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Lessons Learned at Connected Vehicle Test Sites

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Oct. 2, 2020—Back in May, ADAPT introduced you to three connected vehicle test sites that are administered by the U.S. Department of Transportation. The Connected Vehicle Pilot Deployment Program started in 2014 and launched on-road connected systems in Wyoming, Florida and New York.

Check out a couple updates from two of the sites, including a very large cellular bill and a growth opportunity.


Tampa, Fla.

The Tampa Hillsborough Expressway Authority was an experiment in connected systems in an urban environment. In this case, it’s a busy business district in the Gulf city. The DOT set up onboard connective units in 1,000 vehicles and roadside units in 47 locations along the express lane.

While the Authority was able to connect most of the roadside units on a reliable underground fiber optic connection, a cellular connection was needed to complete the system and incorporate the Traffic Management Center, according to a lessons learned report from the DOT. The Authority set up the connection on a plan of 5gb per month, similar to what you might purchase for your cell phone. That needed to be upgraded in 2018 to 20gb per month, the report says.

The cost became $100 per month for each unit, coming to $4,500 in monthly cellular costs.

“As an agency, this is a high cost in the long-term,” the report says. The Authority is looking into a way to complete a fiber connection with the Traffic Management Center.



The Wyoming Department of Transportation Connected Vehicle Pilot Program was set up along Interstate 80, a rural stretch of freeway in the state. Among other benefits, the Wyoming test site has been valuable for the “use of the technology to mitigate safety impacts of inclement weather in rural corridors,” according to an update report

Now, the Colorado Department of Transportation is setting up roadside connective infrastructure for a similar system to Wyoming’s. The two states share borders, and a Colorado DOT team traveled to Wyoming to learn about what has been learned in testing.

The agencies shared information on the technical processes behind sending out traffic reports to drivers and other engineering challenges.

Furthermore, the city and county of Denver will also gain from Wyoming’s testing for its own connected vehicle system, the report said. a

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