Transcript Slide 1

On-Going Research
2008 Golden, CO - HAWK
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On-Going Research
2009 Oakland Co, Michigan – Maple & Drake
North
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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.
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HAWK Conceptual View
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Oakland County, MI Study
2010 – Maple & Farmington
Rectangular Rapid
Flash Beacon (RRFB)
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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
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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
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Design Approach for Pedestrian
Safety & Accessibility
• Improve Gap Detection for Visually Impaired
Pedestrians
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ITS Solutions
Noise Producing Solutions to Provide Audible Cues
Minimize Crossing Distances
Shift Crossings away from Roundabout
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Fewer Conflict Points
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Practical Applications
• Separate Motorized & Non Motorized Movements
Pedestrian Tunnel (Bad Aibling, Germany)
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Practical Applications
Simplify Geometry at Towson Roundabout
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Practical Applications
Geometry at Maple & Drake Roundabout
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On-Going Research
2008 Swaunee, GA - HAWK
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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
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ITE Roundabout Taskforce
• ITE Roundabout Task Force:
http://www.ite.org/councils/Safety/roundabout.asp
• Secretary & Local Task Force Coordinator:
– Michael P. Mastaglio, PE
[email protected]
• Task Force Technical Advisor:
– Andrew T. Duerr, PE
[email protected]
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