Re: [mkgmap-dev] Reduce road class/speed when road is narrow

Hi Clinton, Thanks for the response.

I suspect you could do it with something like the following:

highway= primary & (width=narrow | width < 2 | est_width < 2) [0x04 road_class=2 road_speed=3 resolution 20]

highway=primary [0x03 road_class=3 road_speed=4 resolution 19]

(This would demote a primary road to the equivalent of a secondary.) I, however have not tested this, so I cannot confirm if this would work.

It probably has to cope with widths that have either m or ft suffix (I have also seen widths in the UK as 6'6" !). Can the style file hack that? Cheers, Mark