Abstract
![]() Philadelphia Water Department: From Paper to the Geometric Network Track: State and Local Government Author(s): Roxanne Gregorio, Ed Roworth, Rami Raad, Larry Szarek The City of Philadelphia Water Department (PWD) is completing one of the largest data conversion projects in the industry. The original project included development of three citywide GIS coverages for more than 6,600 miles of water, sewer, and high pressure fire infrastructure. To support long term maintenance of the data by PWD staff, the team has recently migrated coverages containing 1.75 million features to a multi-user enterprise geodatabase. Geometric network object models were created for each of the five systems to maintain the highest possible data integrity. These models, in combination with SQL Server and ArcSDE, provide PWD with efficient data access, multi-user editing, versioning, conflict resolution, and integration with legacy systems. This paper will provide an overview of the UML design methods used during the migration process, lessons learned, and the present and future benefits associated with the GIS. Roxanne Gregorio Philadelphia Water Department 1101 Market STreet Philadelphia , PA 19107 US Phone: 215 685 6333 E-mail: roxanne.gregorio@phila.gov Ed Roworth CH2MHILL 1700 Market STreets Suite 1600 phila , PA 19103 US Phone: 2155634220 E-mail: edwin.roworth@ch2m.com Rami Raad CH2MHILL 1700 Market STreet Philadelphia , PA 19103 US Phone: 215 563 4220 E-mail: rami.raad@ch2m.com Larry Szarek Philadelphia Water Department GIS Unit Aramark Tower 1101 Market Street 4th floor Philadelphia , PA 19147 US Phone: 215 685 4995 E-mail: larry.szarek@phila.gov |