Comment Re: Not new (Score 1) 64
But there are many reasons an emergency vehicle might deviate from a prescribed route, and the strobe or transponder systems are much better at adapting to that. Not to mention if you clear the whole planned path immediately, in most US cities, will cause traffic congestion that could take hours to recover from. A system that follows the emergency vehicles and continually adjusts their next couple of blocks allows for much better traffic flow overall.