In Sefton, we place boards but leave the controller switched on. We have never yet suffered a mains spike on restoration which caused damage and all signals restore normally. Our systems inform us of the restoration and we can be on site very quickly. With regards to conflict, I have no problem with that, a red signal is enforceable - card or no card - and I would have no hesitation standing up in court to justify my actions. I don't actually believe in boards anyway. This can get too involved, when switching signals off for maintenance, do you place cards first then switch off, or vice versa? Of course you should place the cards first. Otherwise, an engineer will have to battle around an uncontrolled junction just so there is no apparent conflict. We really must allow drivers to have some common sense and we do not have to cater for every idiot on the road provided we take care and work logically and as safely as possible. and if the judge can't listen to reasoned argument... it's time to hang up our spurs. Peter Peter Jones Principal Traffic Systems Engineer Phone: +44 (0) 151 934 4254 Fax: +44 (0) 151 922 4514 Sefton MBC - UTC 7th Floor Balliol House Balliol Road Bootle L20 3NJ >>> "Bedding Terry" <Terry.Bedding@xxxxxxxxxxxxxxxxxxxxx> 12/09/06 15:03 >>> Just a quick power failure question to all of the local authorities out t= here. What do you when EDF have a power failure??? Do you leave the signals off= with no out of order boards or do you sign them all out or do you sign t= hem out and turn them off in the manual panel until power is restored the= n have them switched back on?? Regards Terry Bedding Assistant Engineer Traffic Signals Section The information in this email is confidential and may be legally privileg= ed. It is intended solely for the addressee. If you receive this email by= mistake please notify the sender and delete it immediately. Opinions exp= ressed are those of the individual and do not necessarily represent the o= pinion of Cambridgeshire County Council. All sent and received email from= Cambridgeshire County Council is automatically scanned for the presence = of computer viruses and security issues. ----------------------------------------------------------- A message from the TCUG mailing list. For information about the list visit //www.freelists.org/webpage/tcug This message is intended for named addressees only and may contain confidential, privileged or commercially sensitive information. If you are not a named addressee and this message has come to you in error you must not copy, distribute or take any action on its content. Please return the message to the sender by replying to it immediately and then delete it from your computer and destroy any copies of it. This message does not create or vary any contractual relationship between Sefton Metropolitan Borough Council and you. Internet e-mail is not a 100% secure communication medium and Sefton Metropolitan Borough Council does not accept responsibility for changes made to this message after it was sent. Whilst all reasonable care has been taken to ensure that this message is virus-free, it is the recipient's responsibility to carry out virus checks as appropriate and ensure that the onward transmission, opening or use of this message and any attachments will not adversely affect their systems or data. Sefton Metropolitan Borough Council does not accept any responsibility in this regard. ----------------------------------------------------------- A message from the TCUG mailing list. For information about the list visit //www.freelists.org/webpage/tcug