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Understanding Noise Pollution in Melbourne and How to Minimise It

Understanding Noise Pollution in Melbourne

Understanding Noise Pollution in Melbourne and How to Minimise It

Posted on in Blog

Living in the one of the ‘most liveable cities’ in the world has got many advantages. However, a vibrant place like Melbourne comes with its challenges too, and noise complaints are among the most common. From the honking of cars on Lygon Street to the noise of construction equipment in Docklands, unwanted sound is an increasing concern for residents and visitors. But what exactly is noise pollution, and how can we address it in urban city living?

What is Noise Pollution?

Noise pollution refers to disruptive or harmful sounds that interfere with normal living conditions and health. It includes sounds from transportation, construction and even everyday activities like neighbourhood parties, backyard footy practices etc. that create excessive noise levels. The major sources of noise pollution include:

  • Traffic Noise: High vehicle density and road networks such as Punt Road and the Tullamarine Freeway.
  • Public Transport: Trains, trams and buses that add to the city’s noise.
  • Construction Activities: Ongoing urban development in areas like Southbank and Collingwood, creating noise during early mornings and late evenings.
  • Recreational Noise: Nightlife spots around the CBD and St Kilda contribute significantly to elevated noise levels.

The Impact of Noise Pollution on Health and Well-Being

Noise pollution in Melbourne doesn’t just interrupt peace and quiet—it has tangible effects on human health. Prolonged exposure can cause stress, anxiety and even contribute to cardiovascular issues. For children, noise can hinder learning and development, while adults may experience sleep disruptions and decreased productivity.

Wildlife in Melbourne’s green spaces, like the Royal Botanic Gardens and Yarra Bend Park, are also impacted by noise pollution. Animals rely on natural sounds for communication and survival, and excessive noise disrupts these crucial behaviours, potentially driving species away from urban areas.

How to Minimise Noise Pollution in Melbourne

Reducing noise pollution involves both personal actions and community initiatives. Individuals can limit noise by lowering volumes and using soundproofing solutions. On a broader scale, urban planning, regulations, and technology play key roles in addressing excessive noise. Collaboration is essential for creating a quieter environment. Below are some effective strategies to help curb this urban issue:

1. Urban Planning and Zoning

 Effective urban planning can significantly reduce noise levels. Establishing noise barriers along major highways and using zoning laws to separate industrial and residential areas can help. Melbourne City Council can designate more “quiet zones” in residential neighbourhoods and place stricter limits on construction hours.

2. Adopting Soundproofing Solutions like Magnetite

For homeowners and businesses looking to reduce indoor noise levels through windows and doors, companies like Magnetite offers innovative solutions. Magnetite’s retrofit double glazing system is designed to reduce noise through windows by up to 70%, creating a more peaceful indoor environment. The system works by adding a secondary panel of optical-grade acrylic to existing windows, allowing a maximum air cavity between the systems to optimise the noise reduction. This windows soundproofing solution is ideal for existing homes or offices near busy roads, construction sites or recreational areas.

Unlike traditional double-glazing windows, Magnetite’s window glazing solution does not require replacing existing windows, making it a cost-effective option for Melbourne’s heritage property where maintaining the aesthetic is crucial. By installing Magnetite’s soundproofing windows system, residents can enjoy a quieter living space, free from the constant hum of traffic or outdoor disturbances.

3 Quieter Public Transport and Infrastructure

Melbourne’s extensive public transport network contributes significantly to urban noise. Transitioning to electric buses and trams can reduce both noise and air pollution. Introducing quieter rail tracks and noise barriers at busy interchanges like Southern Cross Station can also help lighten the impact on nearby residents.

4. Promoting Awareness and Behavioural Changes

Raising awareness about the effects of noise pollution can empower residents to take action. Lowering the volume of music, limiting outdoor machinery use, and opting for quiet alternatives in personal and professional settings can make a collective difference.

5. Enhancing Green Spaces

Green spaces, such as the Royal Park and Merri Creek Reserve, act as natural sound buffers. Investing in more green spaces, tree planting initiatives, and creating community gardens not only beautifies the city but also absorbs and reduces urban noise.

