Service coverage factors affecting bus transit system availability

Over the last few years, transportation policies have aimed to shift transport demand from private car to transit systems. Toachieve this objective, supplied transit services must be available to as many users as possible. Access to transit stops is animportant factor. This research focuses on defining the service coverage area of a transit service, which is the area withinwalking distance of a transit stop, using a methodology suggested by the Transportation Research Board. The aim of thisresearch is to calculate service coverage area for a transit system operating in the urban area of an Italian city. The resultsshowed that street connectivity factor, grade factor and population factor have great influence on the determination of servicecoverage area, whereas pedestrian crossing factor does not impact service coverage area. However, grade factor wascalibrated for American cities and does not fit the case of European and Italian cities, which have different topographicalcharacteristics.