What is the standard lane width?
1 Answers
Standard lane width: For a four-lane bidirectional road, it is 2*7.5 meters; for a six-lane bidirectional road, it is 2*11.25 meters; for an eight-lane bidirectional road, it is 2*15 meters. The country has standards for the width of each motor vehicle lane on highways. For multi-lane highways above grade three, the width of each motor vehicle lane is 3.5~3.75 meters. There is no unified standard for the central median, which is determined according to local conditions. A simple cement central median is one meter wide. If it is a central green median, there is no unified standard for the width. Some 'image projects' can have medians as wide as several tens of meters.