“…To date, several real-time location technologies have been tested, the most promising of these being Radio Frequency Identification Devices (RFID) [9,10], Global Positioning Systems (GPS), Wireless Local Area Networks (WLAN), Ultra-Wide Band (UWB) and Indoor GPS, and hybrid systems comprising combinations of two or more technologies [11,12] to cover a wide range of accuracy values and yard areas [13,14]. Although all these technologies can be used to monitor the movement of construction resources, they need to satisfy the following criteria in construction work [15]:…”