> I'd guess that's a speed deterrent. Long stretches of flat, open road with nothing around to crash into are very inviting for people looking to race. Get goin

> I'd guess that's a speed deterrent. Long stretches of flat, open road with nothing around to crash into are very inviting for people looking to race. Get going fast enough and you risk losing control of your vehicle and crashing into other people, say an oncoming car. Those red lights, assuming I'm understanding your scenario correctly, encourage people to maintain a safer pace of travel. Sure, or perhaps it makes people who maybe zoned out give them an opportunity to see how fast they're going - and slow down, and they get an opportunity to see if they slowed down fast enough to stop at the red light - before reaching the next red light which maybe is in a little town up ahead a bit, so if they didn't stop in time for the first red light then they've kind of been notified to be more careful next time. But the exercise was to ask: if it's 100% safe to go at a red light [once you've stopped at it], with zero potential for anyone getting hurt, do you go through the red light, or do you wait until it turns green? It makes for quite the interesting psychological test seeing how different people answer, similar I suppose to the whole train track scenario - where your train is going to crash - and you have a few options; Will Smith in iRobot has related trauma as well, the robot's AI determined to save him - an adult - over the young girl, even though he was trying to command the robot to save the little girl. > ... no. There is no "or be rolling slowly enough". Stop. If you're at a stop sign or red traffic light, and if it's legal in your jurisdiction to turn right on, you have to start rolling forward - and are allowed to even if there's a blindspot and can't see any traffic coming yet [the road could be clear or not] - so if you're going slowly enough and there's no traffic then you continue, if you all of a sudden can see past the blindspot and there's enough time to safely go then you continue, if there isn't enough time to pull out then you stop.