Method and system for testing tunnel exit low-angle sunlight instantaneous blinding effect

Abstract

The invention discloses a method and a system for testing the tunnel exit low-angle sunlight instantaneous blinding effect. The method comprises the following steps: a, selecting a simulation test tunnel and a simulation test road surface, building a simulation low-angle sunlight system, and setting an illuminometer at a position equal in height to the eyes of a driver of a tested vehicle; b, identifying a small target reference object arranged on the simulation test road surface on the selected simulation test tunnel and simulation test road surface by a driver, recording related data, and adjusting an illumination parameter of the simulation low-angle daylight system; and c, detecting the identification condition of the driver under the comparison of different illumination parameters. Multiple groups of tests are carried out by changing a single illumination parameter, the influence degree of the blinding effect on the visual ability of a driver is quantified, theoretical data reference is provided for setting of a light adaptation zone of a tunnel exit, and the traffic accident rate of a tunnel exit section is reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel traffic safety, in particular to a test method and system for the instantaneous blinding effect of low-angle sunlight at a tunnel exit. Background technique [0002] Tunnels are passages built underground or in mountains for cars to drive, and sometimes also serve as passages for pipelines and pedestrians, especially in hilly areas. Tunnels are more common in Southwest my country, and they are also the key to the connection of many main roads. However, due to the narrow and long characteristics of the tunnel, the interior of the tunnel is relatively dark. It is believed that lights are added for lighting. blinding effect. [0003] As of the end of 2018, there were 17,738 highway tunnels in service across the country, with a total mileage of 17,236,100 meters, an increase of 1,509 and 1,951,000 meters over the previous year. [0004] Because tunnel traffic accidents mostly occur at the entrance and...

AI Technical Summary

Problems solved by technology

When the sun is at a low position (especially in the morning or evening), drivers driving out of an east-west tunnel may be directly blinded by the sun directly shining on their eyes, and cannot obtain information about the driving environment and the vehicle itself (dashboard, etc. ) information, resulting in traffic accidents such as rear-end collision, wall collision, rollover, etc.

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