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A Summary of State DOT GIS Activities

This report summarizes the state Department of Transportation (DOT) GIS activities presented at the 2002 AASHTO GIS-T Symposium in Atlanta, GA. Information was gathered through email surveys, with 40 state DOTs responding. The report compares results with prior year surveys, covering topics such as GIS deployment, budgets, organization, staff size, software usage, core functions, staff activities, and current applications. Key trends include increased decentralization of GIS applications, growth in web-based GIS, and emphasis on asset management and map enhancements. This comprehensive overview provides insights into the evolving landscape of GIS in state DOTs.

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A Summary of State DOT GIS Activities

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  1. A Summary ofState DOT GIS Activities Presented at the 2002 AASHTO GIS-T Symposium Atlanta, GA

  2. Information Sources • E-mail survey of state DOT GIS managers • 40 State DOTs responded in 2002 • 2001 surveys used for non-responding states • Results compared with prior year surveys • New questions added: • DBMS software • Coverage of road database • Current major GIS-T projects

  3. Stage of Development

  4. GIS Deployment in the DOT

  5. Location of GIS Unit

  6. GIS Budgets

  7. GIS Organization: Summary • Nearly all DOTs have initiated GIS activity. • Over 90% have a recognized GIS unit • Recent trend to locate GIS core staff in Information Services. • Decentralization of GIS applications to end users throughout the agency • Significant number of enterprise GIS efforts • Increased budgets for GIS activities

  8. GIS Staff Size

  9. GIS Staff Classifications

  10. GIS End Users

  11. GIS Staff & Users: Summary • GIS core staff has stayed relatively constant in size • Rapid growth in GIS use throughout the DOT • Decentralization of GIS applications among end-users • Core staff activities focus on database maintenance and integration, support and training for end users.

  12. Operating Systems

  13. GIS Software in State DOTs

  14. Current GIS Software Mix

  15. DBMS Software

  16. GIS Software: Summary • Continued migration toward Windows operating system. • Some growth in DOTs using both OS • Use of multiple GIS software packages and vendors • Increased market penetration for most major software packages • Major growth in desktop end user, and web-based software

  17. Base Map Scales

  18. Road Network Coverage

  19. GIS Core Functions

  20. Core Functions Web application development (18) Attribute data integration (12) Base map enhancement (11) LRS development (6) Other Activities Videolog/Photolog integration (8) Migration to new DBMS (6) Data sharing and coordination (5) Migration to new GIS platform (5) Current GIS Staff Activities

  21. Road feature inventory (10) Highway asset management (7) Safety management / crash analysis (6) Highway project locations (6) Traffic incident monitoring (5) Road conditions / weather (5) State highway map / atlas (4) Road construction / detours (4) Truck permitting / routing (4) Environmental impact analysis (3) Current GIS Applications

  22. GIS Activities: Summary • Significant growth in web-based GIS • Continued emphasis on base map enhancement and attribute data • Broad range of applications identified: • Asset management and inventory • Visualization of features and events • Few complex spatial analysis applications

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