Building GIS Master Data to Support Next-Gen 911

Karen G. Mitchell

GIS Specialist, NJ Office of GIS

9-1-1 is ChangingE-911 NextGen 911

Graphics from K Liljequist

Soon, Suddenly, Address Data Will REALLY Matter

• In order for the ECRF to work, you have to get your LVF in place!

• (Translation: in NG9-1-1, for calls to get routed to the right call center, you have to have good locations for every address.)

• And by the way, as you wade into 911, get ready for the acronym storm.

(Partial!) Glossary

• MSAG: Master Street Address Guide• ALI: Automatic Location Identification• LIS: Location Information Server• MPC: Mobile Position Center• SIF: Spatial Information Function• ECRF: Emergency Call Routing Function• LVF: Location Validation Function

What GIS Will Need to Provide

• Accurate address locations• Points preferable• Ranges on road centerline as fallback

State/County/Muni boundaries• Service boundaries: PSAP, Fire, Police,

EMS, etc.

NextGen in NJ: Big Picture

• OIT’s Office of Emergency Telecommunications Services coordinates both radio communications and 911

• NG911 implementation requires specialized knowledge• RFI issued a couple of years ago, still insufficient

understanding to craft plan• OETS plans to engage a consultant to lay out road map,

craft RFP for implementation• Initiative will definitely require support in legislature, but

any talk of consolidation gets highly political• (Translation: we GIS folks do have some time)

What To Start Doing Now

• Learn about how NG911 works• Start forging relationships with 911

personnel• Build first-cut data sets• Enlist 911 personnel in data maintenance

Address Ranges/Road Centerlines

• Enhanced DOT centerlines will be foundation

• Web app for maintenance coming soon• Authorized contributors at local level will

be important sources• Rapid refresh cycle to get changes into

users’ hands quickly

Address Points

• OGIS has draft statewide points based on parcel centroids

• Pilot project with Essex and Monmouth to explore distributed editing

• Will likely add point editing to road app• Ultimate goal is multiple points per address• Standards development at national level

Multiple Points Per Address

• Parcel centroid (low-hanging fruit)• Building centroid• Building entries• Driveway entry from road• Sub-addresses

• Outbuildings• Apartments, condos, office suites

National Efforts: Roads

• NSGIC proposed “Transportation for the Nation,” nationwide aggregation of locally-originated road centerlines

• USDOT adopted the idea, developed a strategic plan• MAP-21 Act signed July 2012, includes requirements,

funding mechanism for states to submit comprehensive centerline data

• NSGIC urging USDOT to include addresses, support for that from (FGDC) National Geospatial Advisory Council

• Data model not yet defined

National Efforts: Addresses

• Lots of people talking about addresses, don’t yet have a clear direction or momentum

• Census Bureau working actively to come up with strategy to do addresses outside of Title 13. Not simple.

• URISA/FGDC standard exists for attributes• NENA workgroup developing a standard for

spatial data for “structure points”• Very active work group in NSGIC

SummaryAs far as GIS data and maintenance processes to support NG911, we have a good base, a good direction, and a good idea of how to get there, but lots of details still to work out.

Karen Mitchell for

Andy Rowan, Director, NJ Office of GIS

andrew.rowan@oit.state.nj.us

609-462-6376