Trips that start or end on Metro-North — the Harlem, Hudson, or New Haven lines — and connect through New York by subway. It puts the whole journey together: the drive or walk to your station, the parking buffer, the train, the transfer at Grand Central, the subway leg, and the last walk to the door. Starting somewhere the trains do not reach, like across the river in New Jersey, gives you a driving leg to Grand Central instead of a route that pretends you can walk it.
Because a car that shuts its engine off at a red light looks exactly like a car that has arrived. Onism now holds a trip open for three minutes — sized for the longest realistic light — and only closes it if nothing moves in that window. If the drive really did end, the end time is backdated to the moment movement stopped, so those three minutes never show up as driving time.