عثمان ਉਸਮਾਨ bgo_eiu
Accessible=no seems appropriate. I was thinking about it and with the way relations are used for public transport, this is info that can be derived from tags already in use. If there is a stopping location node is on a way which is tagged as having no sidewalks, that would be specific enough so long as the way is split where the sidewalk ends. That also seems kind of inline with the MTA's "bus stop rightsizing" guidelines where they talk about the accessibility of the stop in terms of how the platform and stopping position relate