[Tagging] Carriageway divider

Elena ``of Valhalla'' elena.valhalla at gmail.com
Mon Aug 20 08:39:40 BST 2012

On 2012-08-19 at 14:09:18 +0200, Markus Lindholm wrote:
> In my opinion it's best to treat legal separation (i.e. solid_line)
> the same way as physical separation, i.e. create two separate
> highways, one in each direction.

This doesn't correspond to reality: I believe that an emergency 
vehicle can cross a solid line, while of course they would 
have problems with a physically separated road.

Also, the presence and style of line in the middle of the road gives 
additional informations that could be useful for the users.

* Dashed line: you can overtake wide veicles; probably related 
  to the available speed and chances to be blocked by something slow.
* No line: this road is not wide enough to have two proper lanes: 
  if you meet another car have to slow down, or possibly even 
  stop; a router can use this information to choose another 
  slighty longer, but wider road, even in the absence of a precise 
  width tag.

Elena ``of Valhalla''

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