The Transportation Tomorrow Survey (TTS) data is accessible through the Internet Data Retrieval System (iDRS). This page provides geographic data files for the spatial aggregations used in iDRS. The most detailed level of spatial aggregation available through iDRS is the Traffic Zone. A Traffic Zone is a polygon that typically aligns with the centerline of roads or follows natural geographic boundaries. The survey area is divided into traffic zones based on the planning needs of the participating agencies.
Note:
1. Regional boundaries can be established by aggregating the local municipality boundaries within each region. Each region contains its own local municipalities, and each of these municipalities includes various traffic zones.
2. While traffic zones fit neatly within regional boundaries, they sometimes extend beyond the local municipality boundaries. The TTS Data Guide, which can be found in the TTS Reports section, provides a detailed list of the traffic zones associated with each regional and local municipality.
3. Additionally, Traffic Zone Boundary Reports, which can be found in the Miscellaneous Reports section, are available for the 1996, 2001, and 2006 zone systems. These reports include a comprehensive numbering of traffic zones corresponding to the relevant road networks.
| Boundary | TTS Survey Data | |||||||
| 2022 | 2016 | 2011 | 2006 | 2001 | 1996 | 1991 | 1986 | |
| Planning Districts |  | | | | | | | |
| 2022 Zones | | |||||||
| 2006 Zones | | | | | ||||
| 2001 Zones | | | | | | | |
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| 1996 Zones | | | ||||||
| 1991 Zones | | | |
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| 1989 Zones | | |
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| TARMS Zones | | |
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*If you need any boundary files in MapInfo format, please reach out to DMG for assistance.
