[OSM-talk] Advanced highway tagging

[Simon Hewison]

Andy Allan wrote:
> Do you have any *specific* examples? For example where two motorways
> in Google Maps are rendered in different colours?

http://maps.google.co.uk/?ie=UTF8&ll=50.927492,1.93119&spn=0.104087,0.233459&z=12&om=1

(Calais, France)

Okay, so one of them (A26) is an autoroute péage, and one (A16) doesn't 
charge a toll. The distinction is obviously there in the underlying Tele 
Atlas database; and someone at Google decided to render a french 
autoroute péage in a darker orange than non-péage.

Google have also decided that UK and Ireland are used to seeing maps 
with motorways in blue (like Ordnance Survey / AA), and that the french 
are used to seeing them in orange (like Michelin). On the ground, 
they're pretty much identical (aside from the french prefer driving on 
the right).

-- 
Simon Hewison