Bus sized vehicle fixes roads while driving over them
Control systems engineer invents a bus sized vehicle that fixes roads while driving over them: http://www.newswise.com/articles/POTHOLE.SNL.html
About the size of a Greyhound bus, the vehicle would “see” the road surface from scanners on the front bumper. Any anomalies would be cleaned with high-pressure air and then vacuumed. On-board image processing would distinguish the location and size of road surface features and determine if an object is a hole, bump, manhole cover, or crack. Next, a phalanx of nozzles, arrayed like offset rows of theater seats, would pass over. Whichever nozzles were above the hole would deliver filling material, such as aggregate and fast-drying patch material or sealer. The mixture would be tamped into place, dusted with grit to improve traction, and vacuumed. Finally, another row of scanners would check the quality of the repair.