Experimental "direction_id" in GTFS RT Spec Could Replace Custom NYCT Extension

[Filippos Sakellariou]

Hello everyone,

I noticed that GTFS RT has added an experimental "direction_id" field to TripDescriptor. This new field seems to do the same as "nyctTripDescriptor.direction" which is currently defined as a custom NYCT extension. I was hoping we could get support for the experimental "direction_id" as it's part of the mainline spec and easier to integrate through libraries like GTFS Realtime Bindings. 

Please let me know if that sounds plausible or if I've perhaps missed something.

Thanks!

Filip