GIS tools for transmission line routing
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This document discusses how GIS and web-based tools can streamline transmission line routing. It provides background on resource planning versus routing and initiatives like WECC and WGA. The emergence of HVDC is also noted. Opportunities for routing include paralleling existing infrastructure and utilizing undeveloped corridors. Constraints include sensitive species habitat, populated areas, and cultural/water resources. A hypothetical GIS website is demonstrated for a Wyoming project, featuring constraint layers, measurement tools, and an address search. Benefits of private GIS websites include ease of use, early issue identification, and facilitating public involvement and agency consultation.
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GIS tools for transmission line routing
- 1. GIS and Web Based Tools to Streamline Transmission Routing By Daniel Belin, AICP Ecology & Environment, Inc.
- 2. Presentation Topics • Background • Corridor Routing Opportunities and Challenges • Benefits of web based GIS Tools for Transmission Line Routing
- 3. Background • Resource Planning vs. Transmission Routing • WECC / WGA initiatives • HVDC emergence
- 4. Background • Resource Planning – Reliability modeling (congestion) – Corridor separation – Load growth scenarios – time horizon • Transmission Routing – Natural resource planning (integrity) – Corridor co-location – Impact scenarios – time horizon
- 5. WECC / WGA • WECC RTEP - SPSG • WGA WREZ • WGA WC DSS – Montana CAPS
- 6. HVDC Emergence How do we get power from here to there? Source: Wyoming Infrastructure Authority, 2008
- 8. Routing Criteria • Utilize 20 (+) Corridor Evaluation Criteria • Criteria Include: – Biological Resources - Socio Economic Conditions – Cultural Resources - Water Resources – Geology and Soils - Engineering Considerations – Land Use Table 1: Corridor Evaluation Criteria Criterion Unit of Measure Source Date GEOLOGY AND SOIL RESOURCES Karst areas Square Miles USGS 1984 Seismic Hazards Square Miles National Atlas of the United States/USGS 2002 Slopes greater than 15% Square Miles USGS DEM 2009 Landslide Incidence and Susceptibility Square Miles National Atlas of the United States/USGS 2001 Earthquakes Number National Atlas of the United States/USGS 2004 Quaternary Faults Square Miles National Atlas of the United States/USGS 2005
- 9. Routing Opportunities Parallel Existing Infrastructure / ROW • Transmission Line ROW • Pipelines • Interstate Highways and State Routes • Railroads • Previously disturbed corridors Non-Parallel Routing • Utilize Undeveloped Corridors, as needed
- 11. Transmission Line Constraints Constraints Include: • T&E Species Habitat • Densely Populated Areas • NWRs and SWMAs • Cultural Resources • Topography & Soils • Large Waterbodies
- 12. National Wildlife Refuges and State Wildlife Management Areas
- 13. GIS Website Demonstration • Hypothetical project in WY • Private website linked to GIS data layers and variety of base maps • Constraint layers visible on base mapping • Buffer and measurement functions facilitate route analysis • Website has an Address search function with applications for: – Routing and Public Involvement
- 14. GIS Website Case Study (Continued) Corridor Routing Tool
- 15. Private GIS Website Benefits • Ease of Operation (Web browser Interface) • Identifies critical issues early • Provides immediate analysis through buffering and measurement • Helps facilitate public involvement
- 16. Conclusion • New paradigm in transmission planning in the US • Many more factors and stakeholders • Web based GIS sites expedite routing study tasks – Provide critical information early – Keep project team coordinated – Identify stakeholders quicker – Consult with agencies sooner – Eliminate costly alternatives proactively
- 17. Thank you! Questions? Contact: Daniel Belin, AICP Ecology &Environment 1501 Lee Highway, Suite 306 Arlington, VA. 22209 (703) 522-6065 dbelin@ene.com