Grass would be more of a hassle. Once the plants have properly rooted down, the tracks shouldn’t need any watering or routine cutting. I’m guessing that the trams themselves prevent most of the plants from growing too long. As can be seen in the first picture there, the plants between the rails are shorter than those between and outside the two tracks.

Thanks for notifying. Should be fixed now.

G definitely points to a jet. A private jet to be more specific.

Skynet theories aside, the whole “AI will solve trafic” thing is just dumb. Sure, I suppose we could one day perfect a system of cars working as a hivemind to optimize the flow of trafic, but that just makes it impossible for anyone not part in that hivemind (cyclists etc.) to use the road.

I suppose the “just one more lane bro” joke sort of applies here in that the problem caused by cars would be “solved” by doubling down on cars.