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Traffic Engineering

The life cycle of a traffic engineering project involves several critical phases. It starts with the planning phase, where data is collected and analyzed to identify traffic issues. Next, the design phase focuses on developing solutions, including traffic flow models and signal timings. After approval, the project moves into the implementation phase, where construction and adjustments are made, followed by ongoing evaluation to assess effectiveness of the implemented solutions.

Traffic Studies, Montgomery County, MD

BEI collected manual turning movement counts to determine the traffic and pedestrian volumes of each possible turning and crossing movement at an intersection. The time periods were six hours (7-9am, 11am-1pm, 4-6pm); twelve hours (7am-7pm); thirteen hours (6am-7pm); and any other durations as assigned by the County, for various locations in Montgomery County. 

 

The data was collected using electronic JAMAR boards and tabulated in 15-minute intervals for the AM, mid-day and PM peak periods as they apply. Field personnel record all field observations at a particular intersection including (but not limited to): pedestrian activity, accidents, construction, improperly timed signals, non-functioning pedestrian push buttons, queues, amongst many other concerns. In addition, data was also collected using video turning movement counts

 

The raw data from above was used to conduct a  capacity analysis at every signalized and unsignalized intersection using the CLV methodology and LOS was determined for each peak hour. The CLV was calculated based on the Montgomery County and MDSHA lane use factors. The CLV analysis included the number of lanes, lane use assignments, peak hour volumes and signal phasing, amongst other factors.

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Client: Montgomery County Department of Transportation

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White Flint, Bethesda, MD

BEI prepared a Traffic Engineering Study to investigate the presence of

"Cut-through" traffic in the vicinity of White Flint. This area, while including residential neighborhoods, features a variety of businesses and shopping centers. Major roadways traverse the area, including Montrose Rd/ Montrose Parkway/ Randolph Rd, Old Georgetown Rd and Rockville Pike.

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BEI collected tarffic data in four regions in White Flint area in January, June and October of 2012. This data was used to access peak hour traffic and traffic entering and exiting out of the designated regions. Thsi data was analyzed to determine if cut-through is apparent within the residential neighbourhhods.

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Client: Montgomery County Department of Transportation

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