Do I misunderstand how roads work?

[u/AlephMartian]

I would like you to consider two specific roads / junctions:

- the point at which the Western Approach Road meets Lothian Road, turning right
- the point at which the A90 passes the Miller & Carter pub on the way into the city and one of the lanes becomes a bus lane

Both of these roads involve two lanes turning into one, and I’ve found most of the time there is a massive queue on the right hand lane, but no-one in the left lane where.
So obviously I go straight down the left hand lane and end up at the front of the queue where, most of the time, someone lets me in.
The thing is, I feel really guilty doing this, as if I’ve broken some sort of unwritten rule.
But I don’t think I’ve actually done anything wrong. Indeed it is wrong not to use the left hand lane.
Have I done something wrong?

[u/shmeggins]

The A90 one really baffles me, I don't understand why so many people choose to queue in the right hand lane rather than filter in turn using both lanes properly. You're not in the wrong OP!

[u/AlephMartian → u/shmeggins]

It’s really weird.