Instrumentation for Mechanistic Design Implementation

Abstract

Sponsoring Agency Code Supplementary Notes AbstractThe Oregon Department of Transportation (ODOT) Pavement Services Unit is in the process of implementing a new pavement design procedure being developed under the sponsorship of the American Association of State Highway and Transportation Officials. Fatigue cracking is a key distress mechanism that is predicted as part of the overall process using a theoretical model calibrated to empirical data. Tensile strain at the underside of the hot-mix asphalt pavement layers induced by truck axle loads is, in turn, a key input into the fatigue cracking model. In the new design procedure tensile strain is predicted utilizing a layered elastic analysis model.The principal objective of the project was to obtain key information to be used to assess the validity of the predicted tensile strain via layered elastic analysis. This involved collecting data from an existing test site along Interstate 5 just north of Albany, Oregon and installing and collecting data from instruments at a new test site along US 97 in Redmond, Oregon.This report documents the progress made toward achieving the principal objective of the study during the contract period

Data Fusion Model of Road Sensors based IoT Feature Clustering

“…However, because the road structure is different from other building structures, its distribution area is wide, and it is affected by vehicle load and environmental factors for a long time. These will lead to some shortcomings in the existing embedded monitoring system [7], such as the large size of the sensor, which destroys the original road structure after being buried. A large amount of on-site data collection is difficult to process in real time, causing communication jams and data redundancy problems.…”