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Uber’s self-driving cars returned July 24 to Pittsburgh’s streets four months after one of its autonomous SUVs hit and killed a woman crossing a street in Tempe, Ariz.

GM Cruise is running neck-and-neck with Waymo, a subsidiary of Google, to be first to bring fully autonomous cars to market. The two companies are considered the leaders in a crowded field, and San Francisco is the proving grounds to refine the technology.

While a “two striper” in the Air Force 60 years ago, Robert Carpenter invented a color-coded system for attaching tractor-trailer air-brake connections that now is mandatory equipment for every truck on every American road. He was paid $20.

Uber laid off its team of self-driving car safety drivers in Pittsburgh on July 11, the company confirmed.

A November ballot measure to repeal California’s recent gas tax increase threatens road improvement and maintenance projects that receive funding through the tax.

The AAA predicts a record-breaking 46.9 million Americans will travel 50 miles or more away from home for the Independence Day holiday, an increase of more than 5% compared with last year’s prediction and the highest number since AAA started tracking travel 18 years ago.

Self-driving shuttle buses will be hauling riders around downtown Columbus later this year, a significant move as the city begins initiatives aimed at making it a “smart city” for transportation.

In a bid to achieve the practical use of self-driving flying cars in the 2020s, the government will establish a public-private council possibly within this year to discuss safety issues, technological development and other matters, Japanese newspaper The Yomiuri Shimbun has learned.

Jesse Pilant tries to avoid any unsavory places while driving, but that hasn’t stopped him from seeing women and young girls going from truck to truck late at night.

The Occupational Safety and Health Administration has opened an investigation into a fatal accident at XPO Logistics in Lockport, N.Y., early June 25.