November 20 Statewide Addressing & Road Centerline Projects Ashley Lesh, GIS Specialist Center for GIS Towson University Maryland Statewide GIS Coordination.
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November 20Statewide Addressing & Road Centerline Projects
Ashley Lesh, GIS SpecialistCenter for GIS
Towson University
Maryland Statewide GIS Coordination
SHA Project History
The Shared Centerline Program started in 2001 with the Maryland State Highway Administration (SHA) testing vertical integration of transportation data using the Howard County attributed centerline
SHA developed a methodology that would allow sharing the common centerline from local governments
SHA attaches a unique-ID onto each road segment allowing simplification of future data exchange as well as making the data model flexible
Project History
Maryland State Highway Administration (MD-SHA) and the Maryland Association of Counties (MACO) received a 2005 Special Achievement in GIS award for its outstanding use of geographic information system (GIS) technology from ESRI
Later in 2005, ESRI President Jack Dangermond met with SHA, sharing with the team that data interchange may be enhanced with the new capabilities being introduced into the ArcGIS data server environment at the 9.2 release
Project History
The Cooperative Centerline Program has evolved into the Federated, or Synchronized Street Centerline Project, via the current Pilot between SHA, Towson University and Anne Arundel, Baltimore, Harford, Howard and Saint Mary’s Counties
Maryland Statewide Addressing Initiative: Immediate Project Goals
To provide a unified, statewide road centerline that supports addressing needs;
To provide counties with a means to automatically share an unrefined version (i.e., not for federal reporting) of their street centerline data;
To augment existing efforts of Maryland State Highway Administration’s federal reporting by improving data access via a centralized distribution node;
To advance ESRI’s mission in demonstrating the data synchronization capabilities of ArcGIS Server 9.2;
To increase the efficiency of statewide highway incident reporting.
Long Range Goal: To establish a single, statewide road centerline that
supports addressing, linear referencing, routing, and cartography.
Maryland Statewide Addressing Initiative: Project Benefits
Foundation for Maryland’s Spatial Data Infrastructure Unified, statewide addressing layer that supports geocoding
Counties can geocode beyond their borders States can leverage locally rich data consistently
Elimination of the need for manual data exchange via CD Ability to establish a persistent replica that is updated automatically Ability to extract data for a specified geography through a geodata
service Accessible by other applications that require geocoding
Combining Web services through a Service Oriented Architecture (SOA) approach
Builds upon established SHA database schema
Maryland Statewide Addressing Initiative: Minimum Level of Effort Required By County
Agree to push production data to a CGIS server Install free software Schedule automatic “pushed” updates
Line feature class Roads
Line feature class Centerln
County 1 County 2 County 3
Line feature class Centerln
Master DB
Geodata Service
Geodata Service
Line feature class MD_Merged
Map Service
Map Service
Geocoding Service
Geocoding Service
Line feature class CountyExtract
ETL
Merge
Line feature class MD_Merged
Line feature class MD_Merged
Line feature class Streets
Line feature class Roads
Line feature class Centerln
Line feature class Streets
Maryland Statewide Addressing Initiative: Draft Pilot Architecture
Map Service
Map Service
Map Service
Map Service
Map Service
Map Service
Geodata Service
Geodata Service
Geodata Service
Geodata Service
Geodata Service
Geodata Service
Maryland Statewide Addressing Initiative: Project Timeline
July - December 2007: Pilot Project Baltimore County Howard County Frederick County Anne Arundel County Montgomery County St. Mary’s County
January 2007 - June 2008: Statewide Rollout July 2008 – ongoing: Convergence with SHA Centerline
Maryland Statewide Addressing Initiative: County Pilot Meeting: 9/13/07
Attendees Kenny Miller, Acting Maryland Geographic Information Officer Marshall Stevenson, Frederick County Apollo Teng, Montgomery County Doug Adams & Patrick Fangmeyer, Baltimore County David Gillum & Jeff Cox, Anne Arundel County Manesh Pillai, Howard County Mike Sheffer, SHA Matt Felton, TU-CGIS Jeff Roberts, TU-CGIS Ashley Lesh, TU-CGIS
Maryland Statewide Addressing Initiative: County Pilot Meeting: Outcomes
Future Concepts Creation of a core cartographic standard Future funding for issues related to the Statewide merged dataset Creation of a lessons learned/recommendations document
Creation of a Feedback Mechanism Help in reporting discrepancies while geocoding
Statewide Centerline Concerns
Overlapping ranges Edge-matching issues Need for surrounding State centerline data
Maryland Statewide Addressing Initiative: County Pilot Meeting: Outcomes
ETL Mapping Schema Each county provided feedback on schema mappings
Maryland Statewide Addressing Initiative: County Pilot Meeting: Outcomes
ETL Mapping Schema Each county provided feedback on schema mappings
Maryland Statewide Addressing Initiative: County Pilot Meeting: Outcomes
Model Builder ETL & Merge
•Each county centerline ran through the ETL•Produces an output shapefile
•Output shapefiles from the ETL are merged•Produces the Statewide merged dataset
Maryland Statewide Addressing Initiative: Updates
ArcGIS Server at CGIS Creation of Services is complete for the pilot counties
Map Service Geodata Service Geocoding Service
In-network and Off-network replica creation and synchronization successful
Maryland Statewide Addressing Initiative: Foundations
Foundation for Maryland’s StateStat and BayStat efforts
MDiMap Provide framework layers as a service
consistent base map
Ashley Lesh, GIS SpecialistCenter for GIS, Towson University
8000 York RoadTowson, MD 21252
(410) 704-2081alesh@towson.edu
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