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#1 03-05-09 20:12:29

tez
Member
Registered: 01-03-09
Posts: 2

Other cars on Roundabouts

I'm having trouble understanding what other drivers are doing and when its safe to enter a roundabout, the main problem is this..

I am approaching a 4 exit roundabout, there are 2 lanes for each, the left lane for left and ahead the right is for right. A 'text book' roundabout.

I'm sat in the left lane, wanting to go ahead. A vehical emerges from the exit to my right with there right signal on, so they are in the inside lane. Should I go? I would be in the outside lane and shouldn't interfeer with him.
I did this tonight and got a blasting of his horn and some abuse out of the window.

its so confusing :?
Tezer

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03-05-09 20:12:29

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Re: Other cars on Roundabouts



#2 04-05-09 07:32:04

driverpete
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From: Nottingham
Registered: 06-02-06
Posts: 457

Re: Other cars on Roundabouts

Ask yourself "Could this driver be signalling incorrectly?" he may be going ahead; "Might he change his mind and use another exit?", "Does the car's body language confirm what his signal is telling you?". For all of these reasons I generally wait until I am absolutely certain it's safe to go - in other words usually after he's committed himself to the right turn and not before.


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#3 04-05-09 09:05:51

Target
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From: Winchmore Hill North London
Registered: 17-01-05
Posts: 5,695
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Re: Other cars on Roundabouts

The rules are simple, applying them takes alot of practice.

You need to giveway to cars from your immediate right, therefore this driver was on your immediate right.

Look at it anothey way. If it was a T-Junction, would you have gone at that point?

I apply the angle rule to roundabouts. Enter at an angle that will not effect the other cars, so I either need to go before them and make progress, or after.

I'd guess by the time you entered you were in contact with the other driver, and if you have been on the receiving end of this its very scary, you see this car entering not knowing what they are going to do, you immediately come off the gas and slow down.

Try not to drive side by side with another car, and if in the case of the roundabout make sure that IF this driver changed his mind you will not slow him down.





Heres another example....Image your entering a Dual Carriageway (NSL) and your place at a T-Junction to enter (small slip). Cars are travelling at 60-70mph, but your sat there in 1st gear. There are 3 lanes the nearside lane is empty, but there are cars in lane 2 doing 60-70mph.

When do you enter?

You have given it time, there are now other cars waiting, its a busy Friday afternoon at 4pm.

You have to give it time and using this rule above enter between the largest gap in the middle lane, using the angle rule. Dont want to enter as someone passes - How do we know they have seen you!

Build up speed quickly watching cars from behind.


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#4 04-05-09 12:17:53

howly
Verified Member
Registered: 16-10-06
Posts: 140
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Re: Other cars on Roundabouts

tez, in your example above the other driver will want to exit the roundabout in the left lane (ie move to the left lane as he passes his last exit), if you have moved off when he is approaching you from the righthand lane you have effectively blocked his path.  perhaps think of it from the other drivers point of view.

a "basic" method that helps my pupils is predict which exit the traffic is taking, all you really need to know is if the traffic is coming "off" the roundabout at your exit, or coming "around" the roundabout passing your exit.  if the traffic is coming "off" you can go, if coming "around" you wait, so how do you predict this:

1st look at the traffic coming from the right junction.  the "only" concrete clue to predict if the traffic is coming "off" the roundabout is a "left signal".  if they dont have this signal assume they are coming "around" the roundabout.  a lot of learners sometimes mistake positioning to the left as turning left "off" the RA, however the left position with no signal will likely mean that car is going straight ahead "around" the RA.

2nd look at traffic coming from the otherside of the RA.  the best clue to predict is looking at its "position" - the inside lane suggests coming "around" the RA to turn right, the outside lane suggests coming "off" the RA to go straight ahead.  if you can see a right signal this can reinforce the car is coming "around" the RA however you often cant see the signal until too late because of limited visability.

there are other clues to look for as you get more experience such as where the driver is looking etc.  if you see a car coming "around" the RA you'll need to judge whether you have time go based on speed and distance of the other car.

i hope this makes sense, its easier to explain with diagrams than to write!!

a suggestion if you are able to, is to stand near a RA and try to predict the traffic without the pressure of driving. you'll soon get the hang of it.

another question is, are you getting help from an instructor?  if not then you'll get some invaluable advice if you seek professional help.

it takes time to develop the skills necessary to deal with RA's so dont worry if its not perfect yet.

hope this helps

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#5 08-05-09 23:47:49

mrbrightside
Verified Member
From: Doncaster, South Yorkshire
Registered: 07-05-07
Posts: 189

Re: Other cars on Roundabouts

To keep it simple, no you should not have gone. TargetAdi spelt it right out: Give way to traffic coming from you're immediate right.

YOU: use the left lane on approach, the left lane on the rbout and come off in the left lane on your exit road.

OTHER DRIVER: right lane on approach, right lane on rbout, but will come off in the left lane on the same road as you.

So the conflict is at the end, you both want the left lane on the exit road, and by going at the same time, you block his path back to the left lane.

Judging rbouts is a hard skill to master.... the "around" and "coming off" method above is good. As is standing near a rbout and practising without the need to drive. Also, whenever you're a passenger in a car, pretend you're making the decisions. Hopefully, you're getting professional lessons from a driving instructor who should be able to help you further with lots of practice. Practice makes (nearly) perfect!


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