threadwhisperer

Metros are built out of the way. They shouldn't kill people because there are a few stations of track that they can kill people.

This is demonstrably false. There are many metro systems with tracks on viaducts and at-grade (e.g. "open air"), with GoA 4 control systems.

These systems can and do detect objects on the track. They also deal with severe weather (heavy thunderstorms, snow, etc).

I think you're discounting the experience of delivering railway systems without considering lessons that could be learned in deploying them, and applying that to self-driving cars.

Never been to Shenzhen but as a Malaysian, it looks a lot like a roti canai, which is an Indian-influenced flatbread. There are frozen ones sold internationally (I've personally seen them in grocery stores in the UK and South Korea) so they may be available where you are. It might be called either roti canai or roti paratha on the packaging.