In 2000, the Centre for Pavement and Transportation Technology (CPATT) commissioned a two lane test track in southern Ontario that is subjected to a climate with seasonal freeze/thaw events. In 2002, sensors and a remote access data acquisition system were installed at the test track to measure and record asphaltic concrete pavement environmental and traffic load associated responses. In 2006, a series of controlled loading tests were performed to investigate pavement dynamic response due to a variety of wheel and tire pressure loading conditions. The paper describes the CPATT test site, the field instrumentation program, and the state-of-the-art remote access data acquisition systems. It also describes the 2006 field test program and presents typical sensor data for asphalt strain gauges and total pressure cells. Field data is then used to determine wheel wander impacts on sensor readings and temperature effect on measured asphalt longitudinal strains. Testing found that 16 cm of wheel wander can reduce asphalt longitudinal strain by 36 percent, and that daily temperature fluctuations can result in a 200 percent increase in asphalt longitudinal strain.
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