Those are movie plots. We know what happens in things like natural disasters: epic traffic jams because the roads have limited capacity and once people start th

Those are movie plots. We know what happens in things like natural disasters: epic traffic jams because the roads have limited capacity and once people start thinking they can violate the laws they crash and make it even worse. Medical emergencies are more plausible but it’s a collection of edge cases: you have to be somewhere a long way from the hospital, without an ambulance, no traffic, and safe road conditions for much higher speeds. If all of those aren’t true, you’re either making a bad situation much worse with a crash or running off the road (the most realistic places for this situation are rural areas where it’s often not safe to go even the posted limit around every curve) or you’re not really saving enough time to be meaningful. Even the ambulances rarely drive like that in those regions despite being much better trained, equipped, and experienced with the area. Now, contrast those extremely low probability events with the tens of thousands of people killed by drivers every year and the hundreds of thousands who have life-altering injuries. How many people are we willing to write off so a bunch of people can fantasize about having the chance to play ambulance driver some day?