Abstract

Qinghai-Tibet highway is a highland highway connecting Qinghai and Tibet in the Qinghai-Tibet Plateau. In order to improve traffic safety and reduce traffic accidents of the Qinghai-Tibet highway, present state of traffic safety and traffic accident causes are analyzed. According to preliminary investigations, driver fatigue, speeding, and poor highway conditions are the main causes for accidents. The main problems about highway conditions have been analyzed from the following three aspects of roadside circumstances: highway, alignment, and traffic safety facilities. Finally, safety countermeasures are put forward, which consist of improving highway circumstances, adding traffic safety devices, and strengthening driver training.

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