earticle

영어

The landscaping of the interchange area is an important part of the highway. However, when the interchange area is far away from the city, irrigation and maintenance for landscaping are very difficult. Highway runoff is collected and treated, combining with automatic drip irrigation system may be an available way to cope with water shortage and maintain the landscaping. Furthermore, ecological structure, environment protection and economical development must be
comprehensively considered in highway design. This paper took an interchange ramp area of Bingzhou highway, Shandong, China for example. A discharge system was designed to collect the rainwater and an automatic drip irrigation system was designed to irrigate vegetation in the slope of the interchange lamp. However, there are too many pollutants in the highway runoff to irrigate vegetation directly. The first flush rainwater diversion, sedimentation pond and constructed
wetland were used for the treatment of highway runoff. The design of the integration of rainwater harvesting system, rainwater treatment system with supplemental irrigation into the vegetation of the slop can relieve the pressure of water resource by increasing water utilization efficiency, protecting the receiving environment, decreasing the wastewater treatment costs. It may provide a guide for the slope greening in other interchange areas.