Roadside Safety Webinar - ogra
Transcript of Roadside Safety Webinar - ogra
Roadside Safety Webinar
Aging Municipal Roadside Hardware
TOPIC: Common Aging and Deficient Devices on the Municipal Road Network
SPEAKER:Mark C. Ayton, P.Eng
Senior EngineerSafe Roads Engineering
Aging Municipal Roadside Hardware
• Status of Road Safety in Ontario• Deficiency vs Deviation from Standard• Deficiency - Examples • Deviation from Standard - Examples• Innovative Solutions• Roadside Safety Asset Condition Assessment
TOPICS:
Status of Roadside Safety in Ontario
Aging Municipal Roadside Hardware
• The MTO is a leading road authority with respect to implementation of new MASH hardware• The MTO has adopted MASH 2016 crash testing evaluation criteria
• W-Beam Guide Rail (M20, M30, Blockless W-Beam)• End Terminals (SoftStop, MSKT, Max Tension)• Cable Guide Rail (Safence)• Crash Cushions (Quad M10, Tau M, SMART, SLED)• Temporary Construction Barrier (Concrete and Steel)
• Ontario Provincial Standards for Roads and Public Works (OPS) PROV and MUNI specifications will align with respect to crash worthy product implementation
• New installations will have MASH options available to specifying agencies• Implementation of new MASH hardware is well underway Provincially and Municipally in Ontario• Solving the issue of when to replace / upgrade aging roadside safety hardware is the challenge
Deficiency vs Deviation from Standard
Aging Municipal Roadside Hardware
Deficiency:• A deficiency can be defined as ‘a roadside safety device is deficient if it no longer meets the standard
specification or manufacturers installation instructions to which it was originally installed.’• Deficiencies can be due to a variety of factors included hardware age and traffic impacts. The deficiency
can be categorized into three tiers of severity:
• High: A second impact results in unacceptable safety performance including barrier penetration and/or vehicle rollover.
• Medium: A second impact results in degraded but not unacceptable safety performance.• Low: A second impact results in no discernible difference in performance from an undamaged barrier
Source: NCHRP Report 656 - 2010
Deviation from Standard:• A deviation from standard can be defined as ‘a roadside safety device that was modified or installed not
according to the standard specification or manufacturers instructions.’
Common Deficiencies and DeviationsDeficiency: Deviation:
Low W-Beam / Cable Guide Rail Non-Standard Structure Connection
High W-Beam / Cable Guide Rail Barrier Installation on Steep Slopes
Loose Cable Guide Rail Terminal Installation without WideningLeaning W-Beam / Cable Guide Rail Modified Driveway Treatment / Private Entrance
Damaged to System Obstacles within System Working WidthLack of Repair / Adjustment Modification to Provincial Standards
Severe Rust Designers not adhering to Guidance in the MTO Roadside Design Manual (May ‘20) or TAC Geometric Design Guide (Chapter 7 – ‘17)
Aging Municipal Roadside Hardware
Deficient Hardware - Examples
Leaning W-Beam Loose Cable andLeaning Posts
Low W-Beam
Deficient End Terminal
Deficient Grading
Deficient Hardware – Examples (video)
27” Mounting Height 31” Mounting Height
Federal Highway Administration Federal Highway Administration
Deficient Hardware – Examples (video)
W-Beam Leaning 18 Degrees W-Beam Leaning 9 Degrees
ATA Hill & Smith AB - Sweden ATA Hill & Smith AB - Sweden
Deviation from Standards - Examples
Structure Connection – Omitted Posts
Obstacles within Working Width
Modified Leaving End Treatment
Modified Sign SupportBolt and Stub Height
Modified Bridge Parapet Modified Entrance Treatment
Deviation from Standards – Examples (video)
Unanchored Private Entrance Unanchored Private Entrance
Safe Roads Engineering Inc.Safe Roads Engineering Inc.
Deviation from Standards – Examples (video)
Cable System Next to 1.5H:1V Slope Structure Connection Limited Post Spacing
Federal Highway AdministrationMidwest Roadside Safety Facility
Innovative Solutions
Aging Municipal Roadside Hardware
New roadside safety hardware meeting MASH evaluation criteria is implemented by the MTO as it becomes available and is shared with the OPS Traffic Safety Committee for Consideration
Blockless W-Beam Systems: Innovative Product
ACP Sentry and Ingal Civil Ezy Guard
Attributes:• MASH TL-3 Crash Tested, included in May 2020 MTO Roadside Design Manual Update• Can be Installed directly in front of the Rounding Breakpoint of a 2H:1V Slope• Have a Narrow Profile of Approx. 200mm – Allowing for More Available Shoulder Space• Crash Tested in Median Configuration• Available with Motorcycle Protection Systems• Post Caps Available for Pedestrian Protection• Additional Pedestrian Railing Attachment for Installations in Proximity to Sidewalks and
Multi-Use Trails to protect both motorists and vulnerable users.
Narrow Profile Blockless W-Beam
Median Blockless W-Beam
Key Resources:
Aging Municipal Roadside Hardware
• MTO Roadside Design Manual - May 2020• TAC Geometric Design Guide – Chapter 7
• NCHRP Report 656 - 2010• OPS Standards
• Manufacturers Instructions and Working Drawings• Ontario Traffic Manuals (OTM)
Safe Roads Engineering Team is a valuable asset to Regions and Municipalities with respect to Roadside Safety Hardware
Vision / Knowledge
Design
Training
Maintenance
Inspection
DocumentationThank you for your time
Please do not hesitate to contact our group for more information regarding aging & new roadside
hardware, training programs, design considerations, and asset
condition assessments