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Abstract
This paper assesses pedestrian crossing behavior and critical gaps at a two-way midblock crossing location. A critical gap is the shortest gap that a pedestrian accepts when crossing a road. A dataset was collected in 2017 in Edinburgh (UK). The analysis was performed using the fuzzy logic system. The adopted membership function of the fuzzy logic system is of a triangular form since it has a simple and convenient structure. The input variables that are used in the analysis are the number and length of rejected gaps and length of accepted gaps at the crossing location. The output variables are the critical gaps. The results show that assessing critical gap estimation of pedestrians crossing using fuzzy logic is achievable and produces reasonable values that are comparable to values that are reported in the literature. This outcome improves the understanding of pedestrian crossing behavior and could therefore have implications for transport infrastructure design. Further analysis using additional parameters including waiting time and demographic characteristics and alternative forms for membership functions are strongly encouraged.
Highlights
Pedestrian crossing behavior and activities while using the road network have always been identified as causing factors associated with pedestrian accidents in urban and in rural areas
Pedestrian crossing behavior is determined by a critical gap, which is defined as the shortest gap that the pedestrian would accept
The results show thegap critical gapobtained values fuzzy system are shown in Figure results show that thethat critical values obtained the proposed fuzzy logicand system input data ranges from
Summary
Pedestrian crossing behavior and activities while using the road network have always been identified as causing factors associated with pedestrian accidents in urban and in rural areas. Many crossing locations in urban areas are not signalized At these locations, pedestrians need to wait for a safe gap to cross the road. Pedestrians need to wait for a safe gap to cross the road In these cases, each pedestrian has to assess each gap in traffic, reject one or more before accepting a convenient gap according to their physical ability, risk taking attitude, age, gender etc. In order to assess the usefulness of these refuge islands it is crucial to study the gap acceptance behavior of pedestrians at such locations. Pedestrian decision-making and risk-taking during road crossing can be studied through monitoring and observation of pedestrians’ behavior and crossing activities [1,2,3,4,5,6,7,8,9]
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