Keikyu: “Can't see the signal from 600m before the railroad crossing” What is the preventive measure? November 12, 18:40
In September, Keikyu made an interim report on the traffic signal to notify the abnormality in the railroad crossing in the derailment accident of the Keikyu Line that occurred in Yokohama City, on the 12th, from 600 meters before the railroad crossing that the company explained Clarified that the driver cannot confirm it visually. Keikyu is planning to prevent recurrence by increasing traffic lights.
In September, a special train collided with a large truck stuck in the railroad crossing at the railroad crossing in Kanagawa-ku, Yokohama, and the truck driver died and 35 people including passengers were injured. did.
Keikyu made an interim report of the in-house investigation of the accident on the 12th. According to it, it was initially explained that the traffic lights that indicate abnormalities in the crossing can be seen by the driver from 600 meters before the crossing. In fact, it was only visible from a point of 570 meters, and there were obstacles such as pillars and it was in a state of being hidden.
According to Keikyu, the distance required to stop a express train that runs 120 kilometers is about 520 meters, and if it can be seen from a point of 570 meters, it explains that there is no safety problem.
Although the company does not violate the national ministerial ordinances and company regulations, the company intends to increase the number of traffic lights so that it can be seen from the front as a preventive measure.
In addition, when the traffic light was activated, the company rule was changed so that the emergency brake was operated immediately.
Keikyu says, “I want to ensure safety by taking measures that I could not stop seriously and accumulating measures”.
Expert "Minimum 600m ..."
Ryo Takagi, a professor at Kogakuin University, who is familiar with railway safety measures, said, “If you do n’t hesitate to stop the emergency brake for a few seconds, it ’s not enough time. I wanted you to protect me. "
In addition, “I think it is necessary to create a system where the traffic lights can be seen from a little before, for example 1 km before, so that the judgment left to the driver can be made with sufficient margin. Therefore, it is necessary to consider a mechanism for automatically braking the train. "