[Tagging] RFC: more barrier types

[Richard Welty]

  On 9/20/10 5:35 PM, John Smith wrote:
> What about water filled plastic barriers?
>
> http://www.made-in-china.com/showroom/resourcesint/product-detailzqMJlfFDaQGv/China-Water-Filled-Plastic-Barrier.html
>
> They may not be permanent, but some stay in place for long periods of time.
>
these are a variant on the "Fitch Barrier":

http://en.wikipedia.org/wiki/Impact_attenuator#Fitch_Barrier

Fitch barriers are often really permanent, they get used at the points
where ramps separate to protect drivers who blow the decision
on which ramp to take.

richard