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A pair of self-driving shuttle buses should begin motoring around Ann Arbor, Mich., later in April in an ambitious test of the new technology.

With cars becoming more fuel-efficient, the revenue from gasoline taxes is declining, leaving New Hampshire with inadequate funds to maintain roads and bridges, according to state Rep. Norman Major (R-Plaistow), chairman of the House Ways and Means Committee.

Pennsylvania will ask Uber Technologies Inc. and any company developing self-driving cars with the same technology onboard to immediately stop testing.

One of the more puzzling questions arising from the revolution in autonomous vehicles and on-demand services is what impact it will all have on cities.

On a blustery spring day that showed exactly why Michigan’s range of weather is perfect for testing self-driving and connected vehicles, the American Center for Mobility formally opened and announced a far-reaching deal April 4 with Microsoft.

Houston will join 21 other cities in a national partnership aimed at addressing persistent transportation challenges as technology and mobility choices have planners rethinking how streets, sidewalks and private spaces interact.

After years of calling to restore highway user revenue, transportation advocates may see the funding return by fiscal 2020.

Over and over in their decadeslong war on smog, Southern California regulators have failed to use a powerful tool against ports, warehouses and other freight and logistics hubs that are magnets for air pollution.

The fatal crash involving an Uber self-driving car in Arizona last month has not dissuaded the North Carolina Turnpike Authority from urging companies to test autonomous vehicles on the Triangle Expressway in western Wake County.