Pavement sensors used at accelerated pavement test facilities

Pavement instrumentation has recently become an important tool to monitor in-situ pavement material performance and quantitatively measure pavement system response to loading. Parameters that need to be measured in the field include, but are not limited to strains, stresses, deflections, moisture, and temperature. With different accelerated pavement testing projects being constructed, different sensors have become available to monitor the health of the pavement and its performance. However, the reliability, accuracy, and cost of these instruments/sensors vary significantly. This paper will provide insight to recent development of pavement sensors used on various transportation projects including accelerated pavement test facilities.