A Low-Cost Mobile Proximity Warning System in Highway Work Zone

TRB's Highway Innovations Deserving Exploratory Analysis (IDEA) Program Final Report 187: A Low-Cost Mobile Proximity Warning System in Highway Work Zone explores advances in sensing and equipment control technology and their integrated combinations to assist construction personnel in avoiding accidents, especially hazardous proximity incidents. This report explores a Bluetooth proximity sensing system, developed with customized software and tested with other commercially available sensing devices, that could potentially detect and alert workers during hazardous proximity situations.