Page 864 - Week 03 - Wednesday, 29 March 2023

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MS BERRY: Well, I do not, and that is really a question for the contractors.

MR DAVIS: Minister, has the ACT government considered managing its own pools, like other local governments across the country?

MS BERRY: At the moment, we have put out an expression of interest to see about the availability of a new contractor to manage our public pools, and that is the process that we are in right now. Once we have finished that process and if they meet the needs of the government and our broader community to ensure that those pools continue to operate in the same way that they have for many years under the previous managers—that is the process that we are looking into right now.

Municipal services—streetlighting

MR BRADDOCK: My question is for the Minister for Transport and City Services. Minister, the lowering of the temperature of lighting in our suburbs can improve the amenity of the areas and perceptions of safety, whilst also reducing the impacts of lighting on private residents and fauna. Can you please provide detail as to whether the government recognises the benefit to the community of the use of lights of a warmer temperature?

MR STEEL: I thank Mr Braddock for his question. The ACT government understands the importance of lighting both for safety and for improving amenity for Canberrans, particularly at night.

I do not pretend to moonlight as a scientist, but I can inform the Assembly that light colour is described using the temperature unit measure kelvin, and the temperature measure represents the temperature of a body that emits a given colour of light. Hotter bodies emit higher energy light, which is the blue-violet end of the visible light spectrum, with lower temperature bodies, as Mr Braddock has alluded to, emitting lower energy, or red or orange light.

When we select light colour, it is based on a number of balancing factors. People generally tend to find lower temperature light more relaxing and comfortable than very high temperature light. Though red light is more comfortable, violet light provides more visibility and brightness and is therefore safer, particularly when it is used in the context of lighting roads and footpaths for pedestrians. Violet light is also more energy efficient than red or orange light, despite being at a lower temperature.

In collaboration with industry experts, TCCS has previously settled on 4000 kelvin for street and path lighting in the ACT, which is most similar to moonlight. Four thousand kelvin was assessed as the best balance in the competing objectives of colour rendering, safety, in terms of increased capacity to see what is intended to be lit, energy efficiency and visual comfort.

MR BRADDOCK: A number of lighting professionals have approached me saying that 4,000 is too harsh on the eye and recommending that lower temperature is required to suit humans and the urban environment. Do you have anything to say to that?


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