Also specified the number of levels on the parkade.

I left the train area alone because I don't know much about train-related best practices yet. That said, we might want to delete the train station node, and move the stop positions.

And while I'm on the subject of the train area, the new underground passages leading there still need to be mapped.

I gave the bus stops separate "public_transport=stop_position"s in order to put "direction=forward" on them, because of how the routes confusingly loop back on themselves here.

I think it's also worth signposting that I don't know how (if at all) "public_transport=stop_area" relations should be used here.

Specified that street parking has no markings.