Research on design speed of TER (truck escape ramp) was carried out in order to make it more cost-effective and safer. The data of 9 TERs of Yuanmo Expressway has been collected. Back analysis method was brought forward and adopted to analyze the speed of out-of-control vehicles entering arrester bed. According to distribution of vehicle speed data, the speed of vehicles losing braking capabilities that met a probability were obtained, which could be used to determine TER design speed. The result also showed that 99 percent of vehicles' speed was lower than 102.2 km/h, which was much lower than the speed of 130 km/h introduced internationally. The TERs designed by using this result has opened to traffic for one year. No traffic accidents occurred yet caused by improper settings of TER.
Determining Design Speed of Truck Escape Ramp Based on Back Analysis Method
Seventh International Conference on Traffic and Transportation Studies (ICTTS) 2010 ; 2010 ; Kunming, China
Traffic and Transportation Studies 2010 ; 969-976
2010-07-26
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Determining Design Speed of Truck Escape Ramp Based on Back Analysis Method
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