Driver’s Speed and Stop/go Decision During the Onset of Yellow: A High-Speed Urban Mixed Traffic Intersection Case Study
Keywords:
Dilemma zone,, Motorcyclist, road crashAbstract
The signal transition period is the critical time at the signalized intersection. This study reveals driver’s approaching speed and stop/go decisions during the onset of yellow light. The top-view video camera is used to record 824 driver’s behavior approaching to the high-speed urban signalized intersection. The results found that the vehicles’ approaching speed in this study is lower than those in the developed country, with the same speed limit of 80 km/hr. The behavior of passenger cars and motorcyclists are different both in terms of speed choices and stop/go decisions. The motorcyclists have a lower approaching speed. They are more likely to decide to pass the intersection although they have longer distance behind the stop line or trapped in the intersection’s dilemma zones. This study points out that the motorcyclists are vulnerable road user with high risk exposure and severity in high-speed mixed traffic intersection and suggest that further researches are needed to cope with these highlighted safety problems.
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