[cheriot]

Interstates are more consistent than local roads. I'm surprised long haul trucking isn't the first target for these companies. Driving 20 hours straight and pulling up next to a local driver for the last mile would be faster (human drivers are required to sleep) and save a bunch of money.

[modo_mario]

Consistency is key in automation. Other than the cost of automation itself consider the big big costs when those irregularities do exist, the big cost of the systems made to account for and handle those potential failures and the fact that as almost always there's more of those failure points than you expect.