A Study on Traffic Safety Parameters under Mixed Traffic Flow
Date Issued
2015
Date
2015
Author(s)
Hung, Yu-Kuan
Abstract
Mixed traffic flow is the most common traffic situation in urban areas in Taiwan. The motorcycles are usually thought to be the source of chaos. The reasons are that the size of motorcycles is small, and they do not have their own lanes, weaving among the hurtling cars and heavy vehicles like a seamstress in search of a seam. The action makes traffic unsafety and without regular rules. In this study, it picks up some traffic safety related parameters, ”Direct”, “Dummy Lane”, “Acceleration Noise” ,and does some adjustment on them in order to make these be calculated by a computer. Also, it discovered that the “Direct” and “Acceleration Noise” can reflect the difference of the amount of motorcycle related accident density of different road designs, the exclusive motorcycle lane. However, comparing the values of these parameters which were output from several different scenarios of the VISSIM simulation experiments. It found that only the “Direct” parameter fit the result mentioned above. The “Dummy Lane” and “Acceleration Noise” can only reflect the traffic flow conditions of different road designs in simulation environment. Above all, the design of the exclusive motorcycle lane make some good influences to the traffic. It exactly prevent the motorcycles from conflict with other vehicles, and reduce the amount of motorcycle related accident density.
Subjects
Direct
Dummy Lane
Acceleration Noise
mixed traffic flow
exclusive motorcycle lane
accident density
traffic simulation
Type
thesis
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