Although not legally prohibited, which is what it would need to be to be mapped in OSM.
It's one of those situations which wiil incur a without due care and attention if done in the wrong circumstances, at quiet times would be absolutely fine. In normal circumstances it is unlikely that any navigation software will route a U turn at this point but it is up to the driver to assess whether a turn is sensible and if not ignore it and let the software replan Phil (trigpoint) On 26 September 2024 12:38:25 BST, Jez Nicholson <[email protected]> wrote: >From the discussion, and looking elsewhere, I take it that your solicitor >might get you off in court on a technicality, but that if you attempted the >maneuver in real life you risk getting pulled by the police or crashed into >by oncoming traffic. I wouldn't call that "allowed". > >On Thu, Sep 26, 2024 at 11:58 AM Chris Pankhurst via Talk-GB < >[email protected]> wrote: > >> Hi Tom, >> >> Thank you for your very fast response to my questions. I appear to be >> aligned with you that u-turn here is possible, not explicitly permitted, >> but probably allowed with caution unless there is another sign e.g. >> filtering sign on the green light. In this instance using Bing Streetside >> and sensor derived traffic signs I see no additional restrictions on the >> green light of the traffic lights to restrict a u-turn here. >> Also, thank you for confirming that traffic rules pertaining to this and >> other situations elsewhere in in GBR are very unlikely to be different and >> would employ the same traffic signs for same/similar scenarios. >> >> Thanks again. >> >> Regards >> >> Chris >> >> >> >> -----Original Message----- >> From: Tom Hughes <[email protected]> >> Sent: Wednesday, September 25, 2024 5:25 PM >> To: Chris Pankhurst <[email protected]>; >> [email protected] >> Subject: Re: U-Turn guidance in London >> >> [You don't often get email from [email protected]. Learn why this is >> important at https://aka.ms/LearnAboutSenderIdentification ] >> >> On 25/09/2024 21:44, Chris Pankhurst via Talk-GB wrote: >> >> > I am looking at a junction in London where I am not clear whether a >> u-turn is allowed or not. The location the junction between Edgeware Road >> and Praed Street and Chapel Street traveling from NW din a SE direction. >> > There is straight ahead arrow on the right lane and there is no right >> turn sign at the junction. Also there is no no u-turn sign there and OSM >> does not have a No U Turn Relation on the approach way so implying u-turns >> are allowed here. >> > The question I have is can you make a u-turn on Edgeware Road to come >> back on Edgeware road in a NW direction: from 51.5193824, -0.1691434 to >> 51.5193073, -0.1692058 and hence OSM is correct? >> >> Absent a sign prohibiting it then it's probably allowed when there's a >> full green on the lights. It's just possible all the greens have filter >> arrows which might effectively prohibit it. >> >> I certainly wouldn't recommend it though - that kind of u-turn on a dual >> carriageway at a junction is a fairly common thing in the US I think but >> it's not something people will be expecting here and there's a good chance >> the oncoming traffic will have green at the same time making it hard to do >> in practice. >> >> > And a broader question is what signs, incl. road markings, have to be in >> place for a u-turn to be prohibited. I have seen a number of conversations >> on traffic forums but have not seen a conclusive answer and I understand >> there are possible variables depending on the city, region, etc. >> >> I can't think of any reason why city or region would make any sort of >> difference - traffic rules are the same everywhere and any local traffic >> order prohibiting u-turns would have to be reflected in standard signage to >> be effective. >> >> Tom >> >> -- >> Tom Hughes ([email protected]) >> http://compton.nu/ >> >> _______________________________________________ >> Talk-GB mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/talk-gb >>
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