apj283

Trying to incorporate a GTFS route sequence into service area analysis layer

Discussion created by apj283 on Nov 15, 2010
Latest reply on Jul 19, 2013 by MMorang-esristaff
Hello all,

I am working on a research project that looks at the maximum distance a person can travel by bus from a given intersection within one hour at specified time intervals, such as 4:00 PM.

To do this I have created a route shapefile and stop points from the GTFS (Google or General Transit Feed Specification) data

For each stop on each trip along each route I have the arrival time and departure times of the buses, which I have standardized into impedances by calculating the hours elapsed since the beginning of the interval. My problem is that I am unsure of how to restrict transfers to trips that have not already occured (i.e. the total accumulated time impedance < departure time of trip) and then how to make the solver adhere to the trip sequences once a transfer has occured.

This problem has been stumping me all week; any help would be greatly appreciated!

Thanks,

Andrew

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