Toll lanes along U.S. 36 between Denver and Boulder and a nearby segment of Interstate 25 will get a high-tech upgrade starting this fall as part of a test to more effectively relieve traffic tie-ups and provide more reliable travel times for motorists. If it works in those heavily traveled stretches of highway, so-called dynamic tolling that sets prices based on traffic volume and speed could be rolled out to various other highway corridors in Colorado where similar toll lanes are currently being built or are in the planning stages, such as the Central 70 project in Globeville, the Gap project on I-25 south of Castle Rock and the soon-to-be expanded C-470 in Douglas County. “This is the most technologically advanced way to respond to what is going on out there on the road,” said David Spector, director of the Colorado High Performance Transportation Enterprise, a division of Colorado Department of Transportation and the state’s tolling authority.