Theoretically, do you have to stop at a roundabout?

**I'm asking about how the THEORY of a roundabout works. Not whether you actually do this.**
(I had to put that comment in because I've been on here long enough to be able to predict what half the answers are going to be!)

Answers:
No, the line before a roundabout is a erm dashed line like this - - - - - so that means you have to give way.
You only have to actually stop when the line is continous and there is a red hexaganol stop sign
No, I believe the point of a roundabout is to have a continous flow of traffic without people needing to stop.
I agree with Bubble
you have to stop if it is not clear ie someone is coming from your right if no one is there then no you dont need to stop
:-)
In New Zealand you only have to give way at a roundabout so if there are no cars you do not have to come to a full stop.
No, as long as you give way to other traffic on the roundabout, as at this point they have priority, and the traffic to your right, you do not need to stop. Roundabouts are designed to keep traffic moving in theory.
You have to give way to the cars coming from the right. Theoretically if there is time for you to join the round about before the car reaches you then you don't have to stop. You only have to stop if there is no safe way for you to join the round about. Then you have to stop and wait for a time when you can safely join.
The idea of roundabouts is as you approch you adjust your speed to the speed of the traffic on the roundabout so you can join the traffic without stopping. Roundabouts were invented to keep traffic moving contiously but so many people dont know how to use them correctly they always cause a bottle neck
Not if they are magic roundabouts.in this case you just jump on with Dougal & friends.
.but you still have to give way to traffic approaching from the right - only enter the roundabout if your freeway is clear :-)
originalbubble says this
No, the line before a roundabout is a erm dashed line like this - - - - - so that means you have to give way.
You only have to actually stop when the line is continous and there is a red hexaganol stop sign

its correct BUT
you have to stop and give way to traffic on the roundabout
too
No, it is only a Give Way point so you don't actually need to stop.
You don't have to stop unless someone to your right is actually on the roundabout (or if it's a big roundabout, far enough away).
You don't have to stop; just give way to traffic from the right if there's any coming. See the Highway Code. By the way, roundabouts are known as "traffic circles" in some other parts of the English-speaking world, e.g. parts of USA. They may have different rules there.
'Theoretically' no you don't and I like the way you put your question
i know this, i know this one!!

the answer to this question is give way to traffic coming from the right - you only need to physically stop the vehicle if there is an unbroken line across the road and a stop sign.

it is actually an offence not to stop if the unbroken line is there - even if there are no other vehicles for a 10 mile radius!
Yes you do. How else are you to see if there is anything on your left manouvering onto the roundabout?
You have to give way to the right at a roundabout so if their was a row of cars coming from that direction you would have to stop to let them pass.
A roundabout is in essence, a give way situation. You always give right of way to vehicles approaching from the right, no vehicles no give way.
Theoretically not with limited access lanes, plenty of roundabout lanes (at least three) and a smooth and slight flow of traffic. However, if you have more than, say, four entry lanes, your roundabout lanes only number two and the traffic is extremely heavy -- the cute little roundabout theory becomes a congealed mess and stopping is in order!!
theoretically no but most roundabouts are fitted with part time traffic lights so i guess if the red light is on you would theoretically have to stop, unless you are colour blind theortically
i agree with bubble but of course if there is anything coming you do need to stop. In the high road code the only things YOU MUST DO is in a red traingle. But remember common sense!
only if traffic is coming from the right
No. basically its for smoother traffic flow. Unlike a traffic junction, where you have to stop at the lights.
NO! - [In the UK]

It's a 'GIVE WAY'.

You give way to traffic ALREADY on the road - approaching from YOUR right, just like a normal junction.

eg. FOUR way roundabout single lane.
Taking first left - indicate left
Straight ahead - NO indication, then indicate left to exit.
Third exit - Indicate RIGHT, then indicate left to exit.
All the way round - Indicate RIGHT, indicate left to exit.

for double or triple lanes - involves charging lanes depending on the exit you wish.

As for the comment about 'ONLY RED TRIANGLE indicate a 'MUST DO' - rubbish! Try telling that to the police when you go up one-way streets (blue rectangle), run STOP signs (red octagon), do 90mph (red rimmed circle)..LOL no wonder it took them four times to pass!!
If a car is coming from the right and you're gonna hit it by pulling out then YES, stop.
If no car is coming from the right and it is clear and safe to do-so then NO you do not need to stop.
There is no law that says you HAVE to stop.
not unless there is a stop sign. according to hghway code.
No You do not have STOP at a roundabout , as there is NO Stop Sign at Roundabouts, it is simply a give way
In theory, a roundabout is the main road and all the roads leading to it are minor ones. Therefore the rules are the same as if you were approaching a 'T' junction and turning left and once on the roundabout it is the same as turning left from a major road into a minor one. This is what determines how you should use your mirrors and signals and who you should give way to.

The answers post by the user, for information only, UKQnA.com does not guarantee the right.

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