Boom barriers
Boom barriers (also known as boom gates), can be conceived of as gates which instead of opening in the horizontal plane, operate by rising and falling. They are typically pivoted on one side and counter weighted to allow smooth, easy manual operation. They can also be motorised and are usually painted in conspicuous colours such as with alternating red and white bands. To further increase their visibility, a second arm can be suspended around 300-400mm below the main arm by metalstraps which gradually revert to the vertical position as the boom is raised.
[edit] Related articles on Designing Buildings
- Access control.
- Access to construction sites.
- Approved document Q.
- Barriers
- CCTV.
- Collective restraint systems.
- Commercial security systems.
- Cycling lane.
- Entry control.
- Fence.
- Hostile architecture.
- Palisade.
- Portcullis.
- Purchasing security gates and barriers.
- Ram raid.
- Scarp.
- Security and the built environment.
- Security glazing.
- Talus.
- Three key ingredients for designing inclusive walking and cycling infrastructure
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
The role of the client and decision making
CIOB response to built environment professions call for evidence.
Construction's sustainability reporting revolution
Tracking upfront embodied carbon with digital tools.
ECA welcomes procurement reforms
Public spending must back British jobs and skills.
Campaigning for Edinburgh: the Cockburn Association 1875-2049
The role of the civic voice in protecting character. Book review.
CIOB photography competition is open for entries.
ECA Edmundson apprentice of the year award
Finalists announced.
Major new study exposes serious knowledge gaps.
Generating energy from internal light as well as sunshine.
ECA welcomes plans to strengthen subcontractor quality control.
Combining mid-career qualifications with experience broadens career opportunities.
Why being a mentor can help your career.
Channel 4 broadcaster to host 125th anniversary ceremony.