<div dir="auto">Hi Paul,<div dir="auto"><br></div><div dir="auto">There are two sections of primary B roads that I've been able to find, which is against the Government's own advice for primary routes:<div dir="auto"><span style="font-family:sans-serif;font-size:12.8px">* B5093 Mosley Road, Fallowfield, Manchester is designated as a primary route and is also a B road.</span><br style="font-family:sans-serif;font-size:12.8px"><span style="font-family:sans-serif;font-size:12.8px">* B6261 at Shap, Cumbria linking A6 to M6 is designated as a primary route and is also a B road.</span><br></div><div dir="auto"><span style="font-family:sans-serif;font-size:12.8px"><br></span></div><div dir="auto"><span style="font-family:sans-serif;font-size:12.8px">The proposed change would make UK OSM consistent with the global OSM terminology (i.e. a trunk road is a high performance or high importance road that doesn't meet the requirements for motorway). Many of the UK's primary routes (tagged on OSM as 'trunk') are relatively minor roads (single carriageway, multiple roundabouts, 30mph limits) and there is no way those should be classed as 'trunk'. There are some non-strategic primary routes that are dual carriageways with grade separated junctions and national speed limit (i.e. OSM 'trunk' standard), but they're in the minority.</span></div><div dir="auto"><span style="font-family:sans-serif;font-size:12.8px"><br></span></div><div dir="auto"><span style="font-family:sans-serif;font-size:12.8px">The proposed change has the added benefit of making the UK OSM definition consistent with UK terminology, which has long term benefits.</span></div><div dir="auto"><span style="font-family:sans-serif;font-size:12.8px"><br></span></div><div dir="auto"><font face="sans-serif"><span style="font-size:12.8px">It has been noted that OS maps distinguish between primary and non-primary. Is the global aim of OSM to replicate in-country mapping standards or to create a consistent map as possible globally? The guidance for East Africa states "In Kenya, despite the official designation International Trunk Roads, most of type A roads are not trunks as defined by OSM. The vast majority of Kenyan A roads must fall into the category highway=primary." To me this indicates OSM is aiming for a consistent standard internationally, and currently the UK (well, mostly just England) sticks out as not applying the 'trunk' tag to the required standards.</span></font></div><div dir="auto"><font face="sans-serif"><span style="font-size:12.8px"><br></span></font></div><div dir="auto"><font face="sans-serif"><span style="font-size:12.8px">As Tom said this is a matter that keeps being raised so it's clearly a persistent issue that needs resolving.</span></font></div><div dir="auto"><font face="sans-serif"><span style="font-size:12.8px"><br></span></font></div><div dir="auto"><font face="sans-serif"><span style="font-size:12.8px">Barry</span></font></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 15 Sep 2021, 09:21 Paul Berry, <<a href="mailto:pmberry2007@gmail.com">pmberry2007@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr">> Retaining the current system produces the quirks mentioned previously e.g. primary B roads and routes between primary destinations not being primary, which are difficult to handle - in fact each of the primary B roads are designated differently on OSM (one as trunk and one as secondary).</div><div dir="ltr"><br></div><div>If you're going to open this can of worms, at least get your definitions right. There's no such thing as a primary B road. Only A roads can be primary and non-primary.</div><div><br></div><div>The system isn't great but there's a lot to be said for OSM in being consistent, even if it's not as we would have designed it if we were starting from scratch. </div><div><br></div><div>Pick your battles wisely.</div><div><br></div><div>Regards,</div><div><i>Paul</i></div></div>
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