Affiliation(s)
1. Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia;
2. Department of Infrastructure and Geomatic Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia
ABSTRACT
Accidents are in rising mode and became the main problem all over the
world especially in Malaysia as the reasons including the condition of the
road, driver’s reaction and the road environment. Actually, those condition
also factors to execute the lane changing which experienced by all drivers such
as in U-turn road segment. In approaching U-turn segment, drivers needed to
make a decision whenever any disruption in front of them such as merging
vehicle because they have their own perspective and desire. For that purpose,
this research is focusing on the reaction of the driver in approaching the
U-turn facility road segment especially in speed (V), reaction time (RT)
and distance where from those parameters and their relationships, the
statistical model was developed and used in estimating the safe distances to
execute the lane changing from the merging vehicle. The data were taken from
the field and driving simulator to come out with the raw data. The field data were from video recording
that has been used to simulate the driving simulator. Therefore, through the
relationship between the RT, speed (V) and distance of the subject vehicle
to the merging vehicle, the statistical model has been developed with the
equation DAMVUT = (13.448
+ 1.410 RT – 0.075 V).
KEYWORDS
Lane changing, merging, U-turn.
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