Noise Management Plan - Lambeth

Three Spires Acoustics 2 Syke Ings

Iver

Bucks

SL09ET.

Tel: 01753 651185 Mob: 07939324063

[email protected]

www.threespiresacoustics.co.uk

Company Representative

Chris Hurst

Noise Management Plan SW4 2017 & House of Common Concert

26th to 28th August 2017

for Lock n Load Events Ltd.

.

Prepared for:

Andrew Mattle

Lock n Load Events Ltd

Unit 11.G.01 The Leathermarket

11-13 Weston Street London SE1 3ER

Report Issued

17.11.2016

Report Reference

CH/NMP/2016/30

Annex A(iv)

mailto:[email protected]

http://www.threespiresacoustics.co.uk/

DOCUMENT CONTROL

Revision Date: Prepared by: Client Doc Ref Reason for Issue:

1.0 17/11/2016 Chris Hurst LocknLoad Events Ltd CH/NMP/2016/30 Initial

DISCLAIMER This report was completed by Three Spires Acoustics Ltd on the basis of a defined programme of work and terms and conditions agreed with the Client.

The report has been prepared with all reasonable skill, care and diligence within the terms of the Contract with the Client and taking into account the

project objectives, the agreed scope of works, prevailing site conditions and the degree of manpower and resources allocated to the project.

Three Spires Acoustics Ltd accepts no responsibility whatsoever, following the issue of the report, for any matters arising outside the agreed scope of

the works. This report is issued in confidence to the Client and by Three Spires Acoustics Ltd has no responsibility of whatsoever nature to third parties

to whom this report or any part thereof is made known. Any such party relies upon the report at their own risk. Unless specifically assigned or

transferred within the terms of the agreement, by Three Spires Acoustics Ltd retains all copyright and other intellectual property rights, on and over the

report and its contents.

© Three Spires Acoustics Ltd

Lock n Load Events

SW4 2017 Noise Management Plan

Ref: CH/ENA/2016/13 April 2016 Page 1 of 12

Commercial-in-Confidence

TABLE OF CONTENTS

1. INTRODUCTION .................................................................................................................................. 2

1.2. CONSULTANTS’ EXPERIENCE ................................