Cleansed Data from Transportation Studies and Surveys

NLR's Transportation Secure Data Center (TSDC) cleanses data from transportation studies and surveys to ensure quality and the anonymity of participants, allowing the data to be made public.

Learn more about the TSDC's data processing.

U.S. Data

Household Travel Data

Cars on a multi-lane road.

Find documentation and data from transit passenger surveys and studies.

Transit Passenger Data

A woman looking at a cell phone.

Find documentation and data from transit passenger surveys and studies.

International Data

Nairobi, Kenya, Urban Under-Exploration Transportation Study

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Last Updated Dec. 6, 2025