How gov decide where to build 4 lane,6 lane & Expressways/सरकार कहाँ 4 लेन और 6 लेन हाईवे बनाती है - YouTube
Shared 4-Lane Highway – Benefits of Transportation
How many feet wide is a four lane state highway? - Quora
2/4/6 Lane Highway Rules || Everything about Different Road Markings || DrivingHub - YouTube
Reconfiguring Urban Undivided Four-Lane Highways to Five-Lane: A Nonideal but Very Effective Solution for Crash Reduction | Journal of Transportation Engineering, Part A: Systems | Vol 146, No 10
4 lane highway hi-res stock photography and images - Alamy
4 lane highway hi-res stock photography and images - Alamy