Why are some roads which have three lanes and then reduce to two lanes when the road width hasn't changed? - Quora
On a 3 or 4-lane road or highway in America which is the inside lane and which is the outside lane? - Quora
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Method for Modeling Lane-Based Driving Discipline of Drivers on Divided Multilane Urban Roads | Journal of Transportation Engineering, Part A: Systems | Vol 147, No 4
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