic light 20
When the vehicle turns from blue to red in a short time, and a succeeding vehicle has also entered the vehicle, the process proceeds to step 360. When a special vehicle such as a local vehicle enters from the special vehicle lane and the first special vehicle detector 12 detects it in step 300, the process similarly proceeds from step 300 to step 360. Then, in step 360, the second traffic light 21 is changed to blue, so that two or more vehicles or special vehicles that have entered the road R pass through without waiting at the waiting place R3.

On the other hand, when one car enters from the first entrance and the first traffic light 20 changes from blue to red, the waiting time is calculated and displayed as shown in the flowchart of FIG. (4) The waiting time is displayed on the waiting time display 24 or the like.

When entering this processing, the CPU 1 sets the first waiting time WT1 to the expected time Td (for example, 120 seconds) during which the vehicle travels in the section R1 and the section R2 in step 400.
Is added with the blue allowance time T2, the arrival allowance time T4, the waiting place green time T5, and the waiting time after passage T6, that is, WT1 = T
It is calculated from the equation of d + T2 + T4 + T4 + T5 + T6.
Here, when each set time is set as described above, the first waiting time WT1 is WT1 = 120 + 5 + 10 + 10
+ 10 + 5 = 160 seconds.

Then, in step 410, the first waiting time of 160 seconds is displayed on the first waiting time display 24 as a bar segment. The display of the bar segment decreases thereafter every time a predetermined time elapses, and disappears when the waiting time ends.

Further, in step 420, it is judged whether or not two or more cars or special cars have entered the section 1, and 2
If more than one car or special car has entered the section 1, the process proceeds to step 430, and the fourth waiting time display 27 also displays the same waiting time WT1, that is, 160 seconds.

When the number of vehicles entering is not one or special vehicle, the process proceeds from step 420 to step 440, where the second waiting time WT2 is set to WT2 = Tf (expected time to travel in the section R1) + T4 (margin time). ). In this case, the second waiting time is WT2 = 60 + 10 = 70 seconds. Then, in step 450, the second waiting time of 70 seconds is displayed on the second waiting time display unit 25 as a bar segment. The display of the bar segment decreases thereafter every time a predetermined time elapses, and disappears when the waiting time ends.

Although not shown in the flow chart,
When there are cars at the first entrance E1 and the second entrance E2, and one car passes in the up direction and then the car passes in the down direction,
The first waiting time indicator 24 shows the above-mentioned first waiting time WT1.
A time obtained by adding the up / down switching time T7 (for example, 5 seconds), that is, 165 seconds is displayed. Also, the second waiting time indicator 2
5 includes the second waiting time WT2 and the up / down switching time T7.
The time obtained by adding (for example, 5 seconds), that is, 75 seconds is displayed.

On the other hand, when a vehicle enters the second entrance E2, the second entrance detector 13 detects it and sends the detection signal to the control circuit. At this time, the CPU 1 proceeds from step 500 to step 510, confirms that the first traffic light 20 at the opposite first entrance E1 is red, and at step 530,
It is determined whether the downhill approach is OK, and the downhill approach prohibition flag K
When F2 is in the reset state, it is determined that the downhill approach is OK, and the process proceeds to the next step 540.

In step 540, the CPU 1 sets the uphill entry prohibition flag KF1, and in step 550, sets the section R2 vehicle presence flag AF2, and then step 560.
Then, change the fourth traffic light 23 from red to blue.

As a result, the vehicle at the second entrance E2 enters the section R2, and the fourth passage detector 18 detects the passage of this vehicle and outputs a detection signal. When receiving the passage detection signal, the CPU 1 proceeds from step 570 to step 580 and changes the fourth traffic light 23 from blue to red.

Next, at step 590, it is judged whether or not two or more cars have passed through the second entrance, and from the detection signal from the fourth passage detector 18, two or more cars have not passed. When it is determined that the special vehicle has passed, it is determined based on the detection signal from the second special vehicle detector 14 whether or not the special vehicle has passed.

When it is determined that the car is not a special car,
At the next step 610, the up-entry prohibition flag 1 is reset, and at step 620, it is determined by the detection signal from the third passage detector 17 whether or not the vehicle has passed through the entrance of the waiting place R3.