Technological and Policy Interventions 

Melbourne’s city planners and policymakers play a crucial role in tackling noise pollution. Setting construction noise limits during peak hours, tightening noise regulations, and promoting quieter technologies are key initiatives. Noise monitoring devices can pinpoint the noisiest spots, making it easier to implement targeted solutions.

While Melbourne’s energy and liveliness make it unique, excessive noise can affect residents’ quality of life. By integrating windows soundproofing solutions like Magnetite’s retrofit double glazing, improving urban planning, and spreading awareness, we can create a quieter, more liveable city for everyone.

If you’d like to know about our double glazed window solutions, speak to the Magnetite Melbourne team.

  1. Conduction
    Heat moving through an object (i.e. heat will travel through an aluminium, or steel frame more easily than through a timber or PVC frame).
  2. Radiant heat
    Heat from the direct sun. It can pass through space until reflected or absorbed.
  3. Convection
    Heat flow resulting from air movement e.g. either 'natural' convection - warm air rises, or 'forced' convection - a breeze by a window, both can result in a draught by a window.
  4. Infiltration
    Air leaks around the frame, around the window sash and through the gaps in the movable window parts.

When evaluating your options to improve the thermal performance of your windows, the following double glazing key performance criteria should be considered:

  • U-Value (Uw) represents heat transfer through a window, irrespective of direct sunlight. The lower a window’s U-Value, the better the insulation performance.
  • Solar Heat Gain Coefficient (SHGC) measures the solar energy that passes through glazing. The lower the SHGC, the less solar heat is transmitted through a window.
  • Air Infiltration or leakage measures the rate at which air passes through gaps in window joins and seals. The lower the air infiltration, the better a window’s energy performance.

The Window Energy Rating Scheme (WERS) Thermal Performance

Aluminium Frame Windows

Glazing Type Cooling Stars Heating Stars Cool% Heat% Uw SHGC
Single glazed 3mm clear glass* half blue star red starhalf red star 7.4 0.77
Single glazed 3mm clear glass &
4.5mm Magnetite		 blue starblue starhalf blue star red starred starred starred starred starhalf red star 35% 59% 2.9 0.67

Timber Frame Windows

Glazing Type Cooling Stars Heating Stars Cool% Heat% Uw SHGC
Single glazed 3mm clear glass* blue starhalf blue star red starred starred starhalf red star 20% 28% 5.5 0.69
Single glazed 3mm clear glass &
4.5mm Magnetite		 blue starblue starhalf blue star red starred starred starred starred starred star 37% 61% 2.6 0.66
Single glazed 3mm clear glass with
Solartite** and 4.5mm Magnetite		 blue starblue starblue starblue starblue starblue starhalf blue star red starred starred starred starhalf red star 76% 45% 1.8 0.20

 

*WERS standard typical industry window
**Solartite is a range of high performance window film. The window tested above has Solartite’s low-e film.

Magnetite vs Traditional Double Glazing – What the experts says

Winter - the ideal situation is to let in as much of the sun's heat and then trap it inside to maintain a comfortable environment in your home or office. This will also significantly reduce heating costs and saves you money. The ideal window for winter will have a high SHGC to let the sun's heat in and a low U-Value to prevent the heat from escaping. Clear windows without shading films are better suited for winter climates.

Compared with traditional double-glazing, Magnetite’s double-glazing solution can provide better results during winter or for cold climate areas such as Canberra, the Adelaide Hills and Blue Mountains.

Magnetite's clear acrylic window panels allow the direct heat from the sun's rays to enter the building and once inside, Magnetite's superior magnetic seals retain the heat, giving Magnetite an advantage over conventional operating windows.

Glazing Type Cooling Stars Heating Stars Cool% Heat% Uw SHGC AI
Double Glazed 3mm clear glass/12mm air
gap/3mm clear glass IGU (Insulated Glass Unit)*		 blue starblue starhalf blue star red starred starred starred starred starhalf red star 40% 55% 3.0 0.61 5.0
Single glazed 3mm clear glass &
4.5mm Magnetite		 blue starblue starhalf blue star red starred starred starred starred starred star 37% 61% 2.6 0.66 0.5

 

*WERS standard typical industry window

Summer - the ideal situation is to minimize the heat coming in from outside and prevent the cool air inside from escaping through the window. This will make your home more comfortable and reduce your air-conditioning costs. The ideal window for summer, or for a large west-facing window, will have a low SHGC to limit the heat from the sun's direct rays, as well as, a low U-Value to prevent the heat in the air outside from moving through the window and warming the cool conditioned air inside. It is better to have a shading film on the first (outer) glass pane to limit the heat that enters the double glazed unit.

