I know that numerous icons had been suggested already and you will probably not be adding too many. But, I feel like it doesn’t make sense that there’s a default icon for a cable car, which is not a very common type of transport, but there are no default icons for many common types of transport such as bus, train, metro, tram, bicycle, and ship. “No cars” and “no entry” icons would be useful as well.
Your points are valid. I’ll keep them in mind and the next time I update the icons I’ll include them.