According to the spec if a stop_time is Timepoint::Approximate then arrival/departure_time doesn't have to be present (it's up to the consumer to interpolate the times).
If the timepoint column isn't present at all then technically I think that at least the first and last stop_time of trip must have times but this seems like too much validation at this point on basic transit structs (maybe when Runs are introduced).
According to the spec if a
stop_timeisTimepoint::Approximatethenarrival/departure_timedoesn't have to be present (it's up to the consumer to interpolate the times).If the
timepointcolumn isn't present at all then technically I think that at least the first and laststop_timeof trip must have times but this seems like too much validation at this point on basic transit structs (maybe when Runs are introduced).