How does the Transit Accessibility module account for service characteristics?
The Transit Accessibility module accounts for service characteristics given a target period, the hours for which can be set in the Analysis Module Parameters Manager. The module compiles transit network data, including routes, stops, and schedules, from General Transit Feed Specification (GTFS) feeds available through Transitland. Service routes and stop times are selected per the given parameters for a target period, selected for the day with the most frequent service scheduled (generally a Tuesday to Thursday weekday schedule). By default, the parameters are set from 7:00 AM to 10:00 AM to reflect peak service frequency during daytime commuting hours. More frequent service, i.e. shorter headways, and faster transit service will generally yield better accessibility outcomes due to lower waiting and travel times.
The Analysis Module Parameters Manager screen for the Transit Accessibility module is shown below.
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