related one that gets me on way home, in Glasgow, heading for M8 from Dobbies Loan area. There is a left filter off for the M8, with a set of lights about 200m before it.
You’re missing some vital bits of information from your post. The lights are a lot more than 200m from the merge, there’s generally a high volume of traffic pulling out of the side road just before the merge, the outside lane is straight on only, it’s not a merge in turn situation, you’re trying to force your way into a line of stationary or very slow moving traffic. Both lanes at the lights are signaled ‘ahead’ but you’re going left a wee bit further on.
So you are in the wrong lane but still expect people to let you in.
folk behind in the right lane, who are going straight on, get angry..
Again because you were in the wrong lane to start with. I’ve seen police move drivers along from sitting in that lane on quite a few occasions.
But to be fair that whole stretch from Dobbies down to the M8 slip is badly designed.