Shared automated vehicles: Big impacts for cities, local agencies

Fully automated vehicles (AVs), or driverless cars, will be commonplace sooner than you think. Right now, car makers and transportation network companies such as Uber and Lyft are steering AV development. Without public input, this market-driven approach could worsen traffic congestion, sideline public transit, and increase social inequities. It could also hit state and local budgets hard, as revenues from taxes, parking, and associated activities dry up.

But it doesn’t have to be this way. New research centered at the University of Minnesota shows how, by planning carefully for AVs, we could make the most of this technology revolution to improve transportation and make it more equitable for all.

In a recent study, a large interdisciplinary team examined the potential of one approach: shared automated vehicles (SAVs). The team examined not only how SAV networks could work but also what the impacts on society might be.

The researchers examined considerations around the rollout and regularized use of a hypothetical SAV system in Minneapolis–St. Paul. They explored several scenarios with increasing levels of SAV adoption.

From their analysis, the researchers say SAV systems are feasible—and possibly very beneficial—in communities like the Twin Cities. They show how the technology could work and where revenues could come from. They show how SAVs could strengthen— not weaken—existing transit systems. And they illus- trate what future streets could look like.

The report concludes with key recommendations for policymakers, planners, and other officials. Among the recommendations:

• Revenue sources such as fuel taxes, parking fees, and fines will dry up. On the other hand, SAV providers that use public infrastructure and customer data could be a source of revenue. Communities should adjust budgets accordingly—and not sell the rights to mobility services cheaply.
• Cities should start to plan how land that is currently devoted to parking and roads can be repurposed to address sustainability, equity, and housing affordability goals.
• Policymakers should seek ways to use SAVs to connect people in low-density or poorly served areas to existing transit services.
• The entire transportation system should be designed for diversity, serving all areas and different populations and user needs.
• AVs will disrupt jobs for many people who drive for a living. Policymakers should mediate this disruption.
• SAV development should include public engagement—and should not be planned and controlled solely by private interests.

This research was funded as part of a National Science Foundation (NSF) Smart and Connected Communities grant (award no. CMMI-1831140)— Leveraging Autonomous Shared Vehicles for Greater Community Health, Equity, Livability, and Prosperity (HELP). Support also came from Dayton Hudson Foundation funds at the University of Minnesota Foundation.
—Ann Nordby, CTS freelancer

Learn more:

• Project page with summary report and additional resources.

What are SAVs?

Definitions vary, but here are some basic concepts as used in the U’s report:

• Shared automated vehicles might look like today’s passenger cars or shuttle vans. They could carry 2 riders—or 12.
• Instead of onboard human drivers, they could be controlled by a smart cloud computing system or by remote human drivers, similar to drone pilots.
• They wouldn’t be owned by individuals or parked in a homeowner’s garage. Off-duty, they could be housed far from riders.
• They could be ordered up for service the way Uber or Lyft rides are today. Or they might be small buses, part of the public transit fleet.
• They could take riders all the way to their destinations or connect them to transit stops.
• They are now in the testing phase or in limited use as airport shuttles and goods delivery carts, for example.

From alleys to arterials: street designs

Researchers in the U of M’s College of Design created detailed designs for the four main types of AV-ready streets: alley, local, collector, and arterial.