Abstract：A method was developed to provide prompt management and evaluation of supervisory staff behavior on dam construction sites. The system uses smart phones embedded with global positioning system (GPS) module for real-time location tracking. The supervisor location information is collected and uploaded to the server by the smart phones. The server processes the data and displays the locations and paths of each supervisor on a web page for real-time monitoring. Three indicators, the field work time, effective work time and effective working range, were developed to identify the specific work context and measure the supervisor workloads. The method was verified by simulated field tests that show that the method can accurately determine the real-time positions of the supervisors and can identify their work context. Thus, three indicators reflect the actual situation. The real-time tracking system is a useful tool for managing and evaluating field supervisor behavior in large hydraulic projects.
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