[Talk-us] Marking of turn:lanes in the cases of an implied right turn

[Saikrishna Arcot]

Hi all,

I'm working on adding turn:lanes to roads at traffic lights, and am also working on adding support for reading turn:lanes in OsmAnd (Android). I'm wondering on how to mark turn:lanes in the case of an implied right turn. For example, let's say that you're approaching a traffic light and there are four lanes heading in your direction. The left-most (1st) lane is indicated as a left-only lane. The second, third, and fourth lanes are unmarked (therefore, it would be none for these lanes). This would mean that the second and third lanes are straight-only, and the fourth lane is straight and right (let's assume a right-turn is allowed here).

In this scenario, would this be marked as left|none|none|none or left|none|none|through;right, and if it's the former, would data consumers have to infer from the turn restrictions and see that a right turn is allowed there?

-- 
Saikrishna Arcot
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