JP7128875B2 - Tunnel safety system for accident prevention - Google Patents

Description

The purpose of the present invention is to inform the driver in advance of the situation inside the tunnel, which is currently difficult to check due to force majeure by the driver's individual efforts, by installing a monitor that shows the inside of the tunnel* at the entrance and exit of the tunnel. Accident Prevention Tunnel Safety System”.
*In case of exit, go outside

It is the problem to be solved by the present invention to prevent the current lack of forward confirmation, including the force majeure and continued guesswork in tunnels, the constant driver sway, and accidents.

Currently, when entering a tunnel while a car is running, it is not uncommon for people to enter without being able to fully understand what is going on in the narrow, dark area ahead of the entrance (inside) due to force majeure. . Especially in the daytime, it is difficult to check the dark interior when entering the tunnel from a bright place in the sun.

Congestion in tunnels is a common occurrence, and driving into tunnels at that speed can lead to rear-end collisions. Conversely, if the vehicle suddenly decelerates, a rear-end collision with the following vehicle will occur.

On a daily basis, it is an extremely dangerous situation in which a traffic jam in a tunnel, an accident, or a vehicle straying from the opposite lane cannot be sufficiently confirmed. These lead to accidents, and accidents in tunnels cause great casualties.

In addition, even if it does not lead to an accident, the driver who is approaching the tunnel in this state will be greatly stressed at this moment.
In other words, in addition to the emotional turmoil of driving into a tunnel in front of you without being able to see through it, you must try to perceive the situation inside the tunnel ahead and behind you (following vehicles) in an instant, and make an instant decision as you progress to see if you can decelerate. is forced to

This situation and driving are taking place every day all over the country. When an accident occurs in a tunnel, there are many obstacles such as casualties, traffic jams, running of ambulance vehicles, and the execution of official duties by police officers. The installation of electronic bulletin boards to notify of accidents is only a part of the situation.

A camera is installed at the entrance of the tunnel to show the inside direction from the entrance, and the image is displayed on the monitor at the entrance. As a result, the driver can check the situation before intrusion, and the above problem is solved. By visualizing the inside of the tunnel, which has been impossible to grasp, it is a means that enables the driver to confirm the safety ahead.

It is the optimal solution, minimizing construction costs and tunnel downtime, without the need for extensive tunnel civil engineering rework. Durability (low failure rate) is expected with a relatively simple machine.

Currently, there are only a few places where the accident notification is made by letters on the electric bulletin board, and there is a time lag because it is not possible to understand things such as going out of the opposite lane. On the other hand, if a video means is used, it is more concrete and realistic, and can be used as a criterion for driving decisions. It is a means for each person to grasp the situation and make decisions on their own without the need for stationed staff.

When the driver enters the tunnel, he/she must see the video of the inside in advance. As a result, insufficient confirmation of the front due to force majeure when entering a tunnel, which has been commonplace, is eliminated. Random tunnel entry due to force majeure is eliminated, and frequent accidents in tunnels and subsequent frequent accidents can be prevented.

In addition, the stress of the driver, who was temporarily forced to invade by chance, will be eliminated, and safer driving will be possible in a calm state of mind.

By projecting the interior on a monitor at the entrance of the tunnel, it will always be in the field of view and the driver can be notified of the situation inside ahead in advance.

Depending on the form of the tunnel main body, the monitor may be (1) installed directly on the tunnel main body, (2) installed at a distance, or the most ideal form depending on the actual individual shape.
(1) and (2), it is important to let the viewer see the image in advance before the tunnel.

The installation at the exit can also be expected to have the same effect by enabling the front to be seen when exiting from a tunnel that is bright at night to the dark open air. Since safety is enhanced by installing both, a synergistic effect is expected.

The basic mechanism itself is as simple as a security camera.
In addition, all-weather durable monitors have already been installed in buildings and outdoors and have been on the market for several decades.

Therefore, since new development and research are not required, it is possible to start quickly.

In addition, the tunnel itself does not need to be rebuilt on a large scale, and can be installed and operated with little downtime, so it is highly usable. Therefore, it is safe in terms of budget and durability (failure/maintenance), so it is easy to implement and has high usability. The expected effect on the initial installation cost and the maintenance and operation cost (investment amount) is great.

Claims (1)

A monitor is installed not only at the entrance of the tunnel but also at "both entrances and exits", and at the entrance, the inside of the tunnel is projected by a camera aimed at the inside of the tunnel, informing the driver of the situation inside the tunnel before entering, and at the "exit" of the tunnel. A safety system that informs you of the situation at your destination before you leave.

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