This How-to report shares why and how TAZs were developed for the new Tennessee statewide model using a travelshed paradigm rather than traditional network-based boundaries. Using travelsheds to define TAZs results in a clearer relationship between the zones and the underlying roadway network with less ambiguity around the placement of loading points, makes zonal walkability in urban areas and area type in rural areas much clearer and naturally takes into account other boundaries and barriers to travel. The webinar will overview both the advantages and the challenges of this alternative approach as well as detailed information on the GIS intensive process to develop travelshed zones to support others who might be interested in adopting the approach for their region.
The GIS in Transportation team publishes quarterly newsletters to share information about significant geospatial transportation news, events, and appl...
Two main objectives of transportation planning are to simulate the currenttraffic volume and to forecast the future traffic volume on a transportation...
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United States Department of Transportation
[PDF-1013.56 KB]
