How does that work - I have numerous very local examples of highway=tertiary (for example) where the speed limit changes between three values (30, 40, 60 mph) within quite short distances.
And after spending a summer driving in Finland I decided that there is a Finnish law that says that the speed limit on any given road must change (usually in increments of 20 kph - but sometimes 10 kph) at least once every 500 metres - with the speed cameras usually strategically placed to make sure that you need to care about this! (No - I'm not complaining - I didn't get caught - yet!). Mike Harris > -----Original Message----- > From: Morten Kjeldgaard [mailto:[email protected]] > Sent: 14 October 2009 20:31 > To: [email protected] > Subject: Re: [OSM-newbies] Highway Types and Speed Limits > > > On 14/10/2009, at 10.06, Trevor Hook wrote: > > > When I'm tagging say, a residential street, should I also > be tagging > > the 30mph speed limit that the residential street implies > (at least in > > the UK) or should I only tag if the street has a non-standard speed > > limit such as 20 or 40mph? > > Is it really a good idea to tag the speed limit with a value? > Say the government decides to decrease the speed limits of > all rural roads with 5mph (e.g. to reduce CO2 emission), then > you have to correct the tagging on all roads. And it can't be > done using a script, since some roads with the same speed > limit value maybe shouldn't be changed. > > I think it would be better to use a road classification > scheme for speed limits; then the mph value only needs to be > changed one place, namely the database entry that ties a > certain classification to a speed limit. > > Cheers, > Morten > > > > _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/listinfo/newbies
