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As fleets know, many variables can affect test results for truck fuel-saving technologies and practices.

Camera monitor systems designed to replace a truck’s conventional side mirrors are getting favor­able reviews from drivers, according to exec­utives at fleets that are testing the new technology, which also recently received a nod of approval from federal regulators.

Camera monitoring systems promise to improve highway safety by giving truck drivers better visibility around the outside of the truck, but removing the mirrors could force highway safety inspectors to change their practices, according to the executive director of the Commercial Vehicle Safety Alliance.

Walmart Inc. has quietly withdrawn from one of Google’s marquee efforts to challenge Amazon.com in e-commerce.

Large freight railroads functioned with the use of automatic braking technology for 83.2% of miles required by law, the Association of American Railroads announced Jan. 24. That proves the Class I railroads met 2018 requirements, and they are expected to finalize the implementation of positive train control technology by the final deadline of Dec. 31, 2020.

Equipment and component manufacturers in the trucking industry are looking to expand their online presence and also see potential in 3D printing, both of which could help them reach more customers, they said.

A growing economy and strong new truck sales have increased demand for aftermarket parts, creating supply chal­lenges. Truck manufacturers and component ­suppliers said they’re working to alleviate pressure on the industry by expanding offerings, ­improving distribution channels and using predictive forecasting tools to get ahead of demand.