Abstract

Traffic safety measures are generally designed based on historical traffic accident data. Therefore it is difficult for us to evaluate the exact effect of proposed junction modifications until the works are constructed and new accident data gathered. In particular, safety improvements may be designed in accordance with existing traffic flows, but the characteristics of traffic flow will change once the improvements are made. To address this problem, we examined the use of micro-traffic simulation using software packages NETSIM and Simr to model the effect of junction safety improvements. Actual case studies were modelled, and as a result, new safety evaluation techniques for junctions are proposed. traffic safety, traffic accident, simulation, intersection, junction

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