2011–2012 Maryland Route 200 Travel Survey

The 2011–2012 Maryland Route 200 Travel Survey collected in-vehicle global positioning system (GPS) data to investigate the use of Maryland Route 200, also known as the Intercounty Connector.

Data Collection Agency

The University of Maryland conducted the survey.


This travel survey was conducted between October 2011 and February 2012 in the Washington, D.C., and Baltimore, Maryland, area. Its goal was to increase understanding of the potential use Maryland Route 200, a tolled freeway connecting Maryland’s Montgomery County and Prince George’s County. 

Dedicated in-vehicle GPS devices were installed in 260 vehicles to record location information every 60 seconds if movement was detected. Survey subjects partook in an initial participation form as well as a recall survey, providing social demographic information and a one-day travel diary.

Survey Records

Survey records include 260 participants.

More Information

For more information about the survey, see these publications:

Short-Term Travel Behavior Prediction with GPS, Land Use, and Point of Interest Data

A Positive Model of Route Choice Behavior and Value of Time Calculation Using Longitudinal GPS Survey Data

Transportation Data

This data set contains 60-second in-vehicle GPS data from 260 participants and more than 20,000 trips. For details on available data and variable definitions, see the data dictionary.

Transportation data are available as zipped files. Download Winzip.

Full Survey Data

(excluding any GPS)


For the study's latitude and longitude data, learn how to access the spatial data.

How to Cite the Data

If you use TSDC data in a publication, please contact us and include a citation in your publication consistent with the following format:

"Transportation Secure Data Center." (2019). National Renewable Energy Laboratory. Accessed Jan. 1, 2019: www.nrel.gov/tsdc.