Abstract:
Nowadays, road and surface failure has become a critical issue in our country on the flexible pavement shown a bad quality and an error in the design stage. The thickness design of flexible pavement has become crucial elements in the overall efficiency of highway structure system to give a good performance and high serviceability under traffic loading during the expected design period.
The objectives of this study are to develop flexible pavement thickness design software for AASHTO and ROAD NOTE 31 by using Visual Basic DOT NET. This computer software could produce the design thickness of each layer for flexible pavement structure in graphical layout for both design methods. Therefore, the users can easily analyzed the result obtained to select the best design method between AASHTO and ROAD NOTE 31 based on thickness and cost. Thus, performance of this program was successful tested and validated. Therefore, computer software flexible pavement thickness design is very useful tool in highway engineering. By applying the computer program, the design stage can be made in a very short time period of design process and help to minimize the error factor compare to manual calculation or conventional method. Computer software also can give high accuracy and quality of result for pavement thickness design.
