Lane tagging help

Hi!

I need some help tagging turn lanes in some Portland roads.

Here’s an example of a confusing scenario. Lane config:
left marked | implicit straight/right

Do I mark the implicit straight/right as none? That doesn’t feel right as then lane displays e.g. in routing apps wouldn’t pick up on the implicit straight/right lane.

To make things easier, could you please give us a link to the spot?

Sure! Here’s an example: 45.564861, -122.835607

I’m talking about northbound traffic. The left lane is implicitly left only, and the right turn lane is implicitly straight/right only.

Common sense leads me to think I should use a value of “left|straight;right”. But the wiki suggests “none|none” because there are no physical markings.

A value of left| should work fine.

There is a marked arrow on the left turn lane, isn’t there?
In that case, you should tag turn:lanes:forward=left| or left|none. I personally prefer the former, but it is already tagged correctly, so no need to change it.