How to calculate PT travel time via transitRouter (by ActivityFacilityImpl)?

[jingjunL]

I am writing a Listener to calculate the PT travel time during a specific second in the last iteration of my MATSim run.

I understand it needs to use router, so what I did was I first use: TransitRouter transitRouter = event.getServices().getInjector().getInstance(TransitRouter.class);;

However, different from the router for car (which just needs the Coord of origin and destination), the method: transitRouter.calcRoute() need to use the RoutingRequest as input variables.

I tried to find some types that can probably be used in this situation, and I found ActivityFacilityImpl.

However, the ActivityFacilityImpl needs to insert a Coord and linkID.

I have two questions:

1. Am I still on the right track for calculating the PT congested travel time?
2. If so, what are the differences between Coord and linkID in ActivityFacilityImpl. If I insert a coord and linkID that are very far away from each other, which attribute will be used in MATSim PT routing?

Thanks :)