Travel Forecasting & Model Support

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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 for extracting trips relevant to the RVTPO region from the larger Virginia statewide AirSage data was developed, and EE/IEEI trips were validated against external counts...

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FTA, MPO planning studies, MPO LTP & TIP development, NEPA projects & construction phasing.


Model Development Support
Data Development and Analysis

Documentation /Training

Knowledge transfer with clear, concise, and tested documentation with illustrations