普通高等级公路与高速公路不同,日行车环境复杂,平交道口、中央隔离带断带口多,且敞开式管理,行人、小型动物等随意横穿马路,突发事件经常发生。河北廊坊市公路处在绿化中融入安全理念,通过绿化让美丽与安全兼得。美丽安全兼得在中央隔离带断带口绿化中充分考虑视线通透问题,一般认为小轿车司机的安全视高为0.7米,所以他们特别注重中央隔离带断带口两侧植物高度的控制。比如,将廊霸线原桧柏球改造为金叶女贞等矮小灌木植组,植 Ordinary high-grade highways and highways are different from the complex environment of the day trip, level crossing, the central isolation zone with more than broken, and open management, pedestrians, small animals and other free to cross the road, emergencies often occur. Langfang City, Hebei Road in the integration of green in the concept of security, through the green so beautiful and safe both. It is generally considered that the safety of a sedan driver is as high as 0.7 m, so they pay special attention to the control of plant height on both sides of the cut-off point of the central isolation belt. For example, the corridors of the original juniper plover ball transformation of Prunus cerasitungensis and other small shrub planting, planting