Motorcyclists’ road safety related behavior at access points on primary roads in Malaysia – A case study
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An observational study, focusing on motorcyclists, was conducted between June and August 2012 at access points on straight road sections of primary roads in Malaysia. This was done in order to gain more insight into the actual road traffic situation at these sites. The majority of the motorcyclists kept to the speed limit and lowered speed when approaching an access point, especially when road users were on it. However, when the primary road traffic volume was high, they maintained higher speeds compared to other vehicles. The behavioral observations revealed a risky right turning movement, i.e. Opposite Indirect Right Turn (OIRT), from the access point into the primary road. Motorcyclists generally had a high compliance rate of helmet (except for female motorcyclists) and headlight usage. Motorcyclists attempting to enter the primary road were poor at utilizing the turning indicator. They were observed not to turn their heads to look for vehicles when entering a road with a low volume of traffic, compared to entering a road with a high volume of traffic. Most of the motorcyclists did not comply with the stop line rule, especially those who made the OIRT. Motorcyclists entering from the access point are involved in serious traffic conflicts to about the same extent as other vehicles. Moreover, motorcyclists who stopped at the stop line and made a right turn into the primary road by accepting a short gap, resulting in a time lag of less than 4 s, were involved in the majority of the serious conflicts.