出于对安全因素的考虑，公路有宽阔的车道和路肩、中央分隔带、界限、长长的出入口车道、为安全转弯而设计的弯道，以及限定数量的入口。
Built with safety in mind, the highways have wide lanes and shoulders, dividing medians, or barriers, long entry and exit lanes, curves engineered for safe turns, and limited access.
在住宅区公路上，注意观察学校出入口，人行横道，私人车道，人行道或任何可能发生交通危险的路段。
On a residential road, watch out for entrances to schools, pedestrian crossings, driveways, sidewalks and any other locations where there might be traffic hazards.
出入口专用可以避免公交车与汽车抢道，使用中间车道可以避免小汽车转弯造成的延误。
Exclusive to avoid traffic conflicts with cars, and the middle lanes to avoid delays caused by turning cars.
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