A while ago I was creating a mapserver for a sister company, we shelved the
project but I recall GIS data that had what you need. It's often freely
available and road data files tend to have speed limits and road
classifications.
While I don't remember exactly where I go the data I had from, but it looks
like there is free road data here:
http://data.geocomm.com/catalog/UK/group103.html
I don't know if that file contains road specs or limits, but it's definitely
out there.
On 16 March 2010 12:51, Tim Brocklehurst <timb@???>wrote:
>
> On Tue, March 16, 2010 11:34 am, Edward Beckmann wrote:
>
> > So, the idea is to suck the data out of a gps device (not that I have
> > one),
> > and then ask it stuff. I assume that gps data is a database with name,
> > class, start point, end point, speed grading, speed limit etc. Can anyone
> > help please (suggesting I get a push-bike and stop polluting the planet
> is
> > not necessarily classed as help, in case you were tempted)?
>
> Ed,
>
> OpenPilot will do bits of this for you. The steps go something like:
>
> 1) Obtain a hand-held GPS.
> 2) Ride the route to get a GPS track of where you've been.
> 3) Save it as a track file on the GPS.
> 4) Upload said file to Computer.
> 5) Use a tool that handles GPS data to load the track. and manipulate it
> as you wish.
>
> In step 5, the GPS data is usually stored as just a series of NMEA0183
> (possibly proprietry) sentences. These are pretty easy to read, and
> OpenPilot has code to do this for Magellan GPS tracks. Once you've read
> the data you'll have a time and location. You can then plot this on a map,
> reference it against OpenStreetmap etc. etc.
>
> OpenPilot does a fair amount of GPS handling in the Map widget.
>
> If you need any further help, don't hesitate to ask,
>
> Tim B.
> --
> OpenPilot - Open-source Marine Chart Plotter
> Lead Developer
> http://openpilot.sourceforge.net
>
>
>
> --
> Please post to: Hampshire@???
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>
