As I said elsewhere, I do not think a constant wireless connection will be an issue, because I don’t think you’ll be operating the truck remotely the way a hobbyist operates an RC car. The truck will brake when a car, pedestrian, or bicycle cuts it off, and do it better than you could.

You are there to route it around traffic jams, talk to the foreman on site, and choose the loading bay.

Even if you had a reliable high-bandwidth/low-latency connection, the truck will be better than you are at handling things that requires instant response. You are there to make decisions.