[mkgmap-dev] no_u_turn

Sun Oct 4 19:03:39 BST 2009

Hi Paul,

> Can I make this a feature request then? :) Consider the following
> 
> A       B       C
> --------+------->
>         |
> <-------+--------
> D      E|       F
>         |
>         \/
>         G
> ABC is oneway in direction ABC
> FED is oneway in direction FED
> BE is twoway but is marked with direction BE
> 
> U turns are not allowed for FEBC nor are they allowed for ABED
> 
> I have several of these near me and I'm sure they're fairly common (if
> not yet in the OSM database). Current mkgmap maps will tell me to make a
> U turn (FEBC or ABED)

Well, that's a lovely bit of ascii-art. I understand completely what
you want to achieve. Isn't it the same as having a no_right_turn for
BED and a no_right_turn for FEB?

Cheers,

Mark