The ones who believe low capacity driverless vehicles will replace the need for commuter rail are automotive manufacturers their associated industries and Libertarians. If this were possible thousands of cities across the world would already be planning to dismantle their rail systems. The reality is cities across the globe are refurbishing, improving and expanding commuter rail service to meet their expanding transportation needs. Driverless vehicles will improve safety and allow one to sleep for hours in their vehicle while stuck in traffic with tens of thousands of other driverless vehicles or one could take a half hour ride home on commuter rail. Your choice, and isn’t that what the real issue is. http://www.citymetric.com/transport/heres-why-driverless-cars-may-not-change-world-after-all-2510