What does a 2-plus-1 road have?
- Two motorway lanes and one non-motorway lane in two directions.
- Two non-motorway lanes and one motorway lane in two directions.
- Correct answerTwo non-motorway lanes in one direction and one non-motorway lane in the opposite direction.
- Two motorway lanes in one direction and one non-motorway lane in the opposite direction.
Explanation
A 2-plus-1 road consists of two lanes in one direction of travel and one lane in the other direction. The two-lane section allows for safe overtaking and alternates with a one-lane section roughly every 2 kilometres.
Read in Chinese
2+1 公路有什么特点？
- 两个方向各有两条高速公路车道和一条非高速公路车道。
- 两个非高速公路车道和一个高速公路车道，双向通行。
- 同一方向有两条非高速公路车道，反方向有一条非高速公路车道。
- 两个同向高速公路车道和一个反向非高速公路车道。
2+1道路由一个方向的两条车道和另一个方向的一条车道组成。双车道部分允许安全超车，并大约每2公里与单车道部分交替出现。
