When a Highlands Ranch woman suddenly veered off U.S. 285, down an embankment and into an aspen grove on the side of Red Hill Pass, she was found five days later suspended upside-down in her car with her feet crushed and her ribs broken — barely clinging to life. Could a highway capable of detecting when a vehicle abruptly leaves the roadway have been able to summon help for Kristin Hopkins within minutes of her violent and undetected 140-foot roll off the pass in Park County four years ago? Tim Sylvester, the CEO and president of Kansas City, Mo.-based Integrated Roadways, thinks his startup company’s “smart pavement” — bristling with sensors and the latest fiber-optic and wireless technology — could be a lifesaver in mishaps such as the one Hopkins survived. The company is teaming up with the Colorado Department of Transportation to test a half-mile of smart pavement later this year — at the very site where Hopkins’ car plunged over the side of the road in April 2014.