Study On The Application Of Traffic Volume Prediction And Optimization Of Pavement Structure In Leiyi Expressway

With the rapid development of national economy,the traffic volume of Expressway increases rapidly,and the rapid growth of traffic volume makes the service level of existing expressway drop sharply.In the process of highway overhaul,the service level should be improved to minimize the investment and meet the requirements of current and future highway driving comfort and carrying capacity.It is very important to study traffic volume and pavement performance.This paper combines the research data from the project establishment to the final implementation of the overhaul project of Leiyi Expressway to form the final results.In the early stage of Leiyi expressway project,the whole traffic volume is comprehensively and carefully analyzed,and the traffic volume in the future is predicted,which provides important reference data for the determination of the whole overhaul project and economic feasibility;at the same time,after the project is established,the original pavement of Leiyi expressway is comprehensively investigated and various different pavement are counted in detail The type,at the same time,the original pavement bearing capacity is tested,and the information of the degree and location of the main pavement diseases is recorded as the important basis for determining the overhaul plan in the later period;finally,according to the above data,the paper discusses and analyzes the scheme several times,mainly considering the following aspects:first,Leiyi expressway is located in the provincial section of Beijing Hong Kong Macao national expressway The traffic with large and heavy loads is serious,the road diseases increase year by year,the maintenance cost is increasing year by year,which has lost the economic nature of the expressway.The overhaul project must take this issue as the key consideration;secondly,the economic feasibility results from traffic volume analysis are optimistic.From the perspective of improving the service level at present and in the future,we can consider strengthening appropriately The third is to improve the comfort of driving,speed up the capacity of highway and reduce the occurrence of accidents.Thus,the final construction scheme is formed.Through the research on traffic volume prediction and pavement structure optimization scheme,it is of great significance to produce targeted data support,scheme guidance and economic prediction,and form a reasonable and effective highway pavement structure design and optimization plan,which is of great significance to improve the comfort,safety and recovery of the economy of expressway.