The Autonomous-Car Chaos of the 2004 Darpa Grand Challenge

As Sandstorm turned the first corner and started to disappear into the open desert, its laser scanner detected a clear path ahead, and its detailed map data said it was time to hit the throttle. Sandstorm’s wheels spun, kicked up dust, and carried it away at more than...

Covid-19 Spurs a Road Repair Boom—and Threatens a Bust

Until a few weeks ago, the California Department of Transportation was girding itself for a summer disaster. Come July, it was planning to shut down a congested stretch of Highway 101 between San Francisco and Silicon Valley for nearly three weeks to tear out and...