Improvement of Michigan Climatic Files in Pavement ME Design

The objectives of this study are the following: (1) check the quantity and quality of existing data for weather stations in Pavement Mechanistic-Empirical (ME) Design; (2) investigate the sensitivity of required pavement designs to climatic inputs; (3) determine sources of additional weather data that can be utilized in Pavement ME Design; (4) determine where additional weather stations would be beneficial; (5) run quality checks on additional weather data and weather stations and place into the correct format for Pavement ME Design; and (6) develop a procedure to choose weather data for virtual stations for gap areas where there is no actual weather station. Objectives 4 and 5 will be dependent on the outcome of objectives 3. If the quantity and quality of existing data for weather stations is sufficient for Michigan, it is not necessary to add weather stations. Otherwise, additional weather stations should be included for more reliable pavement designs. In addition, if weather data from other sources for these new stations can be utilized, it is beneficial to add these data into the climatic files. Thus, with more stations and weather data from other resources, the climate data for Michigan will be more complete and reliable. The use of climatic regions, where climates in given areas predict similar temperature and moisture profiles and result in insignificant performance differences, will be explored as an alternative to adding additional weather stations. One of the most important objectives of this project is to find a reliable approach to estimate climate data for gap areas where no actual weather station are located. Normally this is achieved through interpolation of weather data at nearby stations taking into account the longitude, latitude, and elevation. However, unlike most other states in the U.S., Michigan's climate is significantly affected by large bodies of water, which have significant influence on the ambient temperatures and precipitation. Thus, more factors should be considered in the interpolation of climate data. In addition, the irregular shoreline may make the water table effects more challenging to characterize, but this is outside the scope of this project since climatic inputs do not include ground water data.

    Language

    • English

    Project

    • Status: Active
    • Funding: $177159.00
    • Contract Numbers:

      2013-0067 Z3

      OR14-010

    • Sponsor Organizations:

      Michigan Department of Transportation

      Murray Van Wagoner Building
      425 West Ottawa, P.O. Box 30050
      Lansing, MI  United States  48909
    • Project Managers:

      Eacker, Michael

    • Performing Organizations:

      Michigan Technological University, Houghton

      1400 Townsend Drive
      Houghton, MI  United States  49931
    • Principal Investigators:

      You, Zhangping

    • Start Date: 20131001
    • Expected Completion Date: 0
    • Actual Completion Date: 20150430
    • Source Data: RiP Project 35708

    Subject/Index Terms

    Filing Info

    • Accession Number: 01537231
    • Record Type: Research project
    • Source Agency: Michigan Department of Transportation
    • Contract Numbers: 2013-0067 Z3, OR14-010
    • Files: RiP, STATEDOT
    • Created Date: Sep 4 2014 1:00AM