How wide is a bidirectional six-lane road?

[Trevor]

The subgrade width of a bidirectional six-lane road is 33-36 meters. Here is the relevant introduction: A bidirectional six-lane road refers to a road with six lanes for vehicles to travel longitudinally, with every three lanes arranged in the same direction. According to national standards, the design speed should not exceed 60 kilometers per hour, with each lane being 3.5 meters wide, resulting in a subgrade width of 33-36 meters for bidirectional six-lane roads. At traffic light intersections, the three lanes in the upward direction of a bidirectional six-lane road are divided into left-turn, straight, and right-turn red light waiting lanes. Bidirectional six-lane roads are widely used in prefecture-level cities, generally with asphalt or cement pavement. The lanes in each direction are sequentially divided into left, middle, and right forms, which helps maintain traffic order.