透過您的圖書館登入
IP:3.133.12.172
  • 期刊

Development of Roughness Prediction Models Using Alberta Transportation's Pavement Management System

並列摘要


Alberta Transportation conducts annual automated International Roughness Index (IRI) surveys on the core highway network in the province. The measures are used to rate the physical condition of each pavement section in the Pavement Management System (PMS) to establish rehabilitation strategies for the year. Future rehabilitation needs are predicted based on highway sections' age, using the Highway Pavement Management Application (HPMA) sigmoidal IRI function, which does not consider the effect of climatic and pavement distresses or structural design. IRI prediction models incorporated in the Mechanistic Empirical Pavement Design Guide (MEPDG) and Highway Development and Management (HDM) require comprehensive and detailed distress records. Such data records are not fully available for Alberta yet, making it difficult to calibrate these models for local conditions. The present study focuses on identifying the significant climatic, structural and distress-related variables to IRI for Alberta's highway network. The data available in Alberta's PMS was used to develop two new IRI prediction models for New, and Straight Overlaid Asphalt Concrete (AC) sections with Granular Base Course (GBC). Regression analysis revealed that variables such as age, traffic, subgrade fines, rutting, transverse and miscellaneous cracking are most significant to IRI for new AC sections. Further, IRI for overlaid AC sections was found to be dependent upon age, traffic, Freezing Index (FI), GBC and AC overlay thickness, subgrade soil plasticity and rutting. The model for new AC sections was able to predict IRI for the General Pavement Sections (GPS)-1 of the Long Term Pavement Performance (LTPP) in Alberta, Manitoba and Saskatchewan.

並列關鍵字

Climate Pavement distress Roughness

參考文獻


Alberta Transportation (2011). Annual Report 2010-2011. Alberta Transportation, Government of Alberta, Edmonton, Alberta, Canada.
He, W. (2012). Alberta Transportation. Technical Standards Branch, Personal Communications, Government of Alberta, Edmonton, Alberta, Canada.
Wang, T., Hamann, A., Spittlehouse, D.L., and Murdock, T.Q. (2012). Climate WNA - High-Resolution Spatial Climate Data for Western North America, Journal of Applied Meteorology and Climatology, 51, pp. 16-29.
Hand, A.J., Seabaaly, P.E. and Epps, J.A. (1999). Development of Performance Models Based on Department of Transportation Pavement Management System Data, Transportation Research Record, No. 1684, pp. 215-222.
Sobol, M.G. (1991). Validation Strategies for Multiple Regression Analysis: Using the Coefficient of Determination, Interfaces, 21(6), pp. 106-120.

延伸閱讀