[TCUG] Re: old controller replacements
- From: Bull Peter <Peter.Bull@xxxxxxxxxxxxxxxx>
- To: "'tcug@xxxxxxxxxxxxx'" <tcug@xxxxxxxxxxxxx>
- Date: Fri, 1 Oct 2004 11:53:13 +0100
I agree with Howard, if you have the luxury of funding to support a replacement
programme it needs to be based on a combination of age and reliability. I think
15 years is too soon for a reliable controller in good condition, but 25+ years
is pushing it even if the controller is reliable. Components age at different
rates and even the highest spec ones will expire eventually. At least 70s and
25s don't have EPROMs, which definitely have a limited life, albeit you can
probably reburn them if you can find an appropriate burner. If you are
reluctant to lose your old cases we have had some success grit blasting and
recoating old 25 cases to use as miscellaneous equipment cabinets.
Peter Bull
-----Original Message-----
From: Saffer Howard [mailto:Howard.Saffer@xxxxxxxxxxxxxxxx]
Sent: 01 October 2004 10:09
To: 'tcug@xxxxxxxxxxxxx'
Subject: [TCUG] Re: old controller replacements
Wouldn't controller replacement criteria based on age and current 'reliability'
be a better indicator for replacement policies?. We all know that some types of
older controller are very reliable - and unless there is some other requirement
for replacing the controller (e.g. changing the site geometry or upgrading
facilities on site - or spares availability) - why replace reliable equipment?
(This is assuming there is funding for a controller replacement programme
anyway! - especially as in many cases, if it is time to replace the controller,
it is often also time to replace the rest of the street equipment too!)
Howard Saffer
-----Original Message-----
From: Peter Jones [mailto:peter.jones@xxxxxxxxxxxxxxxxxxxxxxx]
Sent: 30 September 2004 12:59
To: tcug@xxxxxxxxxxxxx
Subject: [TCUG] Re: old controller replacements
I'm with you Graeme.
Nothing worse than having to replace a good old T200 that's worked
reliably for 15 years or more with something that may not begin with a
letter 'S'!
Peter
Peter Jones
Project Leader - Traffic Control Systems
Phone: +44 (0) 151 934 4254
Fax: +44 (0) 151 922 4514
Mobile: 07788 100 584
Peter.Jones (AT) technical.sefton.gov.uk
Sefton MBC - UTC
7th Floor
Balliol House
Balliol Road
Bootle
L20 3NJ
Please see our web pages on traffic control in Sefton:
http://www.sefton.gov.uk/content-2781
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