Using a cellphone based system with the right kinds of encryption, fire engines, ambulances and maybe even police, should be able to control the pattern of traffic lights when they are heading for an emergency and need to navigate through crowded traffic crossings with complicated lights. I saw a fire engine heading somewhere and arriving at a crossing where they practically had to come to a halt to make sure no dumbheads were still moving. This could be avoided if all lights are turned to red for a few seconds prior to and after they reach the intersection.
How about creating a system that enables the fire department or the EMT services to hook into the traffic lights network and access the central controls? With the necessary authorizations or maybe with the right hooks to allow for an override, this system could be implemented and be very useful.
