Or at least it must be, based on what I see every day on the road. Aside from what's in the various drivers ed classes and "rules of the road" books, the single most important rule for drivers is pay attention to the road. Of course almost no-one does this, they're busy with their cell phones or car entertainment systems or yapping with passengers, stuff like that. So you get things like not moving when the traffic light turns green or the car ahead of them starts going, rear-ending someone who has slowed to make a turn, and so forth. The second most important unstated rule is move your stupid ass. I don't mean speeding, I mean doing the speed limit, maneuvering smartly instead of slowly, accelerating when the light turns green, or accelerating once the car in front of you that slowed down to make a turn is out of the way. And as an aside, there are two rules governing how fast you should be going. One is the speed limit, the other is traffic flow. If you're in light traffic, you should be doing the speed limit. If you're in heavy traffic, you should be matching the flow. Even if that flow is moving significantly above the speed limit. Needless to say, if you're in heavy traffic and it's moving slowly, odds are you're going to be forced to go slowly yourself just because there's no way to move any faster. Related: Don't camp out in the left lane of a multi-lane highway while going below the speed limit. Simple rule: if you're consistently being passed on the right, you're going too damn slow. Move over or speed up. If someone has to hit their brakes because you pulled out, you shouldn't have pulled out. And if you pull out like that just so that you can turn off again a hundred yards down the road, fuck you right in the ass. You should have waited. A turn signal is not a "get out of my way I'm coming into your lane right now" pass. It's asking permission to move over when it's safe for you to do so. Incidentally, they're called "turn signals" because you use them to signal your fucking turns. That's so the rest of us know you're about to maneuver and we can take measures to avoid, you know, crashing into you. Don't change lanes to get in front of someone who is obviously moving faster than you are, or at least if you do, fucking accelerate. And don't we all love it when the truck going 41mph up the hill pulls into the left lane to pass the truck going 40mph up the hill. Isn't that just special? When it snows, you clean all of the snow off of your vehicle. Not just off the windshield and not, God help me I've actually seen this, just off of the half of the windshield in front of the steering wheel. Snow or ice flying off the roof of your car at highway speeds can smash windshields behind you. Clean it off. In a line of traffic that's stopped, like at a light or a stop sign, it really isn't necessary to leave three car lengths between you and the vehicle in front of you. Shit like that contributes mightily to gridlock. Also, at most intersections you'll find a white line painted across the lane that indicates where you're supposed to stop. Not in front of it, not five car lengths back from it. That said, there is no shortage of intersections where the traffic light is placed incorrectly and you can't really see it from where you're supposed to stop. Traffic engineers are still people, which means yes, they are idiots and get things wrong sometimes. We all know we can rant about traffic and driving all day long and not cover all the stupid shit we see on the road. If you want to entertain yourself, watch dashcam videos on Youtube. The parade of idiocy will make you want to murder a hobo, but most of it comes down to people simply not paying attention to the road. Don't be one of those people. This has been a public service announcement.