When it is determined that the vehicle has passed through the entrance of the waiting place R3, next, in step 630, the section R2 vehicle presence flag AK2 is reset, and in step 640, the section R1 vehicle presence flag AK1 is set. Is determined.

If it is determined that the section R1 vehicle presence flag AK1 is in the reset state and there is no vehicle in the section R1, then in step 650, the up-entry prohibition flag KF1 is set, and in the next step 660, Turn the three traffic light 22 into blue. When the traffic light 22 lights up in blue, the car is in the waiting area R3.
To Section R1.

When the CPU 1 determines from the detection signal from the second passage detector 16 that the vehicle has passed through the exit of the waiting place R3, then in step 680, the third traffic light 22 is changed to red, First, in step 690, it is determined whether the vehicle has passed through the down exit. Then, the first passage detector 15
When it is determined that the vehicle has passed through the downward exit and exited from the temporary road R according to the detection signal from the next step 695
Then, the up-entry prohibition flag KF1 is changed to reset, and this down-passing process is once ended.

On the other hand, when it is determined in step 590 that two or more cars have passed through the second entrance, that is,
The 2nd entrance is followed by 2 or more cars, and the 4th traffic signal 23
When the vehicle turns from blue to red in a short time, and a succeeding vehicle also enters, the process proceeds to step 660. If a special vehicle such as a local vehicle enters from the special vehicle lane and the second special vehicle detector 14 detects it in step 600, the process similarly proceeds from step 600 to step 660. Then, in step 660, since the third traffic light 22 is turned blue, two or more vehicles or special vehicles that have entered the road R will pass without waiting at the waiting place R3.

On the other hand, when one car enters from the second entrance and the fourth traffic light 23 changes from blue to red, the waiting time is calculated and displayed as shown in the flowchart of FIG. (4) The waiting time is displayed on the waiting time display 27 or the like.

In this process, the CPU 1 sets the first waiting time WT1 to the expected time Td (for example, 120 seconds) during which the vehicle travels in the section R2 and the section R1 in step 700.
Is added with the blue allowance time T2, the arrival allowance time T4, the waiting place green time T5, and the waiting time after passage T6, that is, WT1 = T
It is calculated from the equation of d + T2 + T4 + T4 + T5 + T6.
Here, when each set time is set as described above, the first waiting time WT1 is WT1 = 120 + 5 + 10 + 10
+ 10 + 5 = 160 seconds.

Then, in step 710, the first waiting time of 160 seconds is displayed on the fourth waiting time display 27 as a bar segment. The display of the bar segment decreases thereafter every time a predetermined time elapses, and disappears when the waiting time ends.

Further, in step 720, it is judged whether or not two or more cars or special cars have entered the section R2,
When two or more cars or special cars enter the section R2, the process proceeds to step 730, and the first waiting time indicator 2
Also in 4, the waiting time WT1 similar to the above, that is, 160 seconds is displayed.

When the number of vehicles entering is not one or special vehicle, the process proceeds from step 720 to step 740, and the second waiting time WT2 is set to WT2 = Tf (estimated time of traveling in section R2) + T4 (margin time). ). In this case, the second waiting time is WT2 = 60 + 10 = 70 seconds. Then, in step 750, the second waiting time of 70 seconds is displayed as a bar segment on the second waiting time indicator 25. The display of the bar segment decreases thereafter every time a predetermined time elapses, and disappears when the waiting time ends.

Although not shown in the flow chart,
If there are cars at the first entrance E1 and the second entrance E2, and one car passes in the down direction, and then the car goes in the up direction,
The fourth waiting time indicator 27 indicates the first waiting time WT1.
A time obtained by adding the up / down switching time T7 (for example, 5 seconds), that is, 165 seconds is displayed. Also, the third waiting time indicator 2
6 includes the above-mentioned second waiting time WT2 and the up / down switching time T7.
The time obtained by adding (for example, 5 seconds), that is, 75 seconds is displayed.

Thus, when a car arrives at the first entrance E1 or the second entrance E2, the first traffic light 20 or the fourth traffic light 23 is changed from red to blue, and one car is made to enter the road. The entering car is made to stand by at the waiting place R3, the car from the opposite side which made the next entrance is passed through as it is, and at the time when the car passes the waiting place, the car is started immediately while waiting. Since the traffic control is performed as described above, each time a vehicle arrives at the entrances on both sides, they can be sequentially and alternately passed one by one safely and efficiently.

