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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.

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.

Groups representing truckers and other motorists asked a federal judge April 2 to halt the Pennsylvania Turnpike Commission’s payments to PennDOT for state transportation projects while the court decides their claims that turnpike tolls are unconstitutionally excessive.

WASHINGTON — On the campaign trail, President Donald Trump reiterated his pledge to “Make America Great Again” by reinvesting in infrastructure projects around the country. The news was greeted favorably by not only voters, but also municipal governments and the transportation industry.

When a woman crossing an Arizona street was struck and killed by a self-driving Uber car late last month, it sparked a swift public reckoning over the near-term future of autonomous vehicle testing on public roads.

California began accepting applications April 2 for permits to deploy self-driving cars on public roads without a human backup driver at the wheel.

Stock prices opened the second quarter with another sharp decline April 2 as investors grew increasingly worried about the rising U.S. trade dispute with China and a flurry of problems hammering the nation’s marquee technology firms.

Russia-based AirBridgeCargo Airlines will become the fifth international air cargo freighter operator at Rickenbacker Airport this week when it launches weekly scheduled flights April 5.