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Highway Functional Classification

Highway Functional Classification. PEAR Workshop September 2009 Spencer Stevens, Planning Office Joe Hausman, Office of Highway Information Ed Christopher, Resource Center. Highway Functional Classification. What? Why? How? Relationship to Federal-Aid Relationship to Design

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Highway Functional Classification

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  1. Highway FunctionalClassification PEAR Workshop September 2009 Spencer Stevens, Planning Office Joe Hausman, Office of Highway Information Ed Christopher, Resource Center

  2. Highway FunctionalClassification • What? • Why? • How? • Relationship to Federal-Aid • Relationship to Design • October 2008 HPMS memo

  3. What is the function of a road? • Provides mobility (arterials) • Provides access (locals) • Provides both (collectors)

  4. Relationship to service

  5. Functional Classification?

  6. Functional Classification?

  7. Functional Classification?

  8. Why classify roads? • There are approximately 4,000,000 miles of roads in the U.S. • Some are more “important” than others

  9. Why classify roads? • Helps determine which level of government has responsibility • Influences design • Affects how they are funded • Impacts Federal-Aid

  10. Rural Illustration

  11. Rural Guides

  12. Highway Functional Classes (Rural Miles) • Principal arterials 132,451 (4%) • Minor arterials 137,875 (4%) • Major collectors 434,090 (14%) • Minor collectors 272,047 (9%) • Local 2,096,837 (68%) • Total 3,071,331

  13. Urban Illustration

  14. Urban Guides

  15. Highway FunctionalClasses (Urban miles) • Principal arterials 76,033 (9%) • Minor arterials 90,475 (10%) • Collectors 89,310 (10%) • Local 628,369 (71%) • Total 884,187

  16. Federal-Aid • National Highway System • Principal arterials • Surface Transportation Program • Arterials • Urban collectors • Rural major collectors

  17. How? • Group population centers and major travel generators • Identify neighboring centers • Connect the largest directly • Connect the next group to the major centers

  18. How? • Considerations: • Arterials integrated network • Spacing • Changes at urban boundaries • Trip length • Diminishing returns

  19. Urban Boundaries • Urban clusters • Census block population density • Secondary criteria • Urban Places • Political boundaries • Adjusted boundaries

  20. Design Considerations • AASHTO’s Policy on Geometric Design of Highways and Streets 2001 (Green book) • Arterials – promote mobility and restrict access • Locals – promote access and limit mobility

  21. Design Features • Speed • Levels of service • Alignment • Width • Clearances • Grades

  22. Urban Features • Parking • Lighting • Curb & Gutter • Sidewalks • Utilities

  23. Access Control • Full control • Freeway • Partial control • Medians • Grade separation • Signal timing • Limit driveways and entrances

  24. Access Control Methods • Land use ordinances • Geometric design • Medians • Spacing median openings • Frontage roads • Direct vs. indirect access • Single vs. multiple access

  25. HPMS Reassessment • October 14, 2008 memo • Recommends revisions to highway functional classification guidebook • Downplays the Urban/Rural distinction • New HPMS classification schema used for 2010 data reporting • Does NOT change any Highway Functional Classification Guidance or practice

  26. Summary • What is the function of roads? • Why classify the roads? • Example of impact on design • Which roads are eligible for Federal-Aid?

  27. Highway Functional Classification Concepts, Criteria and Procedures • It is just a guide • Varies in practice by state • Functional Class boundaries are not rigid • Some states develop supplemental criteria • www.fhwa.dot.gov/planning/fctoc.htm

  28. Main Street State University Campus Loop I-95

  29. Census Urban Boundary Industrial Blvd Industrial Park

  30. The village of Mesa Mesa View Road Red Rock Heights Route 36

  31. Resource Page http://www.edthefed.com/fclass/

  32. Yepper – We Can Assist You? SelectHere http://www.dot.state.pa.us/Internet/Bureaus/pdPlanRes.nsf/PlanningAndResearchHomePage?OpenFrameset

  33. Yunz Please Refer To…

  34. Then Submit per…

  35. FHWA Appreciates the Process!

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