Oxford
 Oxford, Oxfordshire, England
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| Latitude : 51.75, Longitude : -1.23 |
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Oxford is a city in Oxfordshire, England at latitude 51.75, longitude -1.23.
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| OpenStreetMap images (and underlying map data) are freely available under the OpenStreetMap License. |
Description
The University City of Oxford lies to the north west of London and Reading, and to the south of Birmingham. The western edge of the ring road is the A34, and the northern edge is the A40. It is a short distance from the M40.
The River Thames runs through the centre of the city, the Oxford Canal comes in from the north, and the River Cherwell from the north east.
OSM Coverage
Oxford is beginning to have excellent coverage in OSM. All the major roads and probably all of the minor roads within the ring road plus Blackbird Leys, Barton, Sandhills, Dean Court, Cumnor and Kennington are almost certainly complete. If we've missed the road you live on, please visit the OpenStreetBugs view of Oxford and add a red dot.
See Template:En:Map_status for an explanation of what the symbols and colours mean.
| Slice* | Name | Status | Remarks | Mapped/checked by |
|---|---|---|---|---|
| 14. | Sandhills, Risinghurst, Barton. |           
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achadwick checked 2009-03-23 | |
| 22. | Florence Park, Temple Cowley, Lye Valley |   
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achadwick checked 2009-04-06 | |
| 23. | Cowley Centre South and Oxford Business Park |       
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rjw62
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| 26. | Headington Quarry, Wood Farm |   
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achadwick checked 2009-05-31 |
NOTE: Work in progress. I'm converting the old list below into the new table format and saying more about the bits I've checked myself recently. If you could all do your bits, that's help. Perhaps we should use slice numeric order for the table?
Oxford Specific Tagging
(These are presumably also applicable to Cambridge) It may be insightful to look at Durham#Durham_Specific_Tagging.
Colleges
Represent Oxford College grounds with area tags representing each separate area owned by the college for the use of its students, including meadows, college buildings, playing fields, whatever.
Initially, if college grounds (or other similar areas, see below) went right to the street, they were mapped sharing nodes with the street. However this became impossible to maintain, so they are all now tagged with distinct nodes corresponding as accurately as possible with the actual boundary of the College.
Tag the enclosing area of the main site with:
- name=<name of college>
- amenity=university
- tourism=attraction
- learning=oxford_college
Annexes and other minor sites
Detached part of a college, and annexes should have in the name=* key the name of the area only (or no name key at all if the area is doesn't have a name of its own). The operator=* key should be used to indicate which college the annexe belongs to.
- name=<name of annexe>
- operator=<name of college>
- amenity=university
- learning=oxford_college_annexe
Quads and sods: college buildings and other sub-areas
Until relation support for buildings is improved, college buildings should be entirely within a college area (as described above), and tagged with
Tag areas of greenery within quads and elsewhere as either landuse=grass for simple lawns or leisure=garden for more flowery enclosures. Paved footpaths and walkways within colleges should probably be tagged as 
highway=footway or as 
highway=pedestrian,area=yes depending on their form. Almost certainly everything in this list should also be tagged access=private (or access=permissive); if an entrance fee is payable by the general public, tag with fee=* as well.
TODO: staircases, bars, ...?
Multipolygons are helpful for a lot of the shapes you'll encounter, enclosed quads in particular. Be sure to upload all inner and outer ways together in the same changeset to help mitigate a known problem with the Mapnik layer's data import.
We ought to try to map enclosing walls and fences once the building and walkways are traced or surveyed.
Permanent Private Halls
As colleges, but with
- learning=oxford_pph
instead
Other University areas
Parks and sports facilities should just be tagged as specified in Map Features perhaps with a tag to indicate access rights. Departments can be tagged as colleges but with
- learning=oxford_department
Puntable Rivers
Tag with:
Tag punt hire locations with:
20 mph zones
There was a manual import of data from County Hall at around the time the 20mph speed limits went in for the non-major roads. See Oxford/Archived#20_mph_zones for the archived discussion and supporting documentation. Complete OSM ways affected by this are tagged:
- maxspeed=20 mph
maxspeed:note=Oxford 20 mph zone
- maxspeed=20 mph
Some roads only have a 20mph limit for a part of their distance, as defined by the list we were given. We've split such ways then duplicated that sort of information into the tagging for ease of maintenance, so don't be surprised if you see something like:
- maxspeed:spec=<textual description of what defines this node's location or this way's limit>
on those partial bits. There should also be a tagged maxspeed=20mph node denoting the entry point, since it displays with a cute little restriction sign in JOSM, making the split obvious.
Bing, OS OpenData, Yahoo! and WMS for tracing
Several layers of good-quality aerial imagery and liberally licensed / out of copyright maps are available for tracing and checking.
- The Bing coverage within Oxford is of very high quality, and seems to be well aligned with GPS traces and roads in OS OpenData StreetView. The current set of imagery seems to date from roughly July 2007.
- Ordnance Survey Opendata StreetView is available for this UK city. The street names and shapes can be helpful, but the building outlines can be fairly rough. Correlate with other sources if you're using this data as a starting point.
- Yahoo aerial imagery coverage is also available, but is of lesser quality than the Bing data. Note that Yahoo! coverage is offset by a few metres; if you're using this source, be sure to manually offset your background layer to match GPS traces and more reliable sources before trusting the imagery: space+click+drag in Potlatch, or the per-layer offsets in JOSM's Imagery builtin. The fence around the Radcliffe Camera is reasonably correctly aligned. You could use that for realigning Yahoo! stuff too. (TODO: what year? Is it newer than Bing's?)
- Pre-1959 Ordnance Survey 1:2500 scale maps are being uploaded by achadwick to Geothings and rectified for use, and can be accessed via WMS in mapping tools. Coverage is incomplete and patchy but growing: rectified, all. You can help out by rectifying/cropping the unwarped uploads: use this Perl script to take away some of the pain.
Uses in Oxford
Some uses of openstreetmap specifically for Oxford.
Oxford University are using OpenStreetMap for the college information on some parts of their website example
Mobile Oxford (http://m.ox.ac.uk ) is a website for accessing Oxford related info on your mobile, intended for students and staff at the University of Oxford as well as the general publice. The maps section uses OpenStreetMap
See also
- Oxford/Archived - old plans and sections are moved here when they become no longer relevant or when the job's done.
