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Variable Speed Limit Dynamically adjusting the speed limits can help smooth the speed transition between the upstream free-flow and downstream congested traffic states, thereby preventing the sudden speed drop and the formation of an excessive queues. Presentation at The Hong Kong University Dr. Dilemma Zone Protection System ATTAP analyzed field data collected from one of the intersections with dilemma zone protection system DZPS. An off-line system and an online system are developed for different agencies I Traffic Analysis With field studies on I during morning and evening peak hours, our members identified most congested bottlenecks and figured out some potential strategies that will contribute improving traffic conditions. Presentations at TRB Annual Meeting At TRB Annual Meeting, five papers authored by ATTAP members are presented. An all-red extension system is developed to protect vehicles in such scenarios. UAID ATTAP, being one of leaders in unconventional intersection designs, developed a series of methods and tools to boost the application and improvement of such strategies. A Traffic and Incident Monitoring and Management System is developed to encounter this issue. Welcome ATTAP is jointly initiated by the Office of Traffic and Safety OOTS at the Maryland Department of Transportation State Highway Administration MDOT SHA and the Center for Traffic Safety and Operations at the University of Maryland, College Park UMCP.{/INSERTKEYS}{/PARAGRAPH} Traffic and Incident Management Evacuating the travelers in case of extreme climate conditions is a serious challenge. Real-time Control To mitigate the congestion and queue spillback near off-ramps, we developed a real-time control system which consists of three primary stages, including data collection, data analysis, and signal priority control. Xianfeng's Dissertation Xianfeng Yang finished and received his Ph. Lectern presentation on TRB Hyeonmi Kim made a lectern presentation about an arterial-based transit signal priority control system on TRB's 97th Annual Meeting, January , , in Washington, D. Woon's Dissertation Woon Kim finished and received her Ph. The system consists of a pre-timed bus-based progression model and a real-time TSP model. The analysis focused on short-term impacts on driving behaviors. The topics include traffic signal optimization, traffic safety analysis at an intersection, and incident duration estimation. {PARAGRAPH}{INSERTKEYS}Highlights Presentations at TRB Annual Meeting At TRB 99th Annual Meeting, several papers authored by ATTAP members are presented. Gang-Len Chang gave a distinguished lecture on the subject of contending with urban traffic congestion at The University of Hong Kong in December Phase-III contract offered Baltimore Evacuation System When emergency events occur in the urban area, people in the impact zone must be evacuated to the safe locations as soon as possible. The evaluation results also showed that the DZPS provide detection rate to red light running vehicle. The topics include traffic signal optimization and transit signal priority.