[TCUG] Re: SRL Traffic Systems 'PEDLIGHT'
- From: "David Overton" <dtoverton@xxxxxxxxxxxxxx>
- To: <tcug@xxxxxxxxxxxxx>
- Date: Wed, 20 Dec 2006 15:41:04 -0000
Be careful to check what the "type approved" equipment is approved for. It
is important to distinguish between "temporary" and "portable" signals.
They are defined in TA 84
temporary signal:
A traffic signal using the same type of signal
equipment as permanent signals but which is installed
for a limited period of time (e.g signals in barrels)
portable signal:
A traffic signal designed to be moved from place to
place.
Pedestrian signals may be included in "temporary" signals installations
because they are governed by the same regulations as permanent signals.
Pedestrian signals are not permitted at "portable" signal installations.
The control equipment may be approved as a portable traffic signal
controller but this does not include approval for use with pedestrian
aspects.
Andrew Hancock says:
The actual brochure for the product says that it is fully compliant with
TR 2503 "Performance Specification for Pedestrian Facilities at Temporary
Stand-alone Traffic Signals".
TR 2503 allows such things as radio linking and battery power but it still
refers to "temporary" not "portable signals". The signals are required to
comply with the regulations for permanent signals in physical appearance and
layout (TSRGD Regulation 33). There are also requirements not normally
found in portable signal equipment such as SA/SDE capability.
Claiming compliance with this specification is not the same as being Type
Approved. Anyone can check the Type Approval status of any equipment at
www.tssplansregistry.org. (You will need to register to get access). This
gives acces to the list of Type Approvals MCS 215. There are currently no
approvals issued against TR 2503.
David Overton
-----Original Message-----
From: tcug-bounce@xxxxxxxxxxxxx [mailto:tcug-bounce@xxxxxxxxxxxxx]On
Behalf Of R.J.Perry@xxxxxxxxxxxxxxx
Sent: Tuesday, December 19, 2006 3:28 PM
To: tcug@xxxxxxxxxxxxx
Subject: [TCUG] Re: SRL Traffic Systems 'PEDLIGHT'
And the controller is to what spec?
Regards and a Merry Christmas
Rob Perry
Senior Engineer, Traffic Control and Systems
Dorset Engineering Consultancy, Dorset County Council
Pullman Court, Station Approach, Dorchester DT1 1GA
Tel 01305 225357 Fax 01305 225301
"Andrew Hancock" <andrew.hancock@xxxxxxxxxxxxxxxxxxx>
Sent by: tcug-bounce@xxxxxxxxxxxxx
19/12/2006 13:40
Please respond to tcug
To: tcug@xxxxxxxxxxxxx
cc:
Subject: [TCUG] Re: SRL Traffic Systems 'PEDLIGHT'
This is something we get asked for a lot in Stoke by the public as they
see=
m to
think it is a legal requirement for us to provide a temporary crossing
faci=
lity
at roadworks where a permanent crossing has to be switched off so I did
some
research into it.
This is taken from LTN 1/98 "The Installation of Traffic Signals and
Associ=
ated
Equipment":
8.09 Care should be taken to safeguard pedestrian safety during
roadworks
within the area of the work site and particularly at or near pedestrian
=20 crossing facilities. Temporary pedestrian facilities may be
provid=
ed on
temporary signals as long as the area where pedestrians should cross
is
clearly marked.
This suggests that pedestrian facilities could be used at temporary
signals
when working near a pedestrian crossing which has to be switched off.
The actual brochure for the product says that it is fully compliant with
TR=
2503
"Performance Specification for Pedestrian Facilities at
Temporary Stand-alone Traffic Signals". (This=20can be found at the TSS
pla=
ns
registry website: http://www.tssplansregistry.org )
This specification states that the product should comply with TSRGD
Diagram
3000, Regulation 33, the signals shall comply with TSRGD Diagram 4002.1,
Regulation 47, and=20the push button shall comply with TSRGD Diagram 4003=
and
Regulation 47.
The unit uses peak elite signal heads and AGD push button units all of
which
are fully compliant with the TSRGD regulations.
With regards to approval for the product as a whole,=20this comes under
the
requirements for Self-Certification set out in TRG 0600 (http://www.
tssplansregistry.org) which allows companies to design, test and self
certi=
fy a
product to a specific Technical Requirements Specification. This
specificat=
ion
also gives regulations that it must be compliant with when using radio
sign=
als.
Again in the brochure this is something that the company states the
equipme=
nt
fully complies with and so I believe the product could legally be placed
on=
the
highway with no site specific authorisation being required.
The one thing that would be of interest is how drivers react to the
signals.
Drivers tend not to treat temporary signals with the same respect as
perman=
ent
ones and so when they see the other side stop they may drive through the
red
signal which would create a major safety issue.
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