Dash cam videos thread 3.4 (embedded car dash-cams only)

But he didn't stay in the r/h lane until he had passed the exit immediately before his intended exit. He moved to the l/h lane before he had passed the first exit.

Fully deserved, they might pay a bit more attention going forward, though I doubt it.

Are you referring to the video posted by @j_r?

Driver in question enters the roundabout from the right lane:

But is then in the left lane on the roundabout itself before the exit for turning left:

FWIW, still reckon myself that the procedure there, since there are only two exits, should be to enter in left lane if turning left, and enter (and stay!) in right lane if going straight through. Otherwise, what's the right lane actually for, unless you're going all the way around and back in the direction from whence you came?

You are incorrect - rules of the road state left lane is for exits 1 and 2 on a typical roundabout. Right lane entering a roundabout is for any exit after exit 2 on a typical 4 exit roundabout. Exceptions include when the lanes entering the roundabout are marked with arrows indicating what exits each lane is for.

Let's have a look at what you posted and apply it to the roundabouts in question here.

rules of the road state left lane is for exits 1 and 2 on a typical roundabout.

These are not typical roundabouts. There are only two exits (or three, if you include the option of going back the way from which you came).

Right lane entering a roundabout is for any exit after exit 2 on a typical 4 exit roundabout. 

Again, these are not typical four-exit roundabouts (and since you say four is typical, you do seem to be including the option of going back the way from which you came).

I'm suggesting that on an untypical roundabout like these ones, the sensible thing would be left lane approach for first exit, and right lane approach for second exit. Otherwise, I repeat the question - what's the right lane on approach actually for? By your logic, it would only be for what must be an absolutely tiny minority of drivers who do indeed want to do a full loop of the roundabout, and go back the way they'd come from in the first place.

Yes, but note the use of 'generally' in two places in the advice given re. what approach lane to take. Also mentions of 'should', 'in the main', and 'almost any'. It's not a hard and fast overall rule that applies in absolutely every single situation. And overall, the key point there is this:

If there are road markings showing you what lane you should be in,follow those directions.

So my point, and backed up by that statement from the RSA, is this:

if there are road markings (and ideally, signposts too) saying to use the left lane approach for left turn only, and to use the right lane on approach for going straight through, then that's what motorists should do. And in such cases, a driver taking the second exit from the left lane wouldn't be legitimately taking that exit from that lane, as they'd have disobeyed the road markings.

Anyway, back to my main question:

if the left lane approach is for turning left and also for going straight through, then what's the right lane approach for?

Going back the way you came.

Well, at least I finally got an answer, even if it is what I consider to be a somewhat facetious one, and just parrotting a suggestion I previously made myself.

Wonder what proportion of drivers really would want to go all the round compared to the proportion who'd want one of the other two exits??!!

Never apologise for interrupting roundabout bores.

Thank you.