隔离墩特点：
Isolation pier features:
1．车行道隔离设施是用来分隔对向或同向行驶的交通流，并有禁止车辆左转进出行驶和行人任意穿越道路的作用，一般设置在道路中心线上或车道分隔线上。车行道隔离设施分为车行道中心隔离设施（分隔对向）和车行道分界隔离设施（分隔同向）。2．车行道隔离设施主要采用三种形式：绿化分隔带、隔离护栏、混凝土防撞墙。在市区范围内，优先选取的形式依次为绿化分隔带、隔离护栏；在市郊范围内，优先选取的形式依次为绿化分隔带、混凝土防撞墙、隔离护栏。
1. Roadway isolation facilities are used to separate traffic flow in opposite or same direction, and have the function of forbidding vehicles to turn left and pedestrians to cross the road at will. They are generally set on the road centerline or lane separation line. Roadway isolation facilities are divided into roadway center isolation facilities (separation in opposite direction) and roadway boundary isolation facilities (separation in the same direction). 2. There are three forms of roadway isolation facilities: green separation belt, isolation barrier and concrete anti-collision wall. In the urban area, the preferred forms are greenbelt and barrier; in the suburban area, the preferred forms are greenbelt, concrete anti-collision wall and barrier.