Wales' most frightening roundabout which has some drivers screaming in terror

Feb 21, 2026 - 09:17
Feb 21, 2026 - 09:57
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Wales' most frightening roundabout which has some drivers screaming in terror
Just keep calm and you'll be alright on this rather scary roundabout

It's a roundabout which famously leaves motorists baffled as to which lane they should be in or which exit to take. Swansea's Ynysforgan roundabout has long caused confusion amongst drivers, with some even attempting to avoid it entirely.

One motorist told Pulse Media they only navigated it when absolutely necessary, opting instead to travel all the way around Ystradgynlais and through Pontardawe.

"My foot is constantly hovering over the brake whilst I'm driving on it and I'm constantly looking over my shoulder because I'm so paranoid somebody is going to hit me," she said. 

The roundabout has five lanes at some points, four at others, and a minimum of three. There are nine entries and exits, so people are getting ready to join it or leave it practically wherever you are on the circuit.

Each lane is marked differently at points, meaning drivers have to pay attention to the signs, the road markings, and other drivers as they navigate their way to the exit they want.

Expect last minute lane changes, potential weaving as people try to stare at road signs and concentrate on where they are going at the same time, and general confusion.

An aerial view of a busy highway with multiple vehicles including trucks and cars navigating through various lanes. Traffic signs and signals are visible along the roadside, indicating road conditions and directions. The road is flanked by grass and poles with signage.

It can be frightening even for the most experienced of drivers, let alone a learner or someone who has recently passed their test - screaming has been known in the worst cases.

But, like any roundabout, it is governed by rules - follow them and you will enter and exit unscathed.

The Highway Code provides clear guidance for anyone who remains uncertain about regulations concerning roundabouts.

When taking the first exit to the left, it advises that unless signs or markings indicate otherwise, you should signal left and approach in the left-hand lane, keep to the left on the roundabout and continue signalling left to leave.

However, this is where it becomes perplexing. What if you're driving straight on, taking what's referred to as an intermediate exit? 

In other words, what if the exit is situated at 12 o'clock as you approach?

This is where we encounter some road rage, particularly from those who insist that you should be in the right-hand lane. If you're one of these people, unfortunately, you're mistaken.

When taking any intermediate exit, unless signs or markings suggest otherwise, you should choose the appropriate lane as you approach the roundabout. Normally, there's no need to signal on approach.

sign on roundabout

You should remain in this lane until you need to change direction to leave the roundabout, and you should indicate left after you've passed the exit prior to the one you want.

The code stipulates that when there are more than three lanes at the entrance to a roundabout, you should use the most suitable lane on approach and throughout. In other words, the law advises using a bit of common sense.

For mini roundabouts, the guidance is to approach these in the same manner as regular roundabouts, and all vehicles must go around the central markings except large vehicles which physically can't do so. It advises against making U-turns at mini-roundabouts.

The Highway Code further states: "When reaching the roundabout you should give priority to traffic approaching from your right, unless directed otherwise by signs, road markings or traffic lights, check whether road markings allow you to enter the roundabout without giving way.

"If so, proceed but still look to the right before joining, watch out for all other road users already on the roundabout; be aware they may not be signalling correctly or at all and look forward before moving off to make sure traffic in front has moved off.

"You should give priority to cyclists on the roundabout. They will be travelling more slowly than motorised traffic.

"Give them plenty of room and do not attempt to overtake them within their lane. Allow them to move across your path as they travel around the roundabout.

"Cyclists, horse riders, and horse-drawn vehicles may stay in the left-hand lane when they intend to continue across or around the roundabout and should signal right to show you they are not leaving the roundabout.

"Drivers should take extra care when entering a roundabout to ensure that they do not cut across cyclists, horse riders, or horse-drawn vehicles in the left-hand lane who are continuing around the roundabout.

"In all cases watch out for and give plenty of room to pedestrians who may be crossing the approach and exit roads, traffic crossing in front of you on the roundabout, especially vehicles intending to leave by the next exit, traffic which may be straddling lanes or positioned incorrectly, motorcyclists, long vehicles (including those towing trailers).

"These might have to take a different course or straddle lanes either approaching or on the roundabout because of their length. Watch out for their signals."

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