buses (vehicles) on a street segment?

[James Bunch]

Does anyone have an app, or code to calculate the number of vehicles on a street segment (between intersections) by direction and time period from a gtfs feed?  I need to account for stop, skip stop, and closed door service express service that are travelling over the street segment, and not just the # of vehicles that are scheduled to stop at bus stops within the segment.

Jim Bunch

[JP]

Hi Jim,

The columns pickup_type and drop_off_type in stop_times.txt give you the interactions at a stop point, i.e. whether a drop off and/or a pick up is scheduled at a stop.

JP

[James Bunch]

yes, stops and service between scheduled stops is pretty easy.  I'm looking for an app that sums the vehicles on the underlying street segment, even they are a mix of closed door, skip stop, or all stop service.  see below

bus 1 closed door   ----------------------------------------------------------------------------------------------------->

bus 2 all stop           +------------------+-----------------------+--------------------------+---------------------+--->

bus 3 skip stop        +------------------------------------------+--------------------------------------------------+--->

bus 4 skip stop        --------------------+----------------------------------------------------+------------------------->

If each bus runs a 15 minute headway there are 16 buses per hour on the street segment. but varying buses per hour stopping at each stop.  What I want is the buses on the street segment.