Construction noise pollution

Noise Pollution Impact

The scientific facts about how the reclamation project will disrupt our peace and quality of life

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The Sound of Progress? No, Scientific Evidence Shows Otherwise

The proposed reclamation project threatens to transform the peaceful atmosphere of Karpal Singh Drive into a cacophony of excavation, on-site recycling, reclamation, and construction noise that will last for at least 24 years (PLB – EIA Report, Page 5.16). This isn't just about minor inconvenience—it's about a fundamental degradation of our living environment and quality of life, backed by scientific data and acoustic modeling.

The Hard Numbers: EIA Report Predictions Exceed Safety Limits

According to PLB's own Environmental Impact Assessment (EIA) Report(Table 7.67), construction noise is expected to far exceed acceptable levels set by the Department of Environment. The EIA's mathematical modeling (RCNM) predicts alarming noise levels:

At Project Site

85.3 dB(A)

EIA predicted level without control measures
(DOE limit: 65 dB(A))

At Mutiara Idaman 1

75.2 dB(A)

EIA predicted level without control measures
(DOE limit: 65 dB(A))

At Summer Place

74.5 dB(A)

EIA predicted level without control measures
(DOE limit: 65 dB(A))

These noise measurements were obtained using the RCNM (Roadway Construction Noise Model), the same professional modeling software used in environmental impact assessments worldwide. The data clearly shows that even with theoretical noise control measures in place, residents will still suffer significant noise pollution beyond acceptable thresholds.

Understanding Noise Levels: What This Means for Residents

To understand what these numbers mean for your daily life, consider these noise equivalents:

Noise Level Equivalent Sound Impact on Health & Well-being
40-50 dB(A) Quiet office, library Normal conversation possible, suitable for sleeping
60-65 dB(A) Normal conversation, air conditioner Begins to interfere with sleep, affects concentration
70-80 dB(A) Vacuum cleaner, busy traffic Causes stress, difficulty communicating, sleep disturbance
80-90 dB(A) Garbage disposal, lawn mower Damage to hearing with prolonged exposure, significant stress
90+ dB(A) Motorcycle, construction equipment WHO warns of severe health impacts including hearing damage

⚠️ According to the EIA report, the predicted noise levels at Karpal Singh Drive will reach 85.3 dB(A)—equivalent to standing next to a food blender or lawn mower running continuously.

⚠️ The World Health Organization (WHO) recommends noise exposure limits of less than 75 dB(A) for 8-hour exposure to prevent hearing damage.

⚠️ WHO notes that 55 dB(A) or less is the desirable daytime outdoor noise level that won't cause annoyance.

⚠️ The project's noise levels will exceed both WHO recommendations and Malaysia's DOE guidelines for residential areas.

Construction Equipment: The Real Sources of Noise

The Environmental Impact Assessment (EIA) report references Table 7.62 (sourced from the United States Environmental Protection Agency) to detail the noise levels measured at 15 meters from commonly used construction equipment. According to WHO, the ranges of noise levels are scientifically significant because sustained exposure above 80 dB(A) can adversely affect health. Below is a summary adapted directly from the EIA:

Equipment Noise Level at 15 m [dB(A)]
Loader (9100-200kW) 83–92
Cranes (Small Mobile) 74–80
Dump Trucks 65–82
Welding Sets (300 A) 69–75
Pile Driver (Air Hammer) 80–101
Chipping Hammer on Steel 63–81
Grinder 63–68
Air Compressor 65–67
Concrete Truck (24T) 69–78
Diesel Generating Sets (250 kVA) 74–81
Dowers 85–87
Jackhammer & Rock Drills 82–98
Saws 74–82

As shown, certain pieces of equipment—especially pile drivers and jackhammers—can easily exceed 100 dB(A) at just 15 meters away, surpassing the recommended limits set by both Malaysia’s Department of Environment and the World Health Organization (WHO). Notably, many machines will operate simultaneously, the cumulative noise may exceed recommended environmental limits for residential areas.

8-hour exposures above 85 dB(A) can contribute to hearing damage, chronic stress, cardiovascular strain, and diminished quality of life. Considering the extended timeline of this proposed reclamation project—up to 24 years—residents would be subject to repeated high-decibel events with minimal respite.

Operational Hours & Duration: A Never-Ending Nightmare

According to the EIA report, construction activities will continue for years with:

  • Construction vehicles operating throughout daylight hours
  • Four waste recycling machines in each Working Platform processing 173 cubic meters of material per hour (Table 5.10). Each machine operating for 10 hours daily, adjacent to residential areas
  • Continuous operations spanning the entire 24-year development timeline

This is not a temporary inconvenience—it represents a fundamental transformation of our community's soundscape for a generation.

