Maryland Street CenterlineSynchronization Project

Background

Maryland SHA is actively involved in a Statewide Cooperative Centerline project to vertically integrate road centerlines between counties and the state. The Shared Centerline Program began in 2001 and has resulted in methodology that allows local governments to provide centerline and address information, while SHA provides roadway distance measurements, linear referencing, quality control, and data validation. Although neither entity actually edits the other’s data, the project allows better exchange of information about the roadway system, gives each entity a common model when referring to the system, and provides opportunities for more efficient collection of information about roadway assets.

Pilot Phase

SHA just completed successfully working with Anne Arundel County, ESRI, and TU to demonstrate the capability to synchronize databases with the latest ArcSDE 9.2 technology across distributed networks. Counties maintain their own data but publish changes to a statewide database that is kept up-to-date. This effort represents a significant contribution to the MEGIN vision of cross-jurisdictional collaboration, and results in additional data for the Maryland Emergency Geographic Information Network (MEGIN).

Benefit

• Real Time Centerline Data availability for the state
• Enhanced 911/Homeland Security/MEGIN service
• Consistent product with less coordination
• Cost saving on overheads to maintain update cycle
• Quality inspected

Funding

ESRI will provide each county that participates with SHA in piloting, testing and becoming an operation node in the Maryland street centerline synchronization project, can request a no-cost license of the ArcGIS 9.2 software bundle to support the project. Included with this license would be one year of software maintenance covering standard technical support and software upgrades. (Software maintenance after the first year would be the responsibility of the organization receiving the software). Requests for licenses to collaborate in the project will be fulfilled until June 30, 2007.