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）。
1. Vehicle roadway isolation facilities are used to separate the opposite or the same direction of traffic flow, and prohibit vehicles from turning left in and out of traffic and pedestrians crossing the road at will, generally set on the road center line or lane separation line. Vehicle roadway isolation facilities are divided into the central isolation facility (opposite separation) and the separation facility (same separation).
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。
2. Vehicle roadway isolation facilities mainly adopt three forms: green partition, barrier, concrete anti-collision wall. In the urban area, the preferred forms are greening partition belt and isolation barrier; in the suburban area, the preferred forms are greening partition belt, concrete anti-collision wall and isolation barrier.
3．同一道路上应设置统一样式的车行道隔离设施。
3. on the same road, a unified style of road isolation facilities should be set up.