Variable speed limits (VSL) continue to be experimented with and at times are confusing to human drivers, meanwhile self-driving cars will readily accommodate VSL.

Variable speed technology allows for a much wider range of peak efficiency operation, which maximizes energy capture and minimizes the excessive loads placed on the turbine’s drive train.

It also proves the effectiveness of variable-speed drive (VSD) technology at optimizing chiller energy performance in all conditions, even high-load operations. It’s widely recognized that a chiller ...

Beginning next Monday, drivers will see new variable speed limit signs throughout a 10-mile stretch of U.S. Highway 97 south of Bend, ODOT said Wednesday.

Reducing these crashes is one goal of INDOT's proposal to use variable speed limits on the southeast side of the I-465 loop. The speed limits would drop in 5 mph increments to as low as 45 mph ...

The first is variable speed limits. Sensors would monitor congestion on I-465 and automatically reduce speeds from the usual 55 mph to 50 mph or even 45 mph, depending on traffic.

New signs displaying variable speed limits have been placed along a 15-mile section of northbound Interstate 95 south of Washington, intended to reduce the risk of crashes as vehicles approach ...