Maryland State Highway Administration, Office of Project Planning
BAI conducted a feasibility study that examined the potential widening/dualization of MD Route 272 between the end of the divided highway north of Lums Road into the Town of North East. The task examined two proposed highway needs inventory improvements: a divided highway north of US 40 and a multi-lane urban section south of US 40.
BAI prepared a design year “build” model in Synchro/SimTraffic to analyze traffic levels-of-service after the proposed improvements. Four unsignalized intersections were investigated for signal warrants in the design year and a total of eight signalized intersections were analyzed to determine the required lane configurations and auxiliary lane lengths in the design year to ensure adequate operation under the “build” condition.
Traffic analyses included accident analysis (showing that most of the roadway was experiencing higher-than-average accident rates). BAI used the configurations based on the traffic analyses to prepare plans for improvements to MD 272 showing roadway, intersection and bridge configurations, ADA-compliant pedestrian facilities, need for additional right-of-way, and potential significant socio/economic and environmental resource impacts.
Charles County Department of Planning and Growth Management
BAI is responsible for traffic engineering, environmental documentation, transportation engineering design, and regulatory agency coordination services for the roadway alignment of 1.1 miles of the Post Office Road Extension.
BAI was responsible for using the planned and proposed land uses throughout the project corridor, determining trip generations, and adding this new traffic to the existing “background” traffic volumes, and arriving at a “design year” (2030).
BAI was involved in extension coordination meetings with the County and the private landowner in the preliminary stages of land development planning surrounding the proposed extended roadway. The existing property was used as an aggregate/concrete plant, and a number of environmental issues needed to be researched. The presence of large “washing” and “dewatering” basins created wetlands that were governed by regulatory agencies (U.S. Army Corps of Engineers and Maryland Department of the Environment). Additionally, on-site use of heavy vehicles and the presence of an industrial park at the northern end of the project necessitated extensive hazardous materials research.
BAI conducted alignment studies that met the design criteria, was sensitive to environmental constraints, and the proposed development patterns. Ultimately, proposed improvements included an ADA-compliant pedestrian facility on one side of the road and an off-road hiker/biker path on the other. A unique feature of this project was the proposed “town center” in the northern portion of the corridor that would provide a safe and efficient focal and gathering point for multiple modes of travel.