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In the endless quest to make trailers lighter, sturdier and more thermally efficient, some trailer manufacturers are expanding their use of composite materials, which could offer the potential for a higher strength-to-weight ratio.

Not all fleets are convinced of the benefits of air disc brakes. But suppliers maintain there is a growing acceptance of them for heavy-duty trucks, driven by an increase in the deployment of active safety technology, such as collision mitigation and avoidance systems.

At Memphis International Airport, drones may soon be inspecting planes and delivering airplane parts for FedEx Corp. In Reno, Nev., they will test airlifting life-saving defibrillators to patients. And customers in Virginia could be awaiting Alphabet Inc.’s flying devices to get goods they ordered.

UPS Inc. plans to deploy a small fleet of futuristic, boxy-looking all-electric delivery trucks as part of a pilot program in London and Paris by the end of this year.

Uber believes its self-driving software that chooses how to react when it detects objects in the roadway is the cause behind a fatal collision between one of its vehicles and a pedestrian.

LONG BEACH, Calif. — Roush CleanTech unveiled its all-electric technology in a Ford F-650, marking an expansion of its alternative-fuel market beyond propane autogas and compressed natural gas.

LONG BEACH, Calif. — Solar technology provider eNow unveiled a 53-foot refrigerated trailer with solar panels mounted on its roof, calling it the first such all-electric solar-based refrigeration system to be deployed.

FRISCO, Texas — The nation’s first self-driving car service for the public will begin here in July.

LONG BEACH, Calif. — Dana Inc. and Workhorse Group Inc. showed a concept model medium-duty truck designed for city delivery featuring Dana’s Spicer Electrified, an integrated e-drive axle whose lighter weight allows for higher payloads.