The combination of Magnetite retrofit double glazing and Solartite outperforms the traditional insulated glass unit for hot climate. Magnetite fit over an existing window with reflective film will give better summer heat control than a double-glazed window with supertoned glass.

The Magnetite system stops the conduction and convection of heat better than glass windows giving superior results for summer conditions. Combined with a film or a shading device, Magnetite is the ideal solution for the hot Australian conditions.

Glazing Type Cooling Stars Heating Stars Cool% Heat% Uw SHGC AI
Double Glazed 5mm Supertoned glass/6mm
air gap/5mm clear glass IGU (Insulated Glass Unit)*		 blue starblue starblue starhalf blue star red starred starred starred starhalf red star 54% 425% 3.30 0.461 5.0
Single glazed 3mm glass Solartite**
and 4.5mm Magnetite		 blue starblue starblue starblue starblue starhalf blue star red starred starred starred star 73% 38% 2.4 0.19 0.5

 

*WERS standard typical industry window
**Solartite is a range of high performance window film. The window tested above has Solartite’s low-e film.

Click here to view pdf version of Magnetite WERS test result.

Noise Reduction Technical Data and Results

Proven Results

Noise pollution is one the biggest problems faced in the cities today, particularly in a high-density living. Unwanted noise can be responsible for sleep loss and lack of concentration. This can lead to a deterioration of health through increased stress levels, headaches, high blood pressure and loss of hearing.

Noise penetrates windows through leaky seals or vibrations through the window structure. To reduce noise, a window should minimise air infiltration, hold enough weight to limit vibration and allow a large air cavity. This cavity, or air gap, is the key to secondary glazing.

Expert Advice:

CSIRO Research by John Davy shown an air cavity can effectively enhance sound insulation performance. The larger the air cavity the more noise the window system can reduce. Results show a wide air gap of 100-125mm will improve sound insulation by an average of 7dB(A) more than windows with a narrow gap of 8-13mm.

Window or Glass Door Type Total Glass Thickness (mm) Air Cavity Thickness (mm) Sound Insulation (dB)
Single Glaze 3mm 3 0 23
Single Glaze 6mm 6 0 27
Double Glaze Narrow Gap 9-12 8-13 31
Double Glaze Wide Gap 9-12 100-125 38

 

The human ear is less sensitive to low frequency sound. According to a study released by the CSIRO, the human ear needs a change of 3dB to detect a difference in noise levels and the human ear perceives a change of 10dB as a doubling or halving of the noise level.

If you double the thickness of glass in a window the noise level will decrease by 3dB the least amount possible to make a difference. If the glass is laminated there is no perceived difference in noise reduction.

National Acoustic Laboratory Testing:

Working with the principles of noise transfer, Magnetite® and Soundtite are designed for high performance, which is achieved by combining air tight seals with the ability to maximize an air cavity and the flexibility to vary glazing thickness to suit. Magnetite® is excellent at reducing general noise such as busy roads, commuter trains and noisy neighbours. Whereas, Soundtite works well to combat low frequencies noise such as garbage truck, freight trains or airplane during take-off and landing.

Test Code Material Tested Rw* Improvement
ATF 707 (test window) Aluminium sliding window, 3mm float glass with mohair seals 23 N/A
ATF 709 Test window, 100mm air gap and Magnetite System (4.5mm acrylic panel) 35 52%
ATF 1507 Test window, 100mm air gap and Magnetite System (10.0mm acrylic panel) 39 70%
ATF 817 Test window, 100mm air gap and Soundtite (6.38mm laminated glass) 41 78%

 

*The Weighted Sound Reduction Index (Rw) is a measure for sound insulation performance of a single building element such as windows. The higher the Rw rating, the better the sound insulation.