Vehicle Noise: The Hidden Factor

The EIA document reveals a crucial but often overlooked aspect of construction noise—vehicle movements. According to the report:

"Exhaust noise from vehicles constitutes the predominant source for normal operation below 55 Km/hr... Diesel trucks are 8 to 10 dBA noisier than gasoline powered ones." (Page 7.239)

"According to the USA Environmental Protection Agency, sound pressure level projected from vehicular movements will fall within a range of 65 dB(A) measured 36 m away." (Page 7.239)

With hundreds of heavy construction vehicles moving materials daily, this constant traffic will create a persistent baseline of noise that exceeds residential standards.

Impact on Health and Quality of Life

The World Health Organization (WHO) has established clear links between noise exposure and health impacts. These noise levels will cause:

Sleep Disruption

The WHO recommends "35 dB(A) or less (bedroom noise limit)" for "No likelihood of sleep disturbance." Even with perfect implementation of all mitigation measures, the projected levels of 41.5-52.3 dB(A) will make normal sleep patterns impossible for nearby residents, leading to chronic fatigue, decreased productivity, and serious health issues over time.

Stress and Mental Health

The EIA report acknowledges that "noise generated from construction activities is usually perceived by most residents as intrusive in nature." (Page 7.240). Scientific studies confirm persistent noise exposure above 65 dB(A) is linked to increased cortisol levels, irritability, poor concentration, and anxiety disorders.

Communication Interference

According to WHO standards cited in the EIA report, "less than 45 dB(A) (background noise)" (Table 7.63) is required "For good speech intelligibility indoors." The projected noise levels will make normal conversation difficult, affecting everything from family discussions to work-from-home productivity.

Property Value Impact

Areas with high noise pollution typically see decreases in property values of 8-10%, according to international real estate studies. This represents a significant financial impact for homeowners who have invested in Karpal Singh Drive properties.

Mitigation Claims vs. Reality

The EIA report makes vague claims about noise reduction measures (Table 7.68), stating they can achieve "noise reduction of 23-33 dBA" through various controls (Page 7.246). However, this is theoretical at best and misleading at worst:

1. Even with the claimed reductions, the projected noise levels would still be (Table 7.69):

  • At Project Site: 52.3 dB(A)
  • At Mutiara Idaman 1: 42.2 dB(A)
  • At Summer Place: 41.5 dB(A)

2. These "controlled" levels assume perfect implementation of all mitigation measures—an unrealistic expectation given the project scale.

3. The report provides no enforcement mechanisms to ensure these control measures are implemented and maintained over the 24-year project timeline.

The EIA's proposed mitigation methods (Page 7.246) include:

  • Noise reduction at source (5-10 dBA): Through retrofitting with mufflers and using quieter equipment configurations
  • Noise reduction with barrier protection (15-20 dBA): Using commercial panels lined with sound-absorbing material
  • Noise reduction with distance shielding (3 dBA): Placing equipment further from residential boundaries

However, the report acknowledges that even perfect implementation would only bring noise levels down to 41.5-52.3 dB(A)—still above WHO's recommendations for peaceful residential environments. Moreover, there are no binding commitments to maintain these measures throughout the project's lifespan.

Scientific Evidence: The Case Against Reclamation

The EIA report itself provides the strongest evidence against the project. According to the noise modeling, even with theoretical controls in place:

"8 hour exposure above 90 dB(A) as shown in Table 7.63 can be detrimental to the residential communities nearby." (Page 7.240)

"Major excavation and construction in a normal suburban community will generate complaints if the eight hour Leq exceeds 85 dB(A) at the boundary line." (Page 7.240)

The project's own documentation confirms that residents will be subjected to noise levels that scientific research has definitively linked to health problems, cognitive impairment, and reduced quality of life.

Our Right to Peace and Health

Residents of Karpal Singh Drive and surrounding areas have a right to a peaceful living environment. The reclamation project, with its 24-year timeline of construction and development, represents an unprecedented threat to this fundamental right.

The scientific data is clear: this project will subject residents to noise pollution that exceeds both Malaysian environmental guidelines and international health standards. The impacts will be felt across all aspects of daily life—from sleep quality to mental health, from property values to overall community wellbeing.

Time to Protest: Stand Up for Our Future

The robust scientific evidence is clear: the reclamation project poses an unacceptable risk to our health. It is imperative that we demand a reject to this project.

We call on all community members, scientists, and concerned citizens to join forces and protest this environmental injustice.

Join the Movement Now!

History shows that organized, evidence-based protest can drive change. Together, we can compel decision-makers to prioritize public health over reckless development. Your voice matters—demand a sustainable future!

Join the Protest Today

Stand Against the Noise

The evidence is clear. The noise from this project will exceed legal limits and impact our health for decades. Join us in opposing this harmful reclamation project and protecting our right to peace and quiet.

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