In no particular order:
1. Moving Roadblock Driver: plops in the passing lane and goes the same speed as the car in the right lane. If the right lane driver slows down, so does Einstein in the passing lane.
2. Sheepish Intersection-Crosser: instead of pulling forward in preparation to turn across traffic, this bashful driver resolutely hangs back, ensuring that they alone will make the light, and only when there is about a half-mile break in traffic, which is when they finally feel safe to turn.
3. Locomotive Engineer: this is seen more in rural areas, but I've seen it in cities, too. Car X will be turning in a mile or two. In preparation, because a car is like a locomotive and needs a mile or two to slow down, the driver of Car X begins slowing down, many times below the speed limit, doing what I affectionately call the "Pre-Slowdown Slowdown." You know, to take it easy on the brakes. They're expensive to replace, you know.
4. Brake-and-then-Signal Driver: this driver fundamentally misunderstands the purpose of turn signals. Instead of recognizing that the turn signal's purpose is primarily to warn driver behind that he/she will be braking, Brake-and-thenSignal driver believes that other drivers have an innate curiosity in which direction he/she is next headed. "Shucks, I'd have sworn that person would be turning left, not right!"
5. Impatient Slow Driver: you're cruising along in the passing lane about to pass a line of cars. The last car in the right lane, which has been there for miles, suddenly decides that this pace has become intolerable and instead of waiting three seconds to let you pass, creeps into the passing lane right as you are about to pass them and the other cars.
Maybe it's an Indiana thing. In the fast lane, people seem to (subconciously) slow down when they pass a truck or other slow moving vehicle. Then they pull over after they pass the truck, so that you can get past, but they speed up by 10 mph. Makes me crazy. I've seen a few a-holes that do it on purpose, but mostly I just think it is stupid Hoosiers who haven't figured out how to maintain a constant speed.
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Near my house, there is a road with a 35 m.p.h. limit. For a while, it is a two lane road (one each side). Then, it opens up to a four lane road (two each side). Speed limit does not change. The driver that drives me crazy? Goes 30 in a 35, making me ride behind them (grrr)...then opens up to 45 when the road goes to two lanes (GRRR!!). It's still 35 asshole! If you were going to go 45, I'm good with that, by why weren't you doing it when it was a single lane, and it was more important for you to not block traffic?!
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1) On a two-lane rural road where the speed limit is 55, you come across a car doing 50. You're doing 60, so you pass. You then come to a small town where the speed limit is 45, then 35, so you slow down accordingly. However, the car you passed seems to have only one speed regardless of the speed limit - 50 - so now this car is right on your tail.
2) Car passing you on the interstate decides it's more interesting to ride side-by-side with you for a while before moving on (kind of like your #1 driver).
3) You're going 75 in the left-hand lane of a 3-lane interstate. Car gets behind you for a while and you realize you shouldn't be there. But the car behind, instead of using the open middle lane, is content to stay behind you, so you hang out there for a minute to see what he does. When you finally move to the middle lane yourself, car that was behind you then zooms on.
4) Cars that DON'T MOVE OVER when you're merging onto the interstate, even though no one is blocking them from doing so.
5) The tailgater. Hey bozo, this isn't NASCAR; no need to draft me.
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