1. Drivers who leave a multi-car length gap in front of them, I am not sure why they do this. It's either they do not want to rear end people while they are at a light on their phone, or they do not want to get smashed into the car in front of them. I remember in driving school they said to leave a large gap and I thought that was stupid as it would essentially cut our road capacity in half if everyone did it. Well, apparently I was the only one who thought so. It's the worst when they block a turn lane or you are trying to merge and they have a two car gap ahead of them that they will not forfeit under any circumstances.
2. Drivers who pull out onto the road in front of you when they should have waited let you pass, only to accelerate slowly or go below the speed limit. They aggressively pull out in front of you, then drive like they are ninety years old.
3. Drivers who do not understand the S-turn when you are making a left at an intersection, and think you are trying to make the turn. I've been honked at for performing a maneuver right out of the driver's handbook.
4. Drivers who will sit in pole position at an intersection and take 3 seconds to realize the light is green because they are trying to coax nudes out of a member of the opposite sex.
5. Drivers doing the speed limit in the left lane.
6. Drivers who are hesitant/indecisive, nothing is more dangerous than that. Commit or don't.
7. Drivers who are slow or lackadaisical on advance lights.
8. Drivers who block intersections because they deserve to get through that light even if they have to block people making lefts or perpendicular traffic to do it. I remember when I was young people were much more disciplined regarding this.
9. Drivers who when honked at for doing something stupid proceed to honk back at you or brake check you.
10. Drivers who are so afraid to get blocked into a driveway that they will block multiple spots and park at the end. I see this all the time on job sites, where asking someone to move their car or truck is very common and not a big deal.
11. Drivers who wait until the last possible second to exit a closing lane. I learned on this board about the "zipper" merge. I'll let one car in but that is where my responsibility ends. If you want to drive into a lane that is ending and bully your way in go for it, but I will only let one car in.
12. Drivers who do the opposite and will unintentionally block you from merging onto the highway before the entry lane ends by sitting in the right lane. Like they have never merged onto the highway before.
13. Drivers who do not go fast enough on the on ramp to the highway. I assume the reason they are so wide and have such soft curves is so almost any car can build enough speed on them to safely merge. I've seen people merging on the highway at like 70 km/h when the speed limit is 100 km/h. I see it all the time, three cars bunched up behind one car going wayyyy to slow, and then all of them trying to merge at once.
When people screw around on the ramp or near merging areas, I hate having to cross the solid lines and make an early merge or risk the lane ending and having to make a drastic move. When I am in the right lane on the highway, I try to maintain a consistent speed or change lanes if I see numerous cars on the ramp preparing to merge onto the highway.