<rule e="way" k="network" v="iwn AND nwn">
2 conditions should form AND:
<rule e="way" k="network" v="iwn">
<rule e="way" k="network" v="nwn">
But you won't find that kind of routes on my maps.
I have 2 ideas about multiple routes on one way:
- add some artificial tag, like "instance=2" or "instance:lcn=2" on second route,
- draw second route in opposite direction,
I'd rather prefer first idea, this won't change anything in OSM data.
Popej, sorry I meant iCn and nCn

About route names: I also prefer first method. I wonder how that would work? Drawing second route in opposite direction isn't a best idea, what if we have 3 or more routes on the road?

EDIT: What I'm trying to achieve:
Example 1: 1 blue route on the road shows solid blue line.
Example 2: 1 blue and 1 green route on the route shows dashed blue/green line.
<rule e="way" k="state" v="~">
<rule e="way" k="osmc" v="*">
<rule e="way" k="route" v="bicycle" zoom-min="17">
<rule e="way" k="osmc_color" v="blue">
<line stroke="#880000FF" stroke-width="5" stroke-linecap="round" />
</rule>
<rule e="way" k="osmc_color" v="blue">
<rule e="way" k="osmc_color" v="green">
<line stroke="#880000FF" stroke-width="5" stroke-dasharray="10,10" stroke-linecap="butt" />
<line stroke="#88008000" stroke-width="5" stroke-dasharray="0,10,10,0" stroke-linecap="butt" />
</rule>
</rule>
<rule e="way" k="osmc_color" v="yellow">
<line stroke="#88FFFF00" stroke-width="5" stroke-linecap="round" />
</rule>
<rule e="way" k="osmc_color" v="green">
<line stroke="#88008000" stroke-width="5" stroke-linecap="round" />
</rule>
<rule e="way" k="osmc_color" v="red">
<line stroke="#88FF0000" stroke-width="5" stroke-linecap="round" />
</rule>
<rule e="way" k="osmc_color" v="black">
<line stroke="#88000000" stroke-width="5" stroke-linecap="round" />
</rule>
<rule e="way" k="osmc_color" v="white">
<line stroke="#9966FF" stroke-width="3" stroke-linecap="round" />
</rule>
</rule>
</rule>
</rule>
But it doesn't seem to work....
This part dosn't display at all
<rule e="way" k="osmc_color" v="blue">
<rule e="way" k="osmc_color" v="green">
<line stroke="#880000FF" stroke-width="5" stroke-dasharray="10,10" stroke-linecap="butt" />
<line stroke="#88008000" stroke-width="5" stroke-dasharray="0,10,10,0" stroke-linecap="butt" />
</rule>
</rule>