May 7, 2015

Business Leaders Unite in Unprecedented Way for Final Purple Line Push

Business leaders from Montgomery and Prince George’s counties, supported by each County’s officials, gathered recently to press for construction of the Purple Line. 

The session, held at the Silver Spring Civic Building, was led by the Greater Washington Board of Trade President and CEO James Dinegar. A newly released economic impact study by Transportation Economics & Management Systems, Inc. (TEMS, Inc.) was presented as part of the message sent to the State about the vital importance of this project.

Check out media coverage of the event in The Post; Bethesda Now; The Sentinel; and The Gazette; and on TV – WJLA- abc7 and MyMCMedia. See The Post editorial.


  1. Don't forget this piece.

    "As a management engineer who spent 30 years with the Port Authority of New York & New Jersey (mainly in working to convert the “tubes” into “PATH”), then formed a consulting firm that serviced major transportation operators, I was distressed to calculate that the Purple Line (as defined by the MTA) could not possibly carry anything like 74,160 riders per day."

    "The MTA said the line would operate 139 trains per weekday. Each train would be made up of two 90-foot articulated trolleys with space to crush-load 140 passengers in each trolley. Those 139 train trips would have the capacity to carry fewer than 39,000 riders at peak loading points.

    The MTA said that the line’s track system would be designed to support up to 10 trains per hour and that this maximum number of trains would be scheduled in the two heaviest morning and afternoon peak hours."

    "To claim that every one of these 40 trains might carry the maximum load is not credible. To suggest that the 99 off-peak trains, spread between 5 a.m. and midnight, might average the same loads, is absurd."

  2. I wonder if the new economic impact study, when carefully read, will include assumptions, arbitrary parameters, statistical techniques, and so forth that favor the clients' interests rather than providing reasonably realistic assessment. At a minimum the study should discuss questionable methods and decisions used in the study. After all, the public interest is what is most important.

    In this controversy over the Purple Line and its adverse effect on the natural restoration and maintenance of the former railroad bed and right of way, the SCARCE resource is the Green Space.

    There are many options for getting employees from home to work, including siting new buildings and facilities where the most employees are; transportation options, including preference to buses, etc., over cars at stop lights, etc.; inducement to car pooling; telecommuting; road modifications, among others.

    There are precious few green spaces down country.


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