Building upon the successes of an SBIR Phase I project, Traffax Inc. in cooperation with Purdue University proposes in Phase II a large scale deployment of Bluetooth Traffic Monitoring (BTM) technology to exercise real-time capability and continued exploration of BTM arterial specific applications. Whereas the first phase concentrated on resolving several key issues and demonstrating utility in small isolated projects, the second phase will showcase a broad-based integrated system deployment that provides real-time traffic monitoring across multiple jurisdicitions, road-types, and possibly multiple modes. Unlike phae I in which most small scale demonstrations recorded data for later analysis, phase II will target real-time systems and monitoring applications. The hardware development goals include designing systems capable of operating autonomously without mains power or a wired network. Such an approach will test claims of cost effective ubiquitous travel time measurements anywhere, as well as discover and resolve any integration issues associated with a large-scale deployment. The focus area is a tri-state corridor spanning Maryland, the District of Columbia, and Northern Virginia. Phase II will also build upon the Phase I partnership with Purdue University by performing a series of arterial management case studies and producing an accompanying guidebook.