Is there any mention of how to deal with 3 lane roundabouts? I live in Australia and on visits to Britain I have found multi lane roundabouts dreadful to navigate.
Just be wary that some idiots like to cut people up (often to jump the long queue in the left hand and middle lanes) by flooring it and then diving in front, sometimes turning left from the RH [turn right only] lane. This has happened to me on numerous occasions, though more on dual carriageways at roundabout junctions under/over a motorway.
Most juntions of this type should be signed appropriately, whether on the road or a roadside/overhead gantry sign to denote which lane is for what. Sometimes a lane can be for both straight on and turn left or turn right, hopefully as the designer bothered to find out where most of the vehicles will be going so they can divide up the lanes' traffic equally over the 'waiting area' before the junction (RH turners often have to wait far longer than those going left or straight on).
Unfortunately, the designers don't do a thorough job or the council/Highways Agency doesn't change the priorities if the road use wasn't surveyed or changes after the junction is built. A notorious junction near me in Stevenage is like that - one lesser used local road jams up the really busy one because no-one can get out onto the roundabout in the evening rush hour, just because of a constant stream of a few cars coming onto the roundabout.
Additionally, many roundabouts with two or more lanes aren't signed, so everyone assumes the LH lane is for left only (or left and straight on if only two lanes), the middle for straight on the RH lane for right only. Often not helped if the junction is a three-way one, where there's no actual straight on.
One near me is of this type and a good percentage of drivers, especially those in HGVs, use the LH of the two lanes to realistically turn right (2nd exit off the roundabout) when actually its only a left turn only lane and is signed as such. This result in many near misses. Locals like me know this and stay in the 'outside lane' until well onto the new part of the dual carriageway before moving (left) over to the (slow) nearside lane.
None of this is helped by roundabout with staggered lanes on them that taper off to each exit or the infamous 'magic' roundabouts (roundabouts on a roundabout - Swindon's and one in Hemel Hempstead come to mind), which can be nightmares to negotiate for the unitiated.
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