Research On Capacity Model Of Basic Section Of National And Provincial Highway In Shandong Province

Combined with the actual road and traffic conditions in Shandong Province,this paper carries out research on the traffic capacity model and its application for the basic sections of the current national and provincial highways,and its main research purpose is to supplement and improve the design standards for the basic road sections of the national and provincial highways in our province.Due to the certain differences in the road system,traffic composition and traffic control in Shandong Province,the output value and the actual value may be largely incorrect by directly quoting relevant foreign research results.To this end,it is necessary to systematically study the capacity model of the basic section of national and provincial highways with strong regional traffic characteristics.The research work in this paper is based on the research on the traffic capacity of the basic section of the existing high-grade highway,through the investigation and observation of road traffic parameters in the ordinary national and provincial road sections of Shandong Province,and the mathematical statistical method,density factor method and follow-up theory are used to establish a mixed traffic circulation capacity model.Subsequently,the measured data and related studies were used to calibrate the model parameters,and the traffic capacity changes of different combinations of mixed traffic flows were analyzed;finally,the model is validated for adaptability through engineering cases.The final research results obtained in this paper can provide an important theoretical basis for the planning and design of the road network,the feasibility study of the project,and the post-construction evaluation of the road section of the national and provincial roads in Shandong Province,and can also provide a reference basis for future research on related issues in this regard.