JPH035998Y2 - - Google Patents

Description

[Detailed Description of the Invention] Field of the Invention The present invention relates to a traffic light for pedestrians used on wide roads, and more particularly to a traffic light that divides the display for pedestrians into two.

Prior Art and Its Problems In conventional traffic lights, up lanes and down lanes are regulated by signals with the same steps. Therefore, when the traffic volumes of the up and down lanes are different, it is not possible to set each step efficiently. For example, when a pedestrian traffic light B is installed between traffic lights A and C at two intersections on a wide road as shown in Figure 1, the control of that traffic light B takes a step time as shown in Figure 2 a. It shall be held at In this figure, solid lines indicate blue traffic lights, double lines indicate red traffic lights, and triangular lines indicate yellow traffic lights. In such a traffic light, if the up lane has a higher traffic volume than the down lane, the green time for pedestrians is determined in relation to the up lane, which has a higher traffic volume. Therefore, pedestrians waiting at a traffic light on the outbound lane sometimes feel distressed because the traffic light does not turn green even though there is little traffic. In addition, in order for pedestrians to safely cross this road during green traffic lights, a flashing blue light is displayed as shown by the vertical broken line in Figure 2a, but if the road is wide, the flashing time will be longer. I had to do it, and I couldn't make the green time too long.

If the traffic lights A to C are centrally controlled on the road shown in FIG. 1, a through-band diagram shown in FIG. 3a can be drawn. In this diagram, the vertical solid lines at the positions of traffic lights A, B, and C indicate the red lights of each traffic light, and the width of the band indicated by hatching in the diagram allows passing through each traffic light without hitting the red lights. It corresponds to the number of vehicles. In other words, vehicles passing through the up lane have a wide right-up through band TB1, so they are less likely to wait at a traffic light and can pass smoothly, whereas vehicles in the down lane have a right-down through band TB2 wide. Since it is narrow, there is a high possibility that you will have to wait at one of the traffic lights.
In this way, the difference in the operating time of each traffic signal, that is, the setting of the offset value, must be determined by taking into account the traffic volume in both the up and down lanes, and in that case, if one is given priority, the through band of the other lane will be narrow There was a problem that I had no choice but to do so.

Another problem was that it took longer for vulnerable road users, such as the elderly and the physically disabled, to cross a long crosswalk than it would for the average person, making it more dangerous.

Purpose of the invention This invention solves these conventional problems.The number of pedestrians passing on the road is reduced for a certain period of time after the traffic light turns green in order for pedestrians who were waiting at the traffic light to start crossing. This was done by focusing on the fact that the number of pedestrians is high, and that the number decreases after that, and that pedestrians, unlike vehicles, can be made to wait in relatively narrow spaces.

This invention sets appropriate vehicle passing time and pedestrian time according to the respective traffic volumes when the traffic volume in the up lane and the down lane is different, so that vehicles and pedestrians can efficiently pass through the road. The purpose of the present invention is to provide a two-part traffic light that can display two parts.

Means for Solving the Problems The present invention provides a first signal light B1 and a second signal light B.
2 and a traffic light control unit 10, the first signal light B1 and the second signal light B2 are separated from each other on a road 1 having a wide median strip 2 so that they are not in line of sight with each other. The first signal light B1 has a first pedestrian signal light device 6a, 6b and a first vehicle signal light device 8 for the up lane that is synchronized therewith, The second signal light B2 is a second pedestrian signal light device 7a, 7.
b, and a second vehicle signal light device 9 for the down lane that is synchronized therewith, and the signal control unit 10 has a signal light device 9 for the second vehicle for the up lane and a second vehicle for the down lane. This is characterized in that the lighting of the first signal light and the second signal light is controlled by a control signal.

Effect According to the present invention having such features, the first signal light B1 for the up lane and the second signal light B2 for the down lane are installed independently so that they are not in line of sight with each other, and The lighting of each signal lamp is controlled according to the display signal that is independently given to each signal lamp.

DESCRIPTION OF THE EMBODIMENTS FIG. 4 is a diagram showing the arrangement of pedestrian traffic lights according to the present invention. In this figure, the road 1 is wide, and a wide median strip 2 is provided in the center. Assume that there is currently a lot of traffic on the up lane of road 1 (to the right in the figure) and less traffic on the down lane (to the left in the figure). Now, in this invention, the pedestrian traffic lights are not one in which the up and down directions are connected, but the crosswalk 3 in the up lane and the crosswalk 4 in the down lane are slightly shifted so that they are not in the line of sight. It is installed separately. An island-shaped safety zone 5 is provided between the crosswalks 3 and 4 in the median strip. The upward crosswalk 3 is provided with a pair of pedestrian signal lamps 6a, 6b, and the downward crosswalk 4 is also provided with a pair of pedestrian signal lamps 7a, 7b. It goes without saying that the signal lamps 6a and 6b correspond to the vehicle signal lamp 8 (these signal lamps are referred to as signal lamp B1), and are controlled so that they do not turn green at the same time. Further, the signal lamps 7a and 7b correspond to the vehicle signal lamp 9 (these signal lamps are referred to as signal lamp B2), and are controlled so that they do not turn green at the same time.

