how accurate is your address data? kentucky geospatial audit for 9-1-1 matt wagoner, cfm gis manager...

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Matt Wagoner, CFM GIS Manager

James Morse, GIS Project Manager

Stantec Consulting Services, Inc.

2008 Ohio GIS Conference

September 10-12, 2008

Crowne Plaza North Hotel

Columbus, Ohio

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Background

• Process

• Results

• Observations of PSAP

• Recommendations

Stantec

• Formerly FMSM Engineers

• Multi-Discipline consulting services firm

• Founded in 1954

• 9,000+ Employees and 125 offices in North America

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• CMRS Board • Created under KRS 65.7623

• Part of the duties are “to audit the use and quality of the geospatial data supplied by all certified Public Safety Answering Points (PSAPs).

• Funding of PSAPs from the CMRS Board will be contingent on passing the audit.

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Geospatial Requirements

• Mapping Component

• Display the X, Y coordinates of incoming wireless 9-1-1 calls on digital base maps used by the PSAP

• Identify the incoming call on the map

• Identify the closest address to the X, Y; or

• Display the cellular tower position and the face/sector of the tower

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Geospatial Requirements

• Road centerline accuracy

• Minimum of 20 random points in each county and/or each PSAP area if it is a municipal PSAP

• The points shall– Plot on the same side of the

centerline segment

– Plot between the same intersecting streets

– Plot within 0.1 mile (528 feet) of each other

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Three areas of audit– Verify the mapping component functionality– Verify the geospatial accuracy of the base maps

using the software and data in the PSAP– Verify that the wireless 9-1-1 calls process

correctly.• Phase 0, Phase 1, or Phase 2• Plot correctly• Record data correctly• Transfer correctly

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Preparation for Audit– Generate Random Points– Generate Routes– Collect Field Data– Process the Field Data for PSAP visit– Collect the PSAP data on site– Process the results– Create the reports

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Point Generation– Hawth’s Tools

• 20 random points per municipal PSAP (5 in Kentucky)

• 20 random points per county– KSP PSAPs may cover up to 8 counties for wireless 9-1-1

• 3 random points for each incorporated area within each county

• Snap to street centerlines (KYTC)

• Randomly select a total of 20 per county

• Create Master point layer

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Route Generation– ArcGIS Network Analyst

• KYTC street centerline data as base data set

• Assign timing for each segment– Differentiate between US/State, City, County

• Assuming two (2) counties per day for collection

• Create routes

• Create the Master route layer

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Route Generation– “Day Trip” or extended tour– How close is the hotel to the ending point?– Is there a hotel near the ending point?– Some roads are not what they seem.

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Field Collection– Navigate to the points– Locate the nearest visible address– GPS the address and document the address– Proceed to the next point

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Data Management– Field Data Collection

• Trimble GeoXT

• Laptop as data collector

• ArcPad 7.1

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Data Management– Access Database

• Manage Field Data

• Manage Audit Data

• Generate Reports

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Observations • Some software packages do not meet the requirements of the CMRS Board– Geocode to centerline– Does not allow X, Y

entry of data– Does not automatically

display incoming wireless 9-1-1 calls to map

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Observations • Most common errors– Distance exceeded

– Left – Right ranges reversed

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Observations • Best Practices Found– Dedicated GIS personnel

– Formal data maintenance process

– Potential ranges for street segments vs. theoretical ranges

– Point addresses in addition to street centerline ranges

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Observations • Best Practices cont.– The more active that the

PSAP is in data creation, data maintenance, data QA/QC, the better they score.

– Know your data

– Understand how it is created/captured

– Understand how it is maintained

How Accurate is your Address Data?How Accurate is your Address Data?Kentucky Geospatial Audit for 9-1-1Kentucky Geospatial Audit for 9-1-1

• Recommendations • Again – Be involved with the data and the process

• Periodically perform a self audit to check accuracy of your data

Questions

• Matt Wagoner, GISPGIS ManagerStantecPh: (502) 212-5036Fx: (502) 212-5055matt.wagoner@stantec.comstantec.com

• James MorseGIS Project ManagerStantecPh: (502) 212-5044Fx: (502) 212-5055james.morse@stantec.comstantec.com