Research On The Highway's Comprehensive Optimization Methods

With the rapid development of Chinese economic and infrastructure,the requirements of highway?s index will increase,which include expressway?s capacity,security,pavement maintenance and guide system.Based on the construction of highway development,at this stage,the transport facilities and conservation methods can not fit the current usage requirements.At the same time,the substandard of construction,facilities and management is the main factor of traffic accidents.Therefore,it is imperative to carry out comprehensive optimization of expressway in our country.At first,aimed at the current situation of maintenance and management of expressway pavement in China and take the provincial-level highway pavement maintenance as the research object,analyze the main diseases and causes of asphalt pavement and expound the performance evaluation method of asphalt pavement,then make the frame of optimization about decision-making.Then,identify the basic data of highway technical performance evaluation and reconstruction of the design and construction status.,take the traffic flow organization in the expressway expansion period as the object,in order to carry out optimization research.Based on the analysis of the influencing factors in traffic flow organization during the expressway expansion period,use system analysis method to optimize traffic flow organization.So as to achieve the reasonable and balanced interests of the traffic flow organization plan during the expressway expansion.After that,by analyzing the frequent factors of actual traffic accidents,start from the driver's identity to optimize the guidance and safety facilities.At the same time,analyzing the shortcomings of expressway safety facilities and traffic signs and proposing a system of highway safety facilities check list,which is in order to achieve the fundamental purpose of reducing the frequency of traffic accidents.Finally,integrate all the optimization schemes,synthesize a set of highly feasible expressway optimization measures,then implement them as soon as possible.