5th International Symposium on Highway Geometric Design

Minseok Kim and Saed Rahwanji will make a presentation about MIDCAP and MUID on the 2015 ISHGD in Vancouver, Canada. The two reliable and user-friendly tools are developed by ATTAP for designing and evaluating intersection/interchange designs, including different alternative designs such as the diverging diamond interchange and continuous flow intersection.

TRB 2015

ATTAP members presented 6 paper in poster and lecture sessions at Transportation Research Board 94 Annual Meeting. The topics included dilemma zone, transit operation and signal design.

Dilemma zone

A dilemma zone protection system has been developed to improve the intersection safety by providing extra time to red-light running vehicles.

Baltimore evacuation system

When emergency events occur in urban regions, a reliable and efficient evacuation system is essential to minimize the impact caused by the events. ATTAP develops off-line and on-line evacuation systems for Baltimore.

Ocean City traffic management system

To mitigate the congestion in the Eastern Shore region during summer peak season, a monitoring and management system for traffic and incidents is developed. Travelers can also benefit from this system to better adjust route decisions and to avoid congestion.

MUID

In Maryland, the Continuous Flow Intersection, Diverging Diamond Interchange and Superstreet are commonly seen unconventional intersection designs. ATTAP is always working to advance the research and application of unconventional designs.

Intersection and Interchange Designs

Saed Rahwanji and Minseok Kim presented at the Alternative Intersections and Interchanges Symposium 2014 in Salt Lake City, Utah. The title was "State of the Practice, Case Studies and Analysis Tools on Unconventional Intersection & Interchange Designs in Maryland".

AIIS 2014 in Salt Lake City, Utah

Xianfeng Yang and Yao Cheng presented at the Alternative Intersections and Interchanges Symposium 2014 in Salt Lake City, Utah. Their presentations introduced the research on DDI and Superstreet as well as MUID software. This symposium explored a wide variety of newer intersection and interchange configurations.

Welcome

ATTAP is jointly initiated by the Office of Traffic and Safety at the Maryland State Highway Administration and the Center for Traffic Safety and Operations at the University of Maryland, College Park.

Safety Control & Operation Application Tools

Recent Presentations and Activities

	Getting Bikes and Transit to Work in Harmony--Presentation on World Bike Forum
	A Tour Guide to ATTAP
	Integrated Variable Speed Limit Control to Minimize Recurrent Highway Congestions
	An Integrated Signal Control System to Mitigate Queue Spillback on Freeway Off-ramps
	Introduction to Unconventional Intersection/Interchange Design in Maryland
	Eastern-Shore Regional Traffic and Incident Monitoring and Management System
	Introduction to Dilemma Zone Protection System
	An Integrated Multi-modal Emergency Evacuation System for the Baltimore Metropolitan area - New

Pages

Research Areas:

Traffic control and operations
Traffic simulation modeling
Travel time estimation and prediction system
Real-time traffic monitoring and emergency evacuation
Traffic safety analysis and evaluation
Intelligent transportation systems
Innovative highway geometric design and simulation

Program Managers:

Gang-Len Chang,

Professor

Dept. of Civil & Envi. Engineering

University of Maryland at College Park

Saed Rahwanji,

Assistant Division Chief
Office of Traffic and Safety

Maryland State Highway Administration

Minseok Kim,

ATTAP Team Leader

Office of Traffic and Safety

Maryland State Highway Administration

Steven Rochon,

Chief

Traffic Development and Support Division

Maryland State Highway Administration

Program Advisor:

Cedric Ward,

Director

Office of Traffic and Safety

Maryland State Highway Administration

Useful Links:

Eastern Shore Traffic Monitoring System
UMDTEST