OpenStreetMap

Longstanton by-pass, Cambridgeshire

Posted by davidearl on 9 February 2009 in English (English)

A substantial new bypass opened recently around the village of Longstanton north of Cambridge. A friend on a bike ride collected the track yesterday so I was able to take his track and description and add it to the map. As far as we know, it's not on any other online map so far.

http://geo.topf.org/comparison/index.html?mt0=googlemap&mt1=tah&lon=0.0459194&lat=52.2827571&z=14

(By the way, the big chunk of green on the Google side labelled bizarrely 'Cambridge' is a golf course, which we have on the map at the club house, but not the area; the roads south of that are private: part of an barracks, a "prohibited area under the meaning of the official secrets act", which is now a detention centre for refugees with armed guards on the gate, so I chose not to try to map it when I first surveyed Longstanton! Google is perhaps misleading in even showing these - they look like residential streets, but are inaccessible.).

Interestingly, Google doesn't even have the "old" bypass (the rather obvious gap between two roundabouts) that preceded the new one further out, and which has been there for several years now

This bypass severs NCN11 - there are now earth bunds and locked gates along the line of the old road, which was a quite senseless decision. NCN11 is now routed along the main street of the village and along the new high-speed by-pass. Crazy. However, this may only be short term, as the whole of NCN11 will be rerouted to use the entirely off road cycleway alongside the Cambridgeshire Guided Bus between north Cambridge and St Ives at the end of this year (it's delayed).

Location: Longstanton CP (S Cambs), Longstanton, Cambridgeshire, East of England, England, United Kingdom

Comment from Donald Allwright on 9 February 2009 at 11:40

That's odd - I did my usual Monday morning comparison of Mapnik and Osmarender to see the differences, and there were none - it looks as if it's already rendered in Mapnik, despite a Wednesday not yet having passed since the data were added. Any idea why? Nice work though.

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Comment from davidearl on 9 February 2009 at 12:14

No idea, it seemed to have happened while I was actually writing the diary entry.

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Comment from Richard on 9 February 2009 at 13:34

Jon has been doing some work on more regular Mapnik updates.

The "Cambridge" one is interesting - Google appear to have a rogue batch of UK cities in the database. I've noticed it if you search Google Maps for Gloucester and Cirencester, too.

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Comment from marscot on 9 February 2009 at 18:29

yeah I noticed Crawford South lanarkshire render up early I hit it last week to late for the wednesday update but it is now there.
Wonder what they will do with the old By pass

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