Accidents in Mass Transit Systems

Abstract

The chapter presents the results of a spatiotemporal analysis of accident occurrence of the trolleybus mass transit system in Mexico City. Chi-square analysis for goodness of fit method was employed to assess the relationship between the temporal variables and the accident occurrence. The ArcGis software was used for the analysis of the spatial visualization. The employed data were for 2017. The main conclusion were a) accidents do not have a uniform distribution weekly and hourly (All lines and Line A), on weekdays and the seasons of the year for Lines B and C, and crashes occurring hourly for the case of lines D-G; b) there was not a relationship between weekdays and hourly accident occurrence when considering the seven lines altogether and Line A; c) the most-affected boroughs were those related to Cuauhtémoc (27%), Coyocan (21.6%), and GAM (20.5%); they accounted for 69.1% of the accidents; and d) the peaks of trolleybus accident occurrence depend on the lines, that is, Line F (one peak of hours), Lines B-E (two), and Lines A and G (three).