Jessica D. Perkins GIS Programmer Analyst 2 Geospatial Transportation Information Section Program Planning & Administration Division of Highways West Virginia Department of Transportation May 9, 2012 West Virginia Department of Transportation WV Transportation Roadway Network: Integrating Routing Capabilities and Best Practices through Detailed Editing and an Updated Data Model

Outline  Background  Data Sources  Methods  Future Project Ideas  Questions & Discussion

-Roadway Inventory Log -Roadway Statistics -Public Certified Mileage - Geospatial Data Management -Geospatial Services Geospatial Transportation Information (GTI) Section Program Planning & Administration Division Highway Data Services Unit GIS Unit

GTI Background and Why?  Mission Statement To improve customer service to the citizens of West Virginia by supplying the latest transportation information.  Vision Statement Committed to managing an enterprise Geospatial Information System that will improve the productivity of the WVDOT, meet growing customer needs, and play a leading role in West Virginia’s geospatial community.  Data Availability programplanning/gti/

Data Sources WVDOT Routes (linear referencing system, LRS) Non-State Public Routes (NSPR) Ramps Roadway Inventory Log (RIL)

Data Sources WV State Addressing and Mapping Centerline Dataset – Division of Homeland Security and Emergency Management New county-level geometry and attribute edits Local roads Segmentation - split geometry at intersections (nodes) Addressing

Methods Automated Processes Extraction, transformation, and loading (ETL) in Data Interpretability Extension

Methods Geoprocessing steps for entire state dataset Midpoints of both line feature classes (WVDOT_Midpoints and SAM_Midpoints) Spatial join – WVDOT_Midpoints to SAM_Midpoints Join features from SAM_Lines to SAM_WVDOT_MidPoints by SAM_ID Field calculations to simplify attributes (all attributes for WVDOT and SAM) Identify features that were not intersected by SAM data (“Missing_WVDOTsource”). Introduces duplicate geometry - removed during manual cleanup Extend and Trim to connect intersections Delete features less than 1 meter and run Extend again

Methods Manual Processes by County  Phase 1 Use “Missing_WVDOTsource” to identify and clean-up errors Symbology used to visualize additional errors and duplicates Attribute edits using attribute transfer tool Remove duplicate geometry

Methods Manual Processes by County - Phase 1

Methods Manual Processes by County  Phase 2 Geometry edits Scan and overview clean-up Geoprocessing model to check attribute transfer Topology fixes in Data Reviewer Geometry edits to ramps Final overview clean-up

Methods Manual Processes by County - Phase 2

Methods Manual Processes by County - Phase 2 Complete

Methods Manual Processes by County  Phase 3 Stitching counties back together Deploy into updated data model ESRI Roads and Highways Solution integrated with Roadway Inventory Log for measures

Methods

Maintenance steps to update and strengthen process Maintaining SAM Street_ID through editing process Periodic updates from Counties through Division of Homeland Security and Emergency Management linked back by Street_ID Explore automated updates in future

Future Project Ideas  Improved Federal Highway Performance Monitoring System reporting  Enhanced connections to local routes on printed and web-based maps  Updated routing for analysis – desktop and web mapping Maintenance materials acquisition Coal Resource Transportation System (CRTS)

Future Project Ideas

Export Reproject Upload Update Store Download &Add Metadata Version - Edit GTI_EDITING TRANSPORTATION GIS DATA Commissioner Orders Paper Maps Field Data Consultant Reports Etc. TRANSPORTATION GIS DATA Commissioner Orders Paper Maps Field Data Consultant Reports Etc. GTI_PUB_WM GTI_PUB_UTM Upload REFERENCE GIS DATA WV GIS Tech Center WVGES USGS Esri Etc. REFERENCE GIS DATA WV GIS Tech Center WVGES USGS Esri Etc. IMAGERY Aerial Photos Shade Relief Hillshade Topo Etc. IMAGERY Aerial Photos Shade Relief Hillshade Topo Etc. Editing Publication Source Data Shapefiles Imagery GIS Services Shapefiles for Download Store Download &Add Metadata Version - Edit Update Geospatial Analysis Map Production Web Apps Reproject Export WVDOT Geospatial Data Repository Replicate

Reproject Upload Update GTI_EDITING GTI_PUB_WM GTI_PUB_UTM Upload Editing Publication Shapefiles Update Reproject Headquarters Replicate Districts GTI_PUB_UTM FGDB GTI_PUB_UTM FGDB Publication Replicate WVDOT Geospatial Data Repository Imagery

Questions and Discussion