¶ W-Beam
W-Beam a rolled steel sheet formed into a rough "W" shape. It is used to form longitudinal vehicle barriers on roads and highways around the world.
¶ Operation
To Be Completed
¶ Devices
W-Beam is found on the road in a variety of configurations:
- W-Beam (weak post)
- W-beam (strong post)
- Gregory Mini Spacer (GMS)
- Midwest Guardrail System (MGS)
- Culvert Mounted W-Beam Guardrail
- Ezy-Guard Heavy Duty
- Ezy-Guard Smart
- Modified W-beam (weak post)
- Non-Blocked BMS2-TL3 Single Steel Guardrail
- Nu-Guard 27
- Nu-Guard 31
- PennDOT W-Beam Guiderail over Underground Structure
- RamShield W-Beam Barrier System
- Retro-Rail Guardrail Retrofit
- Trinity Guardrail System (TGS)
- Trinity T-31 Guardrail System
- Rustic-appearance Metal Beam Guardrail
The sources of the specific device names are documented here.
¶ Condition Assesment
Several agencies have created detailed guardrail repair standards and assesment criteria, notably:
- FHWA - 2008-fhwa_wbeam_repair.pdf
- NCHRP - 2014_w-beam_damage_assesment_guide.pdf