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Distance sensing system for tunnel and layout method

A technology of distance perception and tunnel, which is applied in the field of traffic safety, can solve the problems of poor distance perception effect and high cost, achieve cost saving, simple layout method, and improve the driver's ability to perceive distance in the tunnel environment

Inactive Publication Date: 2020-04-24
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides a distance perception system and layout method for tunnels, which have solved the defects of poor distance perception and high cost of traffic safety facilities in tunnels in the prior art

Method used

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  • Distance sensing system for tunnel and layout method
  • Distance sensing system for tunnel and layout method
  • Distance sensing system for tunnel and layout method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The distance perception system for the tunnel of this embodiment, such as figure 1 As shown, the shaded part represents the marking line. There are multiple strip marking lines on the tunnel pavement or the walls on both sides of the tunnel. The marking lines are arranged side by side along the length direction of the tunnel. Above, one end of the marking line is set at the bottom of the tunnel wall, and the marking line is in the shape of a yellow band.

[0031] After analysis and testing, the distance between two adjacent marking lines is set to 30m-50m, the width of the marking line is 0.4m, and the period of the marking line is the sum of the marking line spacing and the marking line width, which is 30.4m-50.4m. The height of the car is 2.5m, which can effectively improve the driver's perception of tunnel distance.

[0032] In order to determine the best marking line width and marking line spacing, the inventor adopts marking line widths of 1.5m and 3m, and marking...

Embodiment 2

[0063] A layout method, including determining the length L of the tunnel distance perception correction section, calculating the number N of corrected marking lines, where X is the period of the marking line, N≈L / X, where N is rounded down, and X is 30.4m-50.4 m It can be known from Embodiment 1 that the marking line is drawn according to the calculated N.

[0064] Preferably, the value of X is 30.4m. At this time, the marking line is laid on the tunnel wall, the marking line width is 0.4m, and the marking line spacing is 30m, which can effectively reduce the driving risk.

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Abstract

The invention relates to the technical field of traffic safety, in particular to a distance sensing system for a tunnel and a layout method. According to the distance sensing system for the tunnel, aplurality of strip-shaped marked lines are arranged on the road surface of the tunnel or the walls of the two sides of the tunnel, the marked lines are arranged side by side in the length direction ofthe tunnel, and the distance between two adjacent marked lines ranges from 30 m to 50 m. Compared with a tunnel without marked lines, the tunnel environment distance sensing capability of a driver isimproved, and the driving risk is reduced. The layout mode is simple, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a distance perception system and a layout method for tunnels. Background technique [0002] The semi-enclosed, low-illumination, and monotonous driving environment inside the expressway tunnel makes the driver lack of reference targets when judging the speed, the speed perception ability is reduced, and it is easy to maintain high-speed driving, causing traffic accidents such as rear-end collisions. Among all kinds of traffic accidents in tunnels, vehicle rear-end collisions and tunnel wall collisions are the most common types of traffic accidents. The reason is that the distance to the vehicle in front is misjudged in the tunnel. [0003] At present, the traffic safety facilities in tunnels that are widely used mainly include speed bumps, strobe lights, variable information boards, and wired broadcasting. However, this method has different deceleration effects for vehicl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F9/576E01F9/604E01F9/658
CPCE01F9/576E01F9/604E01F9/658
Inventor 李昊如许金良高超魏乐宇燕孟华屈秦州杨莹莹
Owner CHANGAN UNIV
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