Overview of NCHRP 3-99: Access Management Application Guidelines (AMAG)

1. Overview of NCHRP 3-99: Access Management Application Guidelines (AMAG) June 1, 2010 Marc Butorac, PE, PTOE

2. Agenda • Definition of AM • History • Latest AM Research • Current Industry Issue with AM Research • AMAG Role • Overview of AMAG • Access Management Perspectives

3. Access Management Definition • Access management is the systematic implementation and control of the locations, spacing, design, and operations of driveways, median openings, interchanges, roundabouts, and street connections to a roadway. - 2003 TRB Access Management Manual

4. History of Access Management • 1902 - New Jersey Speedway Legislation • 1914 - Westchester County, New York establishes “parkways” in urban areas. • 1937 - New York and Rhode Island established specific statutes to design and build “freeways” which included the full or partial acquisition of abutting access rights to ensure the long-term, higher performance of these highways

5. History of Access Management • 1944 - National System of Interstate and Defense Highways • 1955 - A Ten Year National Highway Program • 1960 - AASHO published “An Informational Guide For Preparing Private Driveway Regulations for Major Highways” • 1971 - NCHRP Report 121, Protection of Highway Utility

6. Modern Access Management • 1981 – Colorado adopts system-wide regulatory code of standards and procedures was adopted. • 1994 – TRB Establishes the Access Management Committee • 1996 - Transportation Research Circular # 456, “Driveway and Street Intersection Spacing” • 1999 - NCHRP Report 420, “Impacts of Access Management Techniques” • 2003 - 1st Edition of the Access Management Manual

7. Since 2003 – AM Research • Completed Research • NCHRP Report 546: Incorporating Safety into Long-Range Transportation Planning • NCHRP Report 524: Safety of U-turns at Unsignalized Median Openings • NCHRP Report 548: A Guidebook for Including Access Management in Transportation Planning • NCHRP Report 659: Geometric Design of Driveways • NCHRP Synthesis 304: Driveway Regulation Practices • NCHRP Synthesis 332: Access Location on Crossroads in the Vicinity of Interchanges • NCHRP Synthesis 337: Cooperative Agreements for Corridor Management • NCHRP Synthesis 351: Access Rights • NCHRP Synthesis 404: State of the Practice in Highway Access Management

8. Since 2003 – AM Research (cont.) • Ongoing Research • NCHRP Project 03-72: Lane Widths, Channelized Right-Turns and Right-Turn Deceleration Lanes in Urban and Suburban Areas • NCHRP Project 03-88: Guidelines for Ramp and Interchange Spacing • NCHRP Project 03-89: Design Guidance for Channelized Right-Turn Lanes • NCHRP Project 03-91: Left-Turn Accommodations at Unsignalized Intersections • NCHRP Project 03-98: Guidelines on the Use of Auxiliary Through Lanes at Signalized Intersections • NCHRP Project 03-99: Development and Application of Access Management Guidelines • NCHRP Project 15-43: 2nd Edition of the Access Management Manual

9. Current Industry Issue with AM Research • “raised medians reduce crashes by over 40 percent in urban areas and over 60 percent in rural areas” • “corridors with access control improvements experienced an 18 percent increase in property values after construction” • “installation of roundabouts reduced crashes between 18 and 29 percent and injury crashes between 63 and 88 percent”

10. Current Industry Issue with AM Research • “raised medians reduce crashes by over 40 percent in urban areas and over 60 percent in rural areas” • NCHRP Report 420 - Impacts of Access Management Techniques • “corridors with access control improvements experienced an 18 percent increase in property values after construction” • Raised Medians: Data Analysis on Additional Case Studies, Research Report 3904-3 • “installation of roundabouts reduced crashes between 18 and 29 percent and injury crashes between 63 and 88 percent” • Accident Reduction with Roundabouts, Paper presented at the 69th Annual ITE Meeting, Las Vegas, Nevada.

11. Role of AMAG in Access Management

12. Access Management Manual (AMM) • 2nd Edition AMM • Estimated Completion - June 2013 • Incorporates All AM Research Completed Since 1999 • www.AccessManagement.info • Managed by the TRB Access Management Committee

13. AMAG Project Background and Schedule • Notice to Proceed – June 2009 • Project Team • Oregon State University • Kittelson & Associates, Inc. • University of Arkansas • Huntington Traffic Solutions • Estimate Completion Date – June 2012

14. AMAG Organization Introduction • Access Management Concepts • Program Development and Implementation • Public Roadway Corridor Design • Site Design • Other Access Management Considerations • Public Involvement • Legal Considerations

15. Guideline Format • 28 Modules in initial guide • Module Format • Definition • Purpose • Guidance for Users: Needs and Issues to Consider • Application Issues • Vehicle Perspective • Other User Perspectives • Evaluation Techniques • Gaps in Knowledge • References • Interactive Elements • Case Studies

16. AMAG Web Platform The project is being designed to provide an online platform of Access Management Application Guidelines that: • Allows guidelines and underlying research to be distributed broadly • Maintains plug-and-play modules by topic that allows NCHRP and TRB to update it as additional research becomes available • Provides distribution vehicle to the user community for future research • Creates a resource site where users can access forms and spreadsheets • Allows Direct link to AM Committee website (www.accessmanagement.info) and being referenced by future versions of the Access Management Manual

17. Example Online Module

18. Ultimate Research Objective

19. Thank you Marc Butorac, PE, PTOE mbutorac@kittelson.com