Motoring Discussion > No left turn onto roundabout Miscellaneous
Thread Author: Mapmaker Replies: 16
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 Tue 31 Mar 26 11:20 
 No left turn onto roundabout - Mapmaker
Faced with this (Oxford, just over Magdalen bridge):

maps.app.goo.gl/zr5knYzRSWQjXjUJ9

What do you do? Don’t you *have* to turn left onto a roundabout?

Apparently a camera here has taken £600k in fines from confused drivers.
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 Tue 31 Mar 26 11:36 
 No left turn onto roundabout - Bill Payer
You're not "turning left" onto a roundabout - just going around it.

Why don't they want cars to turn left - stop them turning across cyclists? There aren't no entry signs at the entrance to the road.
Last edited by: Bill Payer on Tue 31 Mar 26 at 11:37
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 Tue 31 Mar 26 12:18 
 No left turn onto roundabout - Zero
just means you cant take the first left exit.
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 Tue 31 Mar 26 12:28 
 No left turn onto roundabout - Biggles aka B_i_G
Can you go all the way around the island and then exit using that road to Iffley?
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 Tue 31 Mar 26 12:29 
 No left turn onto roundabout - CGNorwich
Seems pretty clear to me. To protect large numbers of cyclists who use that road.
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 Tue 31 Mar 26 12:40 
 No left turn onto roundabout - tyrednemotional
The reasoning seems pretty clear. The signage on the other hand is (IMO) abysmally unclear.

In what must be considered very unusual road circumstances there appears to be no pre-warning of the situation and a single, small no left turn sign right on the roundabout at the point where one's natural attention as a driver is instead to the right.

It needs road markings and/or a raised, advance roundabout sign making the circumstances clear.

I did also wonder which road(s) the no left turn applied to - Iffley Road and/or Cowley Place (both left turns from the point of entry).

I have to say that, as a "stranger" I think I could easily be caught out here (and witness the monetisation, many people apparently are which must raise some questions).
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 Tue 31 Mar 26 13:24 
 No left turn onto roundabout - Zero
>> Seems pretty clear to me. To protect large numbers of cyclists who use that road.

I get a total ban, Yet a bus can, with all the visibility and space problems it brings to cyclists.
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 Tue 31 Mar 26 13:49 
 No left turn onto roundabout - Andrew-T
Presumably this 'exit' is a one-way street, the wrong way when approached from this roundabout ? If it were a plain T-junction or cross-roads there would be no confusion ?
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 Tue 31 Mar 26 13:59 
 No left turn onto roundabout - tyrednemotional
>> Presumably this 'exit' is a one-way street, the wrong way when approached from this roundabout
>> ? If it were a plain T-junction or cross-roads there would be no confusion ?
>>

Nope, two-way. You're simply not allowed to exit left into it from the immediately preceding roundabout entrance.
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 Tue 31 Mar 26 22:07 
 No left turn onto roundabout - Bill Payer
>> I get a total ban, Yet a bus can, with all the visibility and space
>> problems it brings to cyclists.
>>

I don't see that busses can, only cycles.
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 Tue 31 Mar 26 22:51 
 No left turn onto roundabout - Zero
you are right, my bad. dunno where I dreamed that up.
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 Tue 31 Mar 26 14:09 
 No left turn onto roundabout - zippy
>> just means you cant take the first left exit.
>>

That's how I read it.

Usually there is a pictogram of the roundabout with the no-entry road properly indicated.
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 Tue 31 Mar 26 14:20 
 No left turn onto roundabout - Terry
Signage may be rubbish but if you look on satellite view the left turn at the roundabout from Cowley Road into Iffley Road is very sharp - at a guess 300 degrees almost going back in the opposite dirction.

Roads are narrow, possibly congested in rush hour, and the prospect of motorists (particularly vans and trucks) misjudging the turn and having to reverse perhaps makes the restriction reasonable.

That some motorists (many/most local) ignore the sign and the camera warning to save themselves (perhaps) a couple of minutes is their choice - they then get fined.
Last edited by: Terry on Tue 31 Mar 26 at 14:22
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 Tue 31 Mar 26 16:35 
 No left turn onto roundabout - De Sisti
>> Signage may be rubbish but if you look on satellite view the left turn at
>> the roundabout from Cowley Road into Iffley Road is very sharp - at a guess
>> 300 degrees almost going back in the opposite dirction.

300 degress? More like 160 -170 ish.
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 Tue 31 Mar 26 16:57 
 No left turn onto roundabout - De Sisti
>> >> Signage may be rubbish but if you look on satellite view the left turn
>> at
>> >> the roundabout from Cowley Road into Iffley Road is very sharp - at a
>> guess
>> >> 300 degrees almost going back in the opposite dirction.
>>
>> 300 degrees? More like 160 -170 ish.
>>
Amended a spelling mistake.
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 Tue 31 Mar 26 15:02 
 No left turn onto roundabout - Bromptonaut
>> Usually there is a pictogram of the roundabout with the no-entry road properly indicated.

If you 'walk' Streetmap back away from the roundabout there's a warning sign though meaning still not 100% clear; needs explanatory script as well as pictogram.
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 Tue 31 Mar 26 17:33 
 No left turn onto roundabout - Mapmaker
Good spot Brompton, but I’m not convinced it really helps anybody:

maps.app.goo.gl/i6suLbUYepC7ciWBA

There are too many signs here, they’re somewhat incomprehensible, and definitely non standard. I don’t know what the solution is.

It’s all very well in the calm light of a discussion forum to say ‘that’s obvious’ but in a city like Oxford you’re paying more attention to the bicycles than the road signs.

Personally I think one does turn left onto a roundabout. It’s certainly not right, and it’s not straight. Therefore it must be left; or at least sufficiently left that when you’re faced with an incomprehensible sign in a stressful situation it stands a good chance of frying your mind.
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