Mr. Masters inquired about the potential use of LEDs in WA traffic lights. Main Roads WA responded that they have already invested in low-voltage incandescent lamps, achieving significant energy savings, and are not planning a wholesale replacement to LEDs until their benefits are fully evaluated due to cost and marginal energy savings.

AnsweredQoN 374Legislative Assembly
Asked
12 June 2001
Member
Portfolio
Planning and Infrastructure

QuestionView source ↗

(b) if not, will Main Roads Western Australia evaluate the use of LEDs and prepare a plan for their use in Western Australia; (c) if yes, when will all traffic lights in Western Australia be converted to LED usage; and (d) if traffic lights are operated by any local authorities, is Main Roads Western Australia advising them of the benefits of LEDs over bulbs and encouraging their use?
(c) if yes, when will all traffic lights in Western Australia be converted to LED usage; and (d) if traffic lights are operated by any local authorities, is Main Roads Western Australia advising them of the benefits of LEDs over bulbs and encouraging their use?
(d) if traffic lights are operated by any local authorities, is Main Roads Western Australia advising them of the benefits of LEDs over bulbs and encouraging their use?
(b) Over the last five years, Main Roads has replaced or upgraded its traffic signal lanterns from units typically based on 240 volt 60 watt (standard range) or 100 watt (extended range) incandescent lamps (with a 1 to 2 year service life depending on the quality of the lamp purchased) to low voltage units based on 10.5 volt 20 watt (standard range) or 30 watt (extended range) krypton lamps (with an approximate 5 year service life). This move to low voltage incandescent lamps has realized a 62% reduction in electricity consumption. Accordingly, with this investment in the existing lamps, Main Roads does not plan for another wholesale replacement of its lamps to LED based units until LED benefits are fully evaluated. The LED units are approximately 3 times more expensive to purchase than low voltage incandescent lanterns. The LED units would only provide marginal additional savings in electricity consumption compared to the existing low voltage incandescent lamps. More work is required to accurately evaluate the life of the LED based lantern and its associated maintenance costs. Main Roads has contracted out the maintenance (including whole of life component replacement) of all traffic control signals for a fixed price. The replacement of all blown lamps is included in the contract price. Main Roads would incur extra cost to replace any of the existing low voltage incandescent lanterns with LED lanterns Notwithstanding this, there may be some cases where LED lanterns have operational advantages over incandescent lamps. Main Roads has discussed with the contractor responsible for maintaining the traffic control signals how a trial of LED lanterns could be implemented. No plans for a trial have been developed as yet. (c) Not applicable (d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.
The LED units are approximately 3 times more expensive to purchase than low voltage incandescent lanterns. The LED units would only provide marginal additional savings in electricity consumption compared to the existing low voltage incandescent lamps. More work is required to accurately evaluate the life of the LED based lantern and its associated maintenance costs. Main Roads has contracted out the maintenance (including whole of life component replacement) of all traffic control signals for a fixed price. The replacement of all blown lamps is included in the contract price. Main Roads would incur extra cost to replace any of the existing low voltage incandescent lanterns with LED lanterns Notwithstanding this, there may be some cases where LED lanterns have operational advantages over incandescent lamps. Main Roads has discussed with the contractor responsible for maintaining the traffic control signals how a trial of LED lanterns could be implemented. No plans for a trial have been developed as yet. (c) Not applicable (d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.
Main Roads has contracted out the maintenance (including whole of life component replacement) of all traffic control signals for a fixed price. The replacement of all blown lamps is included in the contract price. Main Roads would incur extra cost to replace any of the existing low voltage incandescent lanterns with LED lanterns Notwithstanding this, there may be some cases where LED lanterns have operational advantages over incandescent lamps. Main Roads has discussed with the contractor responsible for maintaining the traffic control signals how a trial of LED lanterns could be implemented. No plans for a trial have been developed as yet. (c) Not applicable (d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.
Notwithstanding this, there may be some cases where LED lanterns have operational advantages over incandescent lamps. Main Roads has discussed with the contractor responsible for maintaining the traffic control signals how a trial of LED lanterns could be implemented. No plans for a trial have been developed as yet. (c) Not applicable (d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.
(c) Not applicable (d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.
(d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.

AnswerView source ↗

Answered
31 July 2001
Responded by
Minister for Planning and Infrastructure
Response time
49 days
(a) No
(b) Over the last five years, Main Roads has replaced or upgraded its traffic signal lanterns from units typically based on 240 volt 60 watt (standard range) or 100 watt (extended range) incandescent lamps (with a 1 to 2 year service life depending on the quality of the lamp purchased) to low voltage units based on 10.5 volt 20 watt (standard range) or 30 watt (extended range) krypton lamps (with an approximate 5 year service life). This move to low voltage incandescent lamps has realized a 62% reduction in electricity consumption. Accordingly, with this investment in the existing lamps, Main Roads does not plan for another wholesale replacement of its lamps to LED based units until LED benefits are fully evaluated.
The LED units are approximately 3 times more expensive to purchase than low voltage incandescent lanterns. The LED units would only provide marginal additional savings in electricity consumption compared to the existing low voltage incandescent lamps. More work is required to accurately evaluate the life of the LED based lantern and its associated maintenance costs.
Main Roads has contracted out the maintenance (including whole of life component replacement) of all traffic control signals for a fixed price. The replacement of all blown lamps is included in the contract price. Main Roads would incur extra cost to replace any of the existing low voltage incandescent lanterns with LED lanterns
Notwithstanding this, there may be some cases where LED lanterns have operational advantages over incandescent lamps. Main Roads has discussed with the contractor responsible for maintaining the traffic control signals how a trial of LED lanterns could be implemented. No plans for a trial have been developed as yet.
(c) Not applicable
(d) Local Authorities do not operate traffic control signals, as operation of these assets is Main Roads' responsibility.

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