National Park Service (NPS) road networks have been experiencing increased congestion, especially in urban areas where NPS roadways are part of metropolitan traffic networks. An example is the George Washington Memorial Parkway (GWMP), serving the Washington D.C. metropolitan area by connecting state and inter-state highways. To mitigate the deterioration of mobility and safety in GWMP, an innovative traffic data detection system is needed to provide drivers with real-time travel speeds and travel time information. The system must be visually unobtrusive with minimal impact on viewsheds and disturbance of historical and cultural landscapes. IAI and its collaborator, Sabra, Wang and Associates will develop an innovative, low profile, low cost, low power, and light weight microwave radar with WiFi/Bluetooth sensors for vehicle detection and travel time monitoring. This stand-alone sensor system can be mounted on existing infrastructure, similar to traffic signs and light poles, while the communication module and battery can be embedded underground in a waterproof enclosure. The proposed system operates effectively in all weather, light, and road conditions with the capability to measure speed, occupancy, and volume of all vehicles. This low risk solution leverages proven COTS technologies and supports multiple lane detection and travel time estimation with WiFi/Bluetooth scanners mounted on existing infrastructure. The collected data will be transmitted to the backend NPS data processing computer in real time via cellular communication link. The data from this activity will be shared with the Virginia Department of Transportation (VDOT) and the Maryland State Highway Administration (MDSHA) for further analyses, adjustment of traffic management strategies, and will assist in interagency coordination/traffic management on NPS roadways.