| In our country, with the improvement of people’s lives level, the cars have been intopeople’s daily life. Especially since implemented “holiday long vacation†and the free policyabout highway in significant holiday in our country, self-drive tourism presents blowoutdevelopment, tourism have gradually developed into a personalized travel of diversifiedtopics from a low expense and popularity traditional tourism The highway traffic has theadvantages of flexible, fast, convenient and easy to direct, though the planning of tourismhighway, the highly conformity on the resources of highway and tourism along the road hasbecome a travel tourism development topics. In recent years, most of the provinces in Chinaare sparking a climax of the tourism highway construction, the construction of tourism hasbecome the most active local infrastructure construction market. However, with the missingabout the layout method of the regional tourism highway and special tourism highway plan,we need to establish a special tourism highway network layout theory and method urgently,and target to develop the tourism highway network plan with the aspects on national orregional for the guidance of national tourism highway layout and to improve the connectivityof tourism resources in different administrative regions, then to optimize and improve tourismresources utilization.In this paper, on the basis of the evolution of the concept of tourism highway andretrieval and analysis of tourism highway planning, first, we need to define the tourismhighway and the tourism network concept and analyze tourism highway unique connotationand characteristics. Secondly, using the coupling theory to establish a coupling degree modelbetween tourism highway network system and tourism resources system, from the angle oftime-space quantitative reveals the main factors and the coupling degree of space couplingbetween the tourism highway network and the tourism resources. The trend of tourismhighway development will be the value of resources and guide the development of the tourismhighway from the simple transport to the tourism value of highway tourism.Based on the analysis of the characteristics of tourism highway network and couplinganalysis results, with the tourism resources as the tourism highway network planning node, can calculate the importance on tourism resources which is based on coupling correlationdegree between the tourism highway network and the tourism resources, then proposed thetourism highway network layout in layer, gradual optimization theory and method.Proposing a node partition method on the basis of the tourism resource evaluation,established an evaluation model of tourism resources which is based on genetic algorithm andBP neural network. In this model, tourism resources are divided into three levels, differentlevels of tourism resources tourism highway network distribution determines the line functioncharacteristics and the trend of tourism resources, as the tourism highway network planningnode, considering the tourist highway functional classification and tourism resourcesclassification, according to three levels of layout, thereby determining the tourism highwaynetwork planning scheme. Establish a connection on the tourism resources of the road androute of gravitation model calculation model, which can determine the route of constructionstandard. On this basis, considering the tourist highway functional classification of tourismresources and its hierarchy, put forward tourism highway network layout method and layoutmode, the first as the city hub-scenic highway, the second level for the scenic-scenichighway, third levels for scenic area road.On the basis of preliminary layout,thoughts and methods of tourism highway networklayout and gradually optimized is put forward from three aspects, the minimum travel time,ecological environment impact assessment and highway tourism value evaluation. First of all,to tourism highway network structure model as the object, the minimum travel time of thetourism highway network layout optimization model is constructed and the parameters of themodel are calibrated. And a new algorithm based on hybrid genetic algorithm is given. Withthe constraints of a given tourism resources, tourism value and tourism resources density in agiven area, the scenic area tourist road network and tourism resources connection and alsotraffic structure are adjusted in order to make the total travel time of tourism to achieveoptimal. Secondly, from the ecological sensitive area impact analysis, biological resourcesinfluence analysis and drainage impact analysis these three aspects, using GIS range diagrammethod to find out the planning line which through the sensitive area or near the distancesensitive area. According to relevant requirements optimization tourism highway networklayout to keep the line and ecological sensitive area having enough safety distance and minimize the tourist road’s influence on the ecological environment. Characteristic line withhigh value of tourism and tourism is screened based on the existing road network andplanning for highway tourism value evaluation Finally, in view of the difference betweentourism highway and other highway, highway tourism value core elements system is builtfrom the visual, natural, historical, entertainment, culture and archaeological these six aspectsand so on. The different characteristic tourist value is given and the tourism highway isdivided into different levels with its own tourism value of different level. This kind ofclassified methods breaks through the original road hierarchies principle. Using this as atourist highway construction standard basis in order to outstand the tourist valuecharacteristics of tourist road. Finally, the tourism highway network layout scheme is formed.This article takes highway network planning of Hainan tourism as an example to verify.According to the characteristics of tourism resources of Hainan province, based on theexisting trunk road network, through the tourism resources evaluation to determine networknode, and divided the function of tourist road level, formed road network distribution schemebased on the tourism resources evaluation. According to gradually optimized theories, use theminimum travel time, ecological environment impact assessment and highway tourism valueevaluation as a constraint condition, to optimize the results of the tourist road network layout,then get the final layout program. Layout scheme results show that, the layout results will notonly include the current tourist routes and optimize local alignments, improve theconvenience degree of understanding or environmental conditions along the line. At the sametime, for different regional key tourist resources, the new tourist routes satisfy theunderstanding and take into account the needs of tourism development of underdevelopedareas. |