摘要：Shrub-grass vegetation was established on the rocky slope of Longhui-Dongkou Section of Shaohuai expressway (Shaoyang to Huaihua) by following the below procedures: ① According to regional climatic characteristics, grasses like Cynodon dactylon, Papalum natatum and Sorghum bicolor (L.) Moench can be applied as pioneering species, local shrubs with drought, cold and infertility resistance like Nerium ndicum Mill., Amorpha fruticosa, Pyracantha fortuneana, and Mycoplasma organism as constructive species, local arbors like Robinia pseudoacacia and Albizia kalkora as accompanying species; ② Slope should be treated first before the establishment of shrub-grass vegetation, then anchored, and covered with nets after the mortar solidified and hardened; after the base materials spraying which includes both substrate spraying and surface spraying, the slope should be promptly covered with non-woven fabrics. The results showed that green coverage ratio of shrub-grass vegetation achieved 90% or above, all quality indexes met the expected standards, which implied that the establishment of shrub-grass vegetation is a rapid and effective way for the vegetation restoration of rocky slopes along expressways, and worth of being promoted in similar climatic zones.

摘要：Applying the visual simulation technology to highway engineering, an expressway visual simulation system for the analysis of landscape design proposals is built during the construction of Xiaoxiang expressway. Its functional requirements and overall architecture are presented. The 3D model of expressway is created with AutoCAD DWG files as source data and the dynamic design method of expressway landscape elements is introduced. A data analysis interface dedicated to the landscape evaluation is developed. The system offers an effective tool to facilitate the analysis and evaluation of the road landscape proposals.

摘要：The concept of cultural landscapes was introduced,and it was proposed that the construction of highway cultural landscapes should follow the principles of "protection first,secure,integrated,suitable for actual conditions,economic,natural and ecological".In this study,relevant theories were taken to analyze the design of cultural landscapes along the Ya'an-Luguhu expressway in Sichuan *** conditions,profound cultures and historical resources in the study area were analyzed,and the construction of its cultural landscapes was further discussed from the perspectives of properly dividing landscape spaces,determining the orientation of cultural landscapes,refining regional cultures,choosing carriers of cultural landscapes,improving cultural value of important landscape nodes by using artistic settings,applying more local materials and so *** that helpful references could be provided for the landscape design of other expressways,and the integration of cultural landscapes and highway landscape system could be realized.