The paper presents an overview of solutions used for detection systems at high-speed rural intersections. Based on identification studies of the functioning of intersections located on national road sections, a simulation model was built in the Vissim program.It was used to determine the optimal detection range to improve traffic safety at the intersection. The ‘average number of vehicles in the dilemma zone’ was used as the primary safety assessment metric. Preliminary results of the simulation analyses indicate a clear influence of the detection area on traffic safety.
Both a detection range that is too short and one that is too long can lead to a deterioration in road safety.
THE INFLUENCE OF THE DETECION RANGE ON TRAFIC SAFETY ON RURAL SIGNALIZED INTERSECTIONS
Abstract
The paper presents short review of the detector design on high speed rural signalized intersections. On the basis of the research conducted at rural signalized intersections the simulation model imitating its functioning has been developed in Vissim. Simulation model was used to determine optimal detection length to achieve higher traffic safety level. ‘Average number of vehicles trapped in the dilemma zone’ was used as the basic indirect safety measure.
The preliminary results of the simulation show significant effects of the detection range on traffic safety. Too short detection as well as to long may have consequences in worsening traffic safety. (…)
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Source: Logistyka Magazine