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On-Going Research

This document outlines ongoing research from 2008 to 2010 focused on improving pedestrian safety through the implementation of HAWK and RRFB systems in Oakland County, Michigan. The research is divided into three phases: pre-installation, post-installation, and long-term assessments. Key design approaches address reducing conflict points, simplifying geometries, and enhancing accessibility for visually impaired pedestrians. This research also emphasizes creating a comprehensive resource for roundabout safety improvements and promoting awareness of innovative pedestrian designs.

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On-Going Research

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  1. On-Going Research 2008 Golden, CO - HAWK

  2. On-Going Research 2009 Oakland Co, Michigan – Maple & Drake North

  3. Oakland County, MI Study • ADA Study phases • Ph I – pre-installation of the HAWK or RRFB • Ph II – shortly after HAWK or RRFB installation (Maple/Drake August 2009, Maple/Farmington, Feb 2010) • Ph III – 3-6 months after installation.

  4. HAWK Conceptual View

  5. Oakland County, MI Study 2010 – Maple & Farmington RectangularRapid FlashBeacon (RRFB)

  6. Design Approach for Pedestrian Safety & Accessibility • Eliminate/ Reduce Conflict Points • Grade Separation • Simplify Geometry • Eliminate or reduce entry/exit lanes • Reorient pedestrian networks away from Roundabout

  7. Design Approach for Pedestrian Safety & Accessibility • Reducing/Minimizing Pedestrian Exposure • Simplify Roundabout Geometry • Geometric Improvements • Bulb outs • Raised cross walks • Ped Signalization • ITS Solutions • Police Enforcement

  8. Design Approach for Pedestrian Safety & Accessibility • Improve Gap Detection for Visually Impaired Pedestrians • ITS Solutions • Noise Producing Solutions to Provide Audible Cues • Minimize Crossing Distances • Shift Crossings away from Roundabout

  9. Fewer Conflict Points

  10. Practical Applications • Separate Motorized & Non Motorized Movements • Pedestrian Tunnel (Bad Aibling, Germany)

  11. Practical Applications Simplify Geometry at Towson Roundabout

  12. Practical Applications • Geometry at Maple & Drake Roundabout

  13. On-Going Research 2008 Swaunee, GA - HAWK

  14. ITE Roundabout Taskforce Major updates to FHWA Guide, MUTCD, AASHTO Greenbook, and HCM all due within next year. Goal - “One-Stop Shop” for Roundabout Info Wiki site, similar to Ped/Bike site, to be operational by early 2010. Toolbox

  15. ITE Roundabout Taskforce • ITE Roundabout Task Force: http://www.ite.org/councils/Safety/roundabout.asp • Secretary & Local Task Force Coordinator: • Michael P. Mastaglio, PE mmastaglio@rkk.com • Task Force Technical Advisor: • Andrew T. Duerr, PE aduerr@rkk.com

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