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Creating Value …
… Delivering Solutions
New Jersey Roadway Centerline Enhancement
MAGTUG September 21, 2011
Agenda
Description of Project
Methodology
Challenges
Status
Wrap-up
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Project Description
Intended to replace TeleAtlas
NJDOT Roadway Network as starting point
Include sources from Census, County, Local, MOD-IV
Broad user base
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Project Description Add private roads
Data Source PriorityGEOMETRY
NJDOTCounty
LocalTIGER
Digitize from Project Aerials
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Project Description
Data Model Adapted from NJDOT data
model
Enhancements to meet broader needs
Production Model
Reporting Model NJOIT users and
applications
NJDOT users and applications
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Project Description
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Project Description
Look-up tables
Multiple LRSs
Change Table
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Project Description
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Project Description
Reporting Tables NJ_CARTO
NJ_GEOCODING
NJ_ROADWAY_NETWORK
Extract Transform and Load Process Summary level
segmentation
SLD attributes/ event tables
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Project Description
Limitations Inconsistency
between source datasets
Updates to NJDOT data Ramps
New alignments
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Project Description
Project Team Michael Baker Jr., Inc.
Civil Solutions, Inc.
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Methodology
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Methodology
Data Analysis Gather data
Planarize
Format table structure
Project as State Plane
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Methodology Standardization Production
Geodatabase
MXD
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Methodology
Production Tiles (PTiles)
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Methodology Pre-processing: Stage 1 Flag segments and drop points
Production codes (PCODEs):
QC I Utilize PPoints
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COPY DOTEDIT
ADDNEW RESACC
EXTD ADDUNIMP
TRIM OMIT
CIRCU OTHER
MODGEOM MANUALCON
ADDBRDG RAMPEDIT
Methodology
New Segments 2007 NJ Orthophotography
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Methodology
New Segments 2010 NJ Orthophotography
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MethodologyNew Segments Business
Rules Emergency
access
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Methodology
New Segments Business
Rules Connectivity
Visibility
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Methodology
Pre-processing: Stage 2 Copy segments
SRI/ Route Creation
Connectivity and Topology
Attribute Population
Verified field
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Methodology
Attribute population Jurisdiction type Public
– Segments currently in NJDOT
– Single family dwellings
Private– Schools
– Shopping centers
– Business Complexes
– Parks
Unknown– Subject to inventory
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MethodologyQC II
Pre-conflation Evaluate table structure
Remove Geometry Identifier
Direction detection
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Methodology Automated conflation Query omitted segments
based on production code
Query ramps
One automated pass per dataset
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Methodology
Manual Processing Directionality and mis-conflation
Manual Conflation
Parcel Conflation
Postal codes
Psuedo-node merging
M and MP values
Elevations
QC III
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Methodology
Post-processing Load to staging area in SDE
Automated validation
Load to delivery versions Metadata
Final review prior to delivery
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Challenges
Source geometry Paper Streets
Alignment Issues
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Challenges
TIGER addresses
TIGER zip codes Gaps
Alphanumeric data
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Challenges Road names Variation
between sources
Variation in abbreviations
Spelling mistakes
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Challenges
Road name prioritization
Parsing routines Concatenate and standardize source names
Parse into prefix, name, suffix, etc.
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Highway Names Local Names
NJDOT TIGER
TIGER NJDOT
County County
Local Local
MOD-IV MOD-IV
Challenges
Conflation Issues Unexpected
results
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Challenges
M-values for self-intersecting segments
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Status
Pilot Area
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Municipality County Challenge
Bridgewater Somerset Apartment and business complexes,circle
Carney’s Point
Salem NJTA toll
Kearny Hudson Port
New Hanover
Burlington Fort Dix
Stafford Ocean Sand roads
Status Tracking iDV tracking website
Total new mileage added to date
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County Additional MileageAtlantic 323.17Bergen 185.96Burlington (pilot only) 77.05Camden 152.01Cape May 172Cumberland 155.39Essex 151.16Gloucester 140.48Hudson 55.86Hunterdon * 0Mercer 283.32Middlesex * 0Monmouth (70%) 342.41Morris (80%) 367.74Ocean (partial) 498.05Passaic 237.31Salem 60.54Somerset (pilot only) 48.16Sussex * 0Union 59.97Warren * 0Total 3310.58
Status
Percent complete to date
Data Maintenance Reconcile
process
Quarterly release
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Production Stage % of Stage Complete
Weighted % Complete
Setup 100% 3%Stage 1 94% 9%QC1 82% 1%Stage 2 61% 18%QC2 41% 2%Pre-conflation 24% 1%Conflation 18% 1%Manual Processing 13% 4%
QC3 2% 0%Post-Processing 2% 0%QC4 2% 0%Delivery 2% 0%Total Percent Complete
37%
Questions and Wrap-up
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