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Days after a fatal self-driving-car collision in Arizona, six makers of driverless vehicles came to San Francisco on March 22 to demonstrate their technology — and emphasize its safety features — to city leaders and public-safety officers.

Police in Tempe, Ariz., on March 21 released dashcam videos of the fatal accident March 18 in which an Uber car operating in autonomous mode struck and killed a pedestrian, showing the car did not slow down or alter its course to avoid her.

It’s time to raise the federal gas tax to help fix Michigan’s ravaged roads, Michigan Gov. Rick Snyder said March 20.

You can get everything from food and clothing to tools and toys at Walmart. Now, add packing and shipping to that list.

Guadalupe Road in south Victoria County, Texas, was brand new in August 2016 after the county spent $200,000 to repave it for the first time in decades. But in the last few weeks, it began to crumble and crack, forcing county crews to patch up the deteriorating surface.

Shipping containers are piling up on the Portland, Maine, waterfront at a record pace as the state invests millions of dollars into its largest port to encourage the state’s growing trade links to Europe and the North Atlantic region.

In an often-passionate debate, advocates squared off March 14 in Connecticut for more than five hours in the long-running battle for electronic highway tolls that has split the legislature.

Could the airport in South Bend, Ind., be transformed into a rail-to-air freight hub for international shipping companies that would create hundreds of jobs?

Ride-hailing company Uber is in talks to start selling its self-driving technology to Toyota Motor, Japanese media reported March 16.