Robots crawl the tubes under the city.

Johan Louwers writes: "Robots will crawl tubes in a short while to investigate power cables running in the tubes to make sure they are still undamaged or in need for a repair. The Robotic Cable Inspection System is developed by Alexander Mamishev a assistant professor of electrical engineering at the University of Washington. Making use infrared thermal analysis and acoustic partial discharge analysis the robot will be checking mile after mile of cable while crawling his way in the tubes."