| With the increase of the number of motor vehicles and the change of people’s consumption concept,more and more people choose to travel by car,and pay more attention to the driving experience and the service quality of the destination.At the same time,the rapid development of theme parks has attracted a large number of self driving tourists and brought many traffic problems to the surrounding areas.Therefore,this paper focuses on the large-scale urban theme park with large traffic impact,aims to guide self driving vehicles to find the destination smoothly through the reasonable layout of traffic guidance signs,so as to provide new ideas for the renewal and layout of signs in large-scale theme park,and reduce the generation of surrounding traffic problems.Based on the analysis of the road network characteristics and traffic demand around the large theme park,this paper studies the factors and classification of the traffic influence scope of the large theme park,so as to do the preliminary work for the layout of the traffic guidance signs in the large theme park.At the same time,according to the characteristics of the road network around the theme park,the traffic demand is analyzed,and the combined prediction model is selected to predict the passenger flow in the next year,so as to use the prediction results to analyze the OD demand between the region and the theme park and the distribution of tourism traffic volume on the road section,so as to lay the foundation for the evaluation of the preliminary layout results of traffic guidance signs.The premise of layout planning of traffic guidance signs is to determine the layout scope.Based on the analysis of the psychological process of travelers and the research status of traffic impact scope of existing construction projects,the layout scope model of primary traffic guidance signs in large theme parks is established based on the concept of traffic accessibility,Taking the traffic location and other factors of large theme park as parameters,the layout range model of secondary traffic guidance signs is established.Because the number of signs is small and the location is relatively fixed within the layout scope of level 1 and level 3 traffic guidance signs,and level 2 traffic guidance signs play an important role in connecting the preceding and the following.Therefore,this paper establishes the location planning model of level 2 traffic guidance signs,which takes the layout cost of signs as the constraint condition,Taking the maximum traffic guidance amount of signs as the objective function,the model is solved by a genetic algorithm integrated with Metropolis acceptance criteria.Finally,the guidance coverage rate and the coefficient of guidance signs are taken as the evaluation indexes of the layout results,so as to ensure that the layout of traffic guidance signs can meet the needs of sign users,thus forming a set of layout methods of traffic guidance signs in large theme parks.Finally,taking Chongqing Happy Valley as an example,this paper analyzes and verifies the whole process of the layout of traffic guidance signs in large theme park,and verifies the scientificity and feasibility of the establishment of the quantitative model of the layout scope of traffic guidance signs and the layout of traffic guidance signs. |
