Truck parking "is a nightmare after 4 or 5 p.m.,” professional truck ­driver Charles Rudd said. But private-sector parking models are emerging to fill the gaps left by public parking.

Fleets are increasingly utilizing wellness programs and technology to prioritize their drivers' health and wellness, in efforts to improve driver morale, performance and retention.

The Department of Transportation said more work is needed to ensure the safety of Mexican trucks and buses awaiting permission to drive on U.S. roadways, the Associated Press reported.