A Las Vegas company is testing a cloud-based vehicle monitoring system that could revolutionize transportation regulation and help solve one of the Nevada Taxicab Authority’s biggest problems: the illegal long-hauling of taxi passengers. Frias Transportation Infrastructure, a technology company operated by the managers of the Frias Transportation Group — which runs the largest group of taxicab companies in Clark County — has spent three years developing RideIntegrity, a computer hardware and software system.