A Study On The Relationship Of Highway Design And Land's Intensive And Economical Utilization

With the Chinese government continual strengthening the investment in infrastructure and the field of expressway, and the rate of the expressway in the land which is available will gradually improve, how to use the land effectively, to realize both the economic benefit and social benefit maximization, has become an important parameter in expressway design.During the process of highway design, it should to be considered adjusting to local conditions, combining environment of route along, land exploitation, coordination and application of reclamation, to make full use of each piece of land, making sure that occupying land to paying land and cultivated land occupied as less as possible. This article mainly starts from the national highway construction and land use status, through the analysis of the current route design, roadbed design and bridges, interchange the and tunnel choice's relationship with the effective utilization of the land, it proves how to realize not only the rapid development of expressway, but also guaranteed to economize land. According to the actors of highway linear design, to adopt advanced technology for that it can save land as much as possible. Covering less farmland, and do not or less occupying economic crops. To determine the height of roadbed reasonably, and try to less dig and fill. By the way of the Bridges, overpasses, and utility tunnels'design, it can reduce road curved and loopback, and reduce route length, even to restrain land occupation.Finally, combined with the example of WuDing highway, to select a reasonable route solution from several aspects of road safety, flat longitudinal index, quantity, demolition of occupying land, through an detailed analysis to the route choice of WuDing highway in land economical utilization, to explain the importance of route choice in economizing land, it all proved that the efficient methods to exploit land in highway design and construction process. The article is on how to realize the economical utilization of land in highway design in our country, and it will play a guiding role in the future in the highway construction.