In addition, the local vehicles, emergency vehicles, and other special vehicles that have entered the special vehicle lane SL are allowed to pass through the normal vehicle lane TL without passing through the waiting area.
It is possible to give priority to passing a normal vehicle in the shortest time.

Further, the waiting time indicators 24 to 27 provided for the respective traffic lights indicate that when the traffic lights change from blue to red, the passing time of the vehicle, that is, the waiting of the traffic light from the preset blue time or the like. Since the time is calculated and displayed in bar segment display or numerical display, it is possible to prevent the driver stopped in red from feeling annoyed.

In the case of a temporary road with a very long section, if the temporary road traffic control system having the above-mentioned configuration is installed in series, it is possible to drive the vehicle efficiently without feeling frustration to the driver.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an arrangement of a temporary road R, a traffic light installed on the temporary road R, and detectors of an automobile according to an embodiment of the present invention.

FIG. 2 is a cross-sectional explanatory view of first and second inlets.

FIG. 3 is a front view of a traffic light.

FIG. 4 is a block diagram of a temporary road traffic control system.

FIG. 5 is a basic flowchart of a temporary road traffic control system.

FIG. 6 is a flowchart of an uphill traffic process.

FIG. 7 is a flowchart of waiting time calculation / display processing.

FIG. 8 is a flowchart of a down traffic process.

FIG. 9 is a flowchart of waiting time calculation / display processing.

[Explanation of symbols]

 1-CPU, 11-First entrance detector, 12-First special vehicle detector, 13-Second entrance detector, 14-Second special vehicle detector, 15-First passage detector, 16-Second Passage detector, 17-third passage detector, 18-fourth passage detector, 20-first traffic light, 21-second traffic light, 22-third traffic light, 23-fourth traffic light. R-temporary road, R3-waiting place, E1-first entrance, E2-second entrance.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Maeda 3-3-22 Nakanoshima, Kita-ku, Osaka Kansai Electric Power Co., Inc. (72) Inventor Koji Magoshi 2-4-4 Awaza, Nishi-ku, Osaka Sumitomo Electric Incorporated Co., Ltd. (72) Inventor Cleared Ochiai 2-4 Awaza, Nishi-ku, Osaka City Sumitomo Electric Co., Ltd. (72) Inventor, Kazushige Matsumura 1-39 Hikizawa, Kamiyagai, Aichi Prefecture Toyo Denki Incorporated (72) Inventor Makoto Umemoto 1-39 Hikizawa, Kamiyacho, Kasugai-shi, Aichi Toyo Denki Co., Ltd.

Claims (4)

[Claims] 1. A temporary road traffic control system for performing traffic control on a road that has a wide waiting area in the middle part and is one-way traffic, and traffic lights installed at both entrances of the road and both exits of the waiting area. An entrance detector which is provided at both entrances of the road and detects a vehicle arriving at the entrance and outputs a detection signal thereof; a passage detector which detects cars passing through the entrance and the waiting place of both sides; When there are no cars inside, when the cars arrive at the entrances on both sides, change the traffic light at the entrance on the first arrival side to blue to allow the car to enter the road and place the car at the waiting area. Stop and wait, then turn the traffic light at the other entrance to blue to let the car enter the road from the other entrance and pass the waiting place as it is, and wait in the waiting place after passing the car Control to control the traffic light so that the vehicle Temporary road traffic control system comprising: the means. 2. A bar segment type or numeral type waiting time indicator is installed in the traffic light or in the vicinity of the traffic light, and a bar segment or a number corresponding to a waiting time from when the traffic light turns red to when it turns blue. The temporary road traffic control system according to claim 1, characterized in that 3. The time when a car travels on the road is preset.
3. The temporary road traffic control system according to claim 2, further comprising calculation means for calculating the waiting time based on the stored set times such as a green time of a traffic light, a vehicle entrance passage allowance time, and an arrival allowance time. 4. A lane for a normal vehicle and a lane for a special vehicle are provided at both entrances of the road, and a special vehicle detector for detecting a vehicle entering the lane for the special vehicle is provided. The temporary road according to claim 1, wherein, when a special vehicle in the lane for use enters the road, the control means controls the special vehicle to pass through the waiting place without waiting. Traffic control system.