How can you reduce noise in open-plan offices and classrooms?

1 What is noise and how does it affect us?

Noise is any unwanted or harmful sound that can cause annoyance, stress, fatigue, or hearing loss. Noise can also impair our ability to perform tasks that require attention, memory, or creativity. According to the World Health Organization, noise levels above 55 decibels (dB) can have negative impacts on health and learning outcomes. For comparison, a normal conversation is about 60 dB, a busy street is about 80 dB, and a jet engine is about 120 dB.

2 How can you measure and monitor noise levels?

One of the first steps to reduce noise in open-plan offices and classrooms is to measure and monitor the existing noise levels and sources. You can use a sound level meter or a smartphone app to measure the average and peak noise levels in different areas and times of the day. You can also use a sound map or a survey to identify the main sources of noise, such as traffic, equipment, or people. By collecting this data, you can assess the current situation and plan for improvements.

3 How can you design and arrange the space to reduce noise?

In order to reduce noise in open-plan offices and classrooms, it is important to design and arrange the space in a way that minimizes sound transmission and reflection. To achieve this, you can divide the space into smaller zones or clusters based on the function and noise level of each activity. For instance, you can separate quiet areas for individual work from noisy areas for collaboration or socializing. Additionally, using partitions, screens, or furniture to create physical barriers between different zones or clusters can help block or absorb sound waves and create more privacy and visual comfort. Furthermore, soft materials such as carpets, curtains, or acoustic panels can be used to cover hard surfaces such as walls, ceilings, or floors. These can reduce sound reflection and reverberation which can amplify noise and create echoes. Lastly, adding plants, artwork, or other decorative elements to the space can help absorb or diffuse sound waves while also creating a more pleasant and natural atmosphere.

4 How can you control and optimize the sound sources to reduce noise?

Controlling and optimizing sound sources is another way to reduce noise in open-plan offices and classrooms. You can reduce the volume or frequency of external noise sources, such as traffic, construction, or machinery, by installing double-glazed windows, insulation, or soundproof doors. Additionally, you can reduce the volume or intensity of internal noise sources, such as equipment, devices, or people, by using quieter models, adjusting the settings, or maintaining them regularly. You can also optimize the quality and distribution of internal sound sources like music, speech, or signals by using appropriate speakers, microphones, or amplifiers. Moreover, sound masking or white noise systems can be employed to produce a low-level background noise that can cover up or reduce the impact of other noises. To ensure success in reducing noise levels in these spaces it is important to establish and enforce noise policies or guidelines such as using headphones, silencing phones, speaking softly and scheduling noisy activities outside peak hours.

5 How can you educate and engage the users to reduce noise?

The final way to reduce noise in open-plan offices and classrooms is to educate and engage the users of the space, such as employees, students, or visitors. To do this, inform the users about the noise levels and sources in the space and how they can affect their performance, health, and well-being. You can use signs, posters, or newsletters to communicate this information and raise awareness. Additionally, involve the users in the planning and implementation of noise reduction measures by using surveys, focus groups, or workshops. Furthermore, incentivize the users to comply with the noise policies or guidelines by using recognition, rewards, or gamification to motivate and reinforce positive behavior.

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?