Travel Time Reliability Reference Manual/Accessing the Data

Access to NPMRDS DataEdit

The data set is made available to States and Metropolitan Planning Organizations (MPOs) as a tool for performance measurement. Access can be obtained by emailing e-mail [1]

More information regarding access to the NPMRDS data can be found at

The data typically come out each month in the form of seven compressed .tar files. The files include:

  1. Documentation
  2. Canadian and Mexican border data
  3. Midwest
  4. Northeast
  5. South
  6. US
  7. West

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