While Ford's autonomous vehicles are learning to drive on Miami's bustling streets, the company is simultaneously mapping out a business strategy for the driverless future by tapping local merchants for input on its first purpose-built AV.

Why it matters: The U.S. market for AVs will be $332 billion by 2026, according to Ford. About 40% could be for goods delivery including small businesses that are often constrained because they can't afford to hire drivers or buy delivery vehicles for only sporadic use.

The background: Ford is testing a small fleet of AVs — with safety drivers but simulating fully autonomous operation — in hopes of deploying tens of thousands of self-driving vehicles to move people and goods in multiple cities, starting in 2021.

Lessons learned from those tests — about preferences for interacting with driverless vehicles and how the car's interior might be configured to keep food orders separate or dry-cleaning pressed — will influence Ford's AV design and refine its business strategy.

• Today, ride-hailing costs about $2.50 per mile. Cut out the driver and Ford estimates that cost could fall to $1 per mile, boosting demand.
• Add in revenue from other things like fleet management, deliveries and digital content and they think the profit potential dwarfs the 6%–10% margins of traditional auto-making.

To ensure a profitable business, the company says it will need to keep its AVs running round-the-clock:

• During peak commuting times, they'll be used mostly for ride-hailing by people looking to complete the "last mile" of their trip.
• During business hours they could be used for delivering packages or food.
• In the evening, they might be turned into roving party buses, ushering fans to a concert, for example.

Details: Ford is working with 7 local Miami merchants to assess the level of demand for commercial deliveries using AVs. The 2 month trial was eye-opening, Lydia and Roland Losas of Giralda Dry Cleaners told me.

• By assigning the AV test vehicle to bring dirty laundry from their four stores to their central cleaning plant, they freed up 2 employee drivers to serve customers at luxury hotels.
• Using an AV for laundry delivery helped them avoid costs like car payments, liability insurance, gasoline, tolls and part-time seasonal help.
• They think it opens the door for new growth opportunities like wash-and-fold services for college students, Lydia said.

The bottom line: Automakers are targeting small businesses as a potential market for AVs that might fill their intermittent needs, allowing them to save on labor and fixed costs.