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Abstract

Due to the temporary nature of maintenance operations, the traditional permanent guardrail can not play a role. Therefore, the isolation guardrail is widely used in highway maintenance operations. However, China has not provided safety evaluation criteria for isolation guardrails, leading to a stagnation in research on them. Based on the analysis of the practical application of the isolation guardrail in China’s road maintenance operation, this paper referred to the Manual for Assessing Safety Hardware (MASH) given by the American Association of State Highway and Transportation Officials (AASHTO). Starting from factors such as the vehicle type used in the crash test, the total mass of the vehicle, the collision speed, the collision angle, and the length of the test and combining the frequent characteristics of traffic accidents and the safety index of the vehicle passengers, the safety evaluation specification of the isolation guardrails under the crash condition was proposed.

Publication Date

6-18-2022

DOI

10.14048/j.issn.1671-2579.2022.03.049

First Page

267

Last Page

270

Submission Date

May 2025

Reference

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