FIG. 5 is a block diagram showing the configuration of a traffic light according to the present invention. In the figure, a traffic light control section 10 is provided with a transmission control section 11 that performs data transmission with the center. The transmission control section 11 receives traffic light control data from the center and provides the signal to the control section 12, and the control section 12 also sends data such as the step number of the traffic light to the center. The storage device 13 stores various information and control programs necessary for traffic light control. The control unit 12 controls each part of the traffic light according to commands from the center, and its output is given to the lamp drive unit 14. The lamp driving section 14 drives the aforementioned pedestrian signal lamps 6a, 6b, 7a, 7b and the vehicle signal lamps 8, 9 based on the control signal from the control section 12.

Next, Fig. 2 shows the operation of the traffic light of this embodiment.
This will be explained using the operation step diagram and through band diagram in FIG. FIG. 2b is a diagram showing the control steps for the signal lamps 6a, 6b for the up lane and the signal lamp 8 for vehicles, and FIG. 2c is a diagram showing the control steps for the signal lamps 7a, 7b for the down lane and the signal lamp 9 for vehicles. FIG. 3 is a diagram showing control steps. As shown in these figures, the green time for vehicles to pass through the up lane with heavy traffic is lengthened, and the green time for pedestrians to pass through crosswalk 4 is lengthened for the down lane with low traffic volume. are doing. . In this way, pedestrians attempting to cross the road 1 from the up lane will wait until the signal from the signal lamp 6b turns green. On the other hand, pedestrians who wish to cross the road 1 from the down lane can pass through the crosswalk 4 with a relatively short waiting time. Pedestrians who have crossed the crosswalk 4 remain on the island 5 of the median strip, and pedestrian signal lights 6a and 6b
We will wait for the color to turn blue. Therefore, when the pedestrian signal lights 6a and 6b turn green, many pedestrians who were waiting at the signal near the signal light 6a and on the island 5 rush out to the crosswalk 3,
Pass through pedestrian crossing 3 for crossing the up lane. Pedestrians crossing Road 1 from the inbound lane will then cross Road 5.
The driver crosses the signal on the down lane side, which requires relatively less waiting time at the signal, by following the signal lamps 7a and 7b.

Further, in the through-band diagram shown in FIG. 3B, according to the present invention, the traffic signal B is divided into an upstream signal lamp B1 and a downstream signal lamp B2. Therefore, the signal lamp B1 and the signal lamp B2 can be controlled so that the maximum through band determined by the traffic lights A and C is obtained. That is, as shown in this figure, the red signal of signal lamp B1 is indicated by a thick solid line, and the red signal of signal lamp B2 is indicated by a thick solid line.
If the red traffic light is shown by a thick broken line, it is possible to control the steps of the traffic lights in the up and down directions separately to widen the through bands TB3 and TB4.

As shown in these figures, by dividing the operation of the traffic lights for the up lane and the down lane into two, it is possible to control each separately and perform appropriate control according to the traffic volume in the up and down directions.

Effects of the invention As explained in detail above, according to the invention, when the traffic volumes in the up lane and the down lane are different, it is possible to set appropriate vehicle passing time and pedestrian time according to the respective traffic volumes. I can do it. In this way, it is possible to condense the time for pedestrians to cross the road for lanes with high traffic volume, and to make effective use of green time for pedestrians. Furthermore, by setting a longer green time for pedestrians in lanes with low traffic volume, it is possible to reduce waiting time for pedestrians, which shortens the time required for pedestrians to cross the road.

Furthermore, the offset of this traffic light can be independently set in the up and down directions. Therefore, offset design becomes easy and the through band can be increased. Therefore, vehicles passing in either the up or down direction are less likely to have to wait at a traffic light, making it possible to smooth the flow of vehicles.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a road with a traffic light for pedestrians, Fig. 2a is an operation step diagram of a conventional traffic light,
Figures 2b and c are operation step diagrams of the traffic light according to the present invention, Figure 3a is a through-band diagram of a conventional traffic light, Figure 3b is a through-band diagram of a traffic light according to the present invention, and Figure 4 is a diagram of the traffic light according to the present invention. FIG. 5 is a block diagram showing the configuration of the traffic light. 1...Road, 2...Median strip, 3, 4...Crosswalk, 5...Island, 6a, 6b, 7a, 7b,
8, 9... Signal lamp, A, B, C... Traffic light, B
1, B2... Signal light, 10... Traffic light control section.

Claims (1)

[Claims for Utility Model Registration] An existing two-part traffic light having a first signal light B1, a second signal light B2, and a traffic light control unit 10, wherein the first signal light B1 and the second signal light B2 are installed separately on a road 1 having a wide median strip 2 so that they are not in line of sight with each other, and the first signal light B1 is connected to the first pedestrian signal lights 6a and 6b. The second signal light B2 has a first vehicle signal light device 8 for the up lane that is synchronized with the second vehicle signal light device 8 for the up lane, and the second signal light B2 has a second signal light device 7a, 7b for the pedestrian and a signal light device 8 for the down lane that is synchronized therewith. A second vehicle signal lamp 9 is provided, and the traffic signal control unit 10 controls the first vehicle by display control signals corresponding to the respective traffic volumes of the up lane and the down lane. 1. A two-part signal light, characterized in that it controls lighting of a signal light and the second signal light.