Could autonomous vehicles put last-mile delivery on the fast track?

To make ALMDVs a daily reality, the first step is legislation. There are various ways to categorize AVs: people-carriers or goods-carriers; operating on public roads or private property; high speed or low speed, and so on. But which type of regulations should be apply to the Autonomous Last Mile Delivery Vehicle (ALMDV)? Is it a vehicle, a non-motor vehicle, a personal delivery device, or a robot? The answer to this question ultimately determines which lane an ALMDV will be allowed to drive.