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Travel Forecasting & Model Support

ELIZABETH HARPER has worked in the transportation planning field since 1979, primarily in travel demand modeling. She has worked in many types of organizations – from MPOs to State DOTs to consulting firms – and has provided wide ranging experience in travel demand model application, development, and application of information management systems and GIS in travel modeling and planning. Ms. Harper is a proven project manager with strong communication skills and a commitment to quality products and services.

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DBE Certified: New York, New Jersey, Maryland, Virginia, North Carolina, Florida and Rhode Island
WBE Certified: New York State/PANYNJ

External Models – Roanoke, VA

Making use of the AirSage mobile phone data,  Ms. Harper assisted WSP/Parsons Brinckerhoff to develop and validate the internal-external and the through trip tables for Roanoke Valley Transportation Planning Organization's (RVTPO) new regional model.  A method…

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Model Calibration – Piedmont Triad, NC

EA Harper Consulting recalibrated the mode choice and destination choice model components of the Piedmont Triad Regional Model (PTRM) in Greensboro, NC.  Specific tasks required an analysis and merging (using SPSS) of two National Household…

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New Starts Forecasting – Purple Line

Ms. Harper managed the enhancements of the Metropolitan Washington Council of Governments (MWCOG) regional model, in support of Alternatives Analyses in two separate corridors in the Washington, D.C. region.  Corridors included the Corridor Cities Transitway (CCT)…

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New Starts Forecasting – Detroit, MI

The Southeast Regional Council of Governments (SEMCOG) travel demand model was updated to incorporate a new mode choice model and an air passenger model.  Ms. Harper (assisting Parsons Brinckerhoff) modified TransCAD scripts to allow for forecasting…

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Rhode Island Commuter Rail Component

EA Harper is working with VHB to add commuter rail and bus rapid transit components to the Rhode Island Statewide Model.  Work requires expansion of the auto vs. local bus mode choice model using TransCAD…

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Commuter Rail Forecasting in Jacksonville Florida

For the Jacksonville Transportation Authority in Florida, and as a sub-consultant to WSP/Parsons Brinckerhoff, EA Harper developed and tested eight future year scenarios for Jacksonville’s southeast commuter rail project. Work required network coding and modifications of the…

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Long Island Railroad Origin Destination Survey

Using SPSS, Ms. Harper is analyzing the data from the Metropolitan Transportation Authority's (New York) origin destination survey of passengers on the Long Island Railroad. Travel markets and geographic travel patterns are being analyzed (working with AECOM).

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Clean Pass Vehicle Operational Performance – Long Island Expressway

Ms. Harper assisted with the analysis of the impacts on congestion of operational changes to the Long Island Expressway HOV facility. Making use of a customized version of the current New York Best Practices model,…

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