Passing on the right seems to have various causes:
- Somebody too slow in one or more of the left lanes.
- Racing ricers, one picks left, one picks right
- Some subconscious feeling that it isn't really passing, or the driver is less susceptible to speeding tickets if they pass on the right since it is less obvious or noticeable. I am slick if I can make it by on the right!
- I am almost at the exit, and the right lane is clear, and I am going faster than the traffic in the near left lane, and it is too soon to slow down, and not worth the trouble of moving over 2 lanes to the left, and then back 2 lanes to the right to pass a car.
- I am a truck, and I am supposed to stay in the right lanes.
People going too slow in the left lane(s) may be motivated by:
- Afraid to move to the right, can't see well, just a pain to shift over.
- People who feel they are the fast type of people, and shouldn't have to move over, left lanes are for the winners, and I feel I am a winner type of person.
- Catatonic: asleep at the wheel, on cell phone, talking, daydreaming, listening to music, don't check rear view mirror, etc.
- People who feel that if they are going at least the speed limit they have a right to the left lane even if others are going faster (yes, I've heard them say exactly this). Others shouldn't speed, so screw them if they pass on the right.
- There seems to be fewer cars here, it feels safer.
- Trying to get into the HOV lane, or just came out of it.
- I am trying to move to the right, but people keep passing me on the right, and it is hard to get over.
- There is an upcoming left exit.
Roland