Bridging the Gap - GIS Workflows to Unify Engineering and Operations Information for a Major Utility Provider

By Chris Nance

Transcript

1. GIS Workflows to Unify Engineering and Operations Information for a Major Utility Provider Chris J. Nance, PE
2. What are “gaps” ž  Incomplete Data ž  Department-centric Workflows ž  Cross-departmental access of relevant information
4. Understanding the Data ž  Physical Information —  General Maps —  GIS —  Record Drawings —  LiDAR ž  Condition Information —  Work Order History —  Knowledge of Operations Staff ž  Planned Improvements —  Previously Identified Future Assets
5. Existing Workflows ž  How Was the Information Created —  By who? —  For who? —  What additional information can other departments use? ž  Deliverables that are consistent —  Same Schema —  No Deletion of Data —  New Assets Delivered Separately
6. Existing Data Creation ž  GPS coordinates given to Operations GIS Technician ž  Technician Populates Fields/Digitizes Lines ž  Data QC by GIS administrators ž  Assets Pushed to Infor (Hansen) ž  Index Field written back to GIS
7. Existing Model Creation ž  GIS imported to model ž  Within Model —  Required information added —  Connectivity verified —  Simulation results calculated
8. Initial Gaps Asset Creation GIS Asset Management Engineering Analysis
9. Initial Gaps ž  Physical Data —  Missing pipe invert information ž  Connectivity —  Most pipes digitized off general maps, not project drawings ž  Asset Information —  Uses same indices, but not set up to share directly with GIS
11. Workflows for Completing Information ž  Physical Data —  Ortho-rectified General Maps for Manhole Inverts ◦  Relative Depth Calculation for QC —  Database Join to Populate Pipe Inverts ◦  Slope Calculation for QC ž  Connectivity —  Modeling Software —  Virtual Elements added
12. Future Workflows ž  Geometric Networks for GIS ž  Additional virtual assets —  Nodes —  Valves as Lines ž  Visualization of Work Order Information —  How much are assets costing to maintain? —  FOG problems in restaurant districts? ž  Work Order Information in Model —  Reduce effective diameters based on conditions
13. Consolidation of Data Sources ž  Increased Accuracy ž  Increased Versatility ž  Increased Adoption