Next Generation 9-1-1 GIS Resources

Next Generation 9-1-1 (NG9-1-1) is the next step in the evolution of the 9-1-1 system originally developed over 50 years ago. It migrates 9-1-1 from analog technology intended for wireline phones, to an all IP-based architecture capable of communicating with any network connected device. Of particular importance to local governments and GIS professionals that maintain GIS data for 9-1-1 is the transition from using MSAG and ALI tabular databases to GIS databases for 9-1-1 call location and routing. In NG9-1-1, GIS data are used in real-time within the 9-1-1 call flow for all location validation, call routing and mapping. As a result, it is essential that GIS data be complete, accurate, and up-to-date before being used within a NG9-1-1 system.

This webpage is intended to be clearinghouse for GIS-related NG9-1-1 information and resources for Montana.

GIS Data

The following GIS layers are required for NG9-1-1 location validation, call routing, and dispatch:

• Road centerlines
• Site/Structure Address Points
• PSAP boundaries
• Emergency services boundaries (separate layers for law, fire, and EMS)
• Provisioning boundaries

Below are some of the strongly recommended GIS layers for NG9-1-1, and may aid in call taking and dispatch:

• Street name alias table
• State boundary
• County boundaries
• Incorporated municipality boundaries
• Unincorporated community boundaries
• Neighborhood community boundaries

Standards

• NENA Standard for NG9-1-1 GIS Data Model
  • Template Esri file geodatabases:
    • NENA Standard
    • NENA Standard, plus optional Montana attributes
  • GIS Data the 9-1-1 Way: Understanding NENA's NG9-1-1 Data Model Standard - webinar recording | presentation slides (PDF)
• NENA Information Document for GIS Data Stewardship for Next Generation 9-1-1
• NENA Standards for the Provisioning and Maintenance of GIS data to ECRF and LVFs
• NENA Information Document for Location Validation Function Consistency
• NENA Next Generation 9-1-1 (NG9-1-1) United States Civic Location Data Exchange Format (CLDXF) Standard
• NENA Information Document for Development of Site/Structure Address Point GIS Data for 9-1-1
• NENA Detailed Functional and Interface Standards for the NENA i3 Solution
• NENA NG9-1-1 Guide for 9-1-1 Authorities
• NENA Master Glossary of 9-1-1 Terminology
• NENA Information Document for Synchronizing Geographic Information System Databases with MSAG & ALI
• NENA GIS Data Collection and Maintenance Standards (legacy/E9-1-1 standard)
• NENA Standard Data Formats For 9-1-1 Data Exchange & GIS Mapping (legacy/E9-1-1 standard)

Additional Resources

National Emergency Number Association (NENA)

Urban and Regional Information Systems Association (URISA) - NG9-1-1 Geospatial Fact Sheets

Intrado - Next Generation 9-1-1: The Essential Guides

State of Montana, Department of Justice, 9-1-1 Advisory Council

NEXT GENERATION 9-1-1: Montana’s Efforts to Move Forward. A REPORT TO THE 65TH LEGISLATURE

Montana Association of Geographic Information Professionals (MAGIP)

NextGen 9-1-1 Discussion, Spring Meeting 2015