----- Original Message -----

From: Tony Sharp

To: ihie_guidelines@yahoogroups.com

Sent: Tuesday, November 14, 2006 9:19 AM

Subject: [ihie_guidelines] Re: Innovative Safety Barrier Modification - Highways Agency Area4

Andrew,

I've uploaded documentation on `Bikeguard' onto the website.

Bikeguard is now approved for use on the whole of the HA network
and, therefore (?), should be considered `best practice' on Local
Authority networks.

You should also be aware that DMRB has be updated to reflect its use
in

VOLUME 2 HIGHWAY STRUCTURES: DESIGN (SUBSTRUCTURES AND SPECIAL
STRUCTURES) MATERIALS: SECTION 2 SPECIAL STRUCTURES PART 8
TD 19/06 REQUIREMENT FOR ROAD RESTRAINT SYSTEMS

This can be downloaded from

http://www.standardsforhighways.co.uk/dmrb/vol2/sect2/td1906_a.pdf

TD 19/06 includes the following section covering the fitment of
motorcycle protection to post and rail safety barriers (essentially
bikeguard)

3.41 At sites identified, e.g. through accident records, to be high
risk to powered two-wheel vehicles, such as tight external bends,
consideration must be given to the form of VRS chosen to minimise
the risk to this category of driver. Any special requirements must
be stated in the contract.

3.42 At such high risk sites, it is recommended to use an `add on'
motorcycle protection system to post and rail type safety barriers
to minimise the risk of injury to motorcyclists. The Design
Organisation must check with the safety barrier manufacturer that
any such proposed protection will not invalidate the tests on the
safety barrier.
Such `add on' products must be approved by the Overseeing
Organisation and be compatible with the safety barrier to which it
is being attached as these products are not included within BS EN
1317.

Regards

Tony Sharp