关键词: 自然区划, 公路, 重庆, ArcGIS, 指标体系, 类型体系

Abstract: Facing the problem of current standards of natural zoning of highway in the feasibility of Chongqing highway construction, the new general research plan is brought forward according to the actual circumstance and the AcrGIS analyzing software; then aiming at the different impact on road construction influenced by elevation, gradient, surface incision density, rock-soil type, vegetation resources, climatic resources, geological hazards and so on, the three-level zoning guide line system suit for the natural and geographical environment of this region is brought forward ; finally, the category system composed of individual natural zoning for Chongqing highway, thematic natural zoning for Chongqing highway and natural zoning for Chongqing highway is established. This method takes more factors and deeper zoning into consideration, and can provide better service to the local highway construction, which promotes the development and consummation of the current zoning standards.

Key words: natural zoning , highway , Chongqing , ArcGlS , guideline system , category system ;