Safety of the surface being used for Cycle Superhighways

Stephen Axbey made this Freedom of Information request to Transport for London

The request was successful.

From: Stephen Axbey

25 June 2010

Dear Transport for London,

Please supply findings of all safety testing that has been done on
the blue painted surface presently being laid down to construct
Cycle Superhighway CS7.

Particularly please supply findings on how slippery the surface is
for bicycles in wet weather.

Yours faithfully,

Stephen Axbey

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Transport for London

28 June 2010

Our Ref : 1006963076

Date : 28.06.2010

Mr S Axbey

[FOI #39456 email]

Dear Mr Axbey

Thank you for your request for information dated 25/06/2010 which was
received by Transport for London on 25/06/2010 concerning Cycle
Superhighway safety. This request will be dealt with under the terms of
the Freedom of Information Act 2000.

We aim to deal with your request promptly and provide you with a response
by 23/07/2010.

In the meantime, if you have any queries or would like to discuss your
request, please do not hesitate to contact me.

Once again, thank you for taking the time to contact us.

Yours sincerely

Patricia Mitchell

Head of Customer Services, Surface Transport

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Transport for London

15 July 2010


Attachment Your right to appeal Copyright.pdf
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Our Ref: 1006963076/SB

Date: 15.07.2010

Dear Mr Axbey

Thank you for your email received by TfL on 25 June 2010. You asked for
information about safety testing on the Barclays Superhighway CS7.

Your request has been considered under the requirements of the Freedom of
Information Act and I can confirm that TfL does hold the information you
require.

In 2009, a 3-month evaluation was carried out of possible surface
treatments for providing blue coloured materials on the TfL network. The
tests examined installation issues, colour fastness (including resistance
to UV light), skid resistance properties, rideability, and wear and tear.

At the conclusion of the tests in January 2010, the following materials
were judged to have the best combination of safety, quality and durability
properties, and were selected as suitable for use in different
circumstances on the Cycle Superhighways:

1) High Friction (Carriageway)

** Blue pigmented Methyl Methacrylate (MMA) binder with 3mm blue epoxy
coated bauxite chippings broadcast on the surface

** Un-coloured Bitumen Extended Epoxy Resin binder with 3mm blue epoxy
coated bauxite chippings broadcast on the surface

** Blue pigmented thermoplastic (for logos)

2) Standard Use (Carriageway)

** Blue (Methyl Methacrylate) MMA with 1 - 3mm encapsulated granite
chippings

3) Light Use (Footway)

** Blue epoxy modified acrylic street paint

Following installation, a series of 17 tests were carried out on Cycle
Superhighway route 7 to determine whether the skid resistance properties
of the carriageway materials were as expected from the off-carriageway
tests (measured as "polished stone value"). All tests were completed in
wet conditions, using an established testing method involving a pendulum
device. Of the 17 sites tested, 16 passed and one failed marginally at
Union Street due to poor application of the material by TfL's
subcontractors. The subcontractors have since been instructed to relay the
material in this area.

If this is not the information you are looking for, please contact Graham
Hurt, Correspondence Support Manager *** London Streets at
[1][email address] .

Please see the attached information sheet for details of your right to
appeal as well as information on copyright and what to do if you would
like to re-use any of the information we have disclosed.

Yours sincerely

Patricia Mitchell

Head of Customer Services

Transport for London
Surface Transport Customer Services

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