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System Performance Evaluation
MASH
NCHRP 350
NCHRP 230
AASHTO for Bridge Railings
AASHTO Roadside Design Guide
Working Width and Zone of Intrusion
In-Service Performance Evaluations
Barrier Warrants and Barrier Lengths
TL-1
TL-2
TL-3
TL-4
TL-5
TL-6

System Type
Approach Guardrail Transitions (AGTs)
Box Beam Guardrails
Bridge Rails
Cable Barriers
Geometric and Traversable Features
Luminaire Pole Systems
Luminaires, Poles, and Utility Features
Permanent Concrete Barriers
Portable Barriers
Road Closure Gates
Shield culverts
Sign Supports and Work-Zone Traffic Control Devices
Stiffness and Height Transitions
Thrie Beam Guardrails
Treatments for Intersecting Roadways
Truck and Trailer Mounted Attenuators (TMAs)
W-beam Guardrails

Applications
Accelerated Bridge Construction (ABC)
Bridge Decks
Bullnose Systems
Channelizers, Delineators, and Object Markers
Combination, Bicycle, and Pedestrian Rails
Concrete Bridge Rails
End Treatment,Terminals and Anchorages
End Treatments, Terminals, and Anchorages
Flared Installations
Hybrid Bridge Rails
Long-Span Guardrails
Median Barriers
Metal Bridge Rails
Midwest Guardrail Systems (MGS)
Motorcycle Systems
Non-Blocked Guardrails
Precast Barriers
Systems Adjacent to Slope
Systems to Shield Culverts
Timber Bridge Rails
Weak Post Guardrails

System Features
Aesthetic Features
Barrier Attachments & Noise Barriers
Blockouts
Breakaway or Slip-Base Guardrail Posts
Breakaway or Slip-Base Guardrail Posts
Bridge Decks
Channelizers, Delineators, and Object Markers
Curbs
Fasteners
Frangible Couplers and Transformers
Galvanization and Surface Treatments
Material Specifications/Alternatives
Timber Posts
Transition and Attachment Structures