Things are not only bigger in Texas, they're also hotter, more sprawling and increasingly traffic-clogged thanks to a population boom that has lasted nearly a decade. In many of the state's fast-growing, car-dependent cities, these realities make for lousy walking conditions and long commutes. For the self-driving car company Drive.ai, Nearly four months after the Mountain View, Calif.-based start-up launched a six-month pilot program in nearby Frisco, Tex., the company deployed its second self-driving service on public roads in Arlington, Tex., on Friday. The service -- which is free to use -- will operate multiple routes in geo-fenced areas in downtown Arlington, according to Drive.ai

Things are not only bigger in Texas, they're also hotter, more sprawling and increasingly traffic-clogged thanks to a population boom that has lasted nearly a decade. In many of the state's fast-growing, car-dependent cities, these realities make for lousy walking conditions and long commutes. For the self-driving car company Drive.ai, Nearly four months after the Mountain View, Calif.-based start-up launched a six-month pilot program in nearby Frisco, Tex., the company deployed its second self-driving service on public roads in Arlington, Tex., on Friday. The service -- which is free to use -- will operate multiple routes in geo-fenced areas in downtown Arlington, according to Drive.ai