Study of Expressway Roadway Translation Based on Asphalt Pavement Rutting Model

It is an important topic on how to effectively manage highway maintenance with limited resources. It becomes even more critical when the demands for highway transportation increase significantly. Traffic channelization design as a technical method to divide traffic flow is a traffic organizing method. It can achieve good results in a very short period with minimum budget, but it may result in wheel path concentrated in the transverse profile of a pavement. To preserve pavement resources, this paper presents the expressway roadway translation method, which is based on asphalt pavement rutting model. It composes three basic design steps: (1) constructing rutting model, (2) designing translation plan, and (3) implementing the translation plan. A case study for Qingyin expressway is presented. The condition survey results indicated that there is good safety and it delays maintenance by 1.5 years. The expressway roadway translation method is sound in theory, clear in design procedure, and simple in operation. It has important theoretical and practical value by offering a completely new way of expressway maintenance management.