Back in December I was part of delegation of West Exe cllrs who met with officers dealing with part-night street lighting for Exeter.
One of the topics I raised was the lack of information about problems and progress.
This update from Devon County Council showing the progress in the implementation of part-night lighting in Exeter indicates they have taken note of those comments.
The update will be formally presented at the Exeter HATOC meeting of 27 January and will be revised monthly.
EXETER PART-NIGHT LIGHTING WORKS
PROGRESS UPDATE – 16 December 2014
The implementation of part-night operation of street lights in Exeter began in September 2013 in Alphington and Cowick wards and involved the fitting of remote monitoring components into existing lanterns and replacement of existing lanterns that were not suitable. Similar work in Exwck and St Thomas wards began in October 2013.
Street lights in Alphington and Cowick started operating part-night in April 2014 and in Exwick and St Thomas in May 2014.
Each individual street light has a communication node fitted to it and up to 250 lighting units in an area are controlled by a Branch node located within the ward.
Communication between the nodes and branch, and between the branch and central control is via air-borne radio communication and can be accessed via the internet. So it is possible to allocate switching profiles to individual and groups of lights so that they can operate all-night or part-night.
The efficient operation of this remote monitoring system relies on good radio communications and the geographic location of branch controllers, so that command instructions can be issued as necessary. The lights themselves will operate during the day for a day or two when first commissioned and then operate dusk to dawn, or part-night as required. In some instances however, lights have been on during the day for longer than envisaged, either as a result of poor communications, or faulty components.
These issues have affected a small percentage of lights so far converted and the County Council has been working closely with the system manufacturer to resolve these problems. In the main, a re-mapping of nodes and their branch controllers have been sufficient to improve communications, but in some areas it has been necessary to install additional branch controllers.
The County Council will continue to work closely with the system manufacturer in implementing this new technology in Exeter and using it to its full potential.
Conversion work began in Duryard and Pennsylvania wards in June 2014 and lights started operating part-night in November 2014.
Conversion work began in St James ward in October 2014 and in St Davids ward in November, lights in both wards will remain operational all night.
The table below gives details of units converted to-date in each ward with the remaining provisional implementation programme shown in descending order.
|WARD||PROGRESS||PART-NIGHT OPERATION||TOTAL NUMBER OF LIGHTS CONVERTED||TOTAL NUMBER OF LIGHTS OPERATING PART-NIGHT|
|Alphington||99% Complete *||Yes||1214||792|
|Cowick||99% Complete *||Yes||441||331|
|St Thomas||99% Complete *||Yes||398||305|
|Exwick||99% Complete *||Yes||889||190|
|Duryard||99% Complete *||Yes||193||143|
|Pennsylvania||99% Complete *||Yes||634||462|
|St James||99% Complete *||No||330||0|
|St Davids||99% Complete *||No||218||0|
|Priory||Branch & new units||Not Yet||18||0|
|St Leonards||Branch & new units||Not Yet||6||0|
|Newtown||Branch node only||No||1||0|
|Polsloe||Branch & new units||Not Yet||4||0|
|Pinhoe||Branch & new units||Not Yet||20||0|
|Mincinglake||Branch node only||Not Yet||1||0|
|Heavitree||Branch & new units||Not Yet||21||0|
|Whipton Barton||Branch & new units||Not Yet||8||0|
|St Loyes||Branch & new units||Not Yet||3||0|
|Topsham||Branch & new units||Not Yet||31||0|
* Although conversion works are substantially complete, there are a small number of lanterns that are of modern architectural design, or classic heritage type, that are not suitable for immediate conversion with the remote monitoring system. These lanterns may also be expensive to replace, or still have quite a long working life remaining.
As technology develops and when the bulk of the works are complete in Exeter as a whole, the wards will be revisited to see if there are affordable solutions to address these remaining lanterns.
Branch nodes, which control over 200 lighting units, have been installed in all wards, more than one in some wards. The remote monitoring equipment has also been installed where lanterns have been replaced, or developments have been taking place. These wards will not operate part-night until conversion works are substantially complete.