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 This is why a cooperative centerline was needed:

Original SHA Route System

Project History

New SHA Routes with County Centerline data

Project History

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

Questions?