The NG 9-1-1 GIS Data Project
Using GIS Data Layers to Benefit the Public Safety Agencies of Tennessee and Beyond
The Next Generation (NG) 9-1-1 GIS Data product is a comprehensive dataset that contains various Geographic Information System (GIS) data layers benefiting public safety agencies within state and local government. The core layers in this product are street centerlines, address points, and ESN boundaries, which form the backbone of the Next Generation 9-1-1 Call Routing System. STS-GIS Services is under contract with the Tennessee Emergency Communications Board (TECB) to help facilitate the access and distribution of the NG 9-1-1 GIS product. Working with local emergency communication districts and TrueNorth Geographic Technologies, STS-GIS Services receives locally updated geometry and tabular information (street addresses, names, etc.) as a single, consolidated and standardized statewide dataset. This dataset facilitates Tennessee’s participation in the National Address Database and is also used to support many other mapping and geocoding requirements at the state and federal level.
The NG 9-1-1 dataset is available for public consumption and available to download as a file geodatabase (.gdb) below. The following documents and links provide more information on the specific street centerline and addressing standards that STS-GIS Services and local districts use to maintain this statewide database, as well as access to the NG 9-1-1 data product.
- TECB Resources and GIS Data Standards for NG9-1-1
- NENA Standard for NG9-1-1 GIS Data Model
- TN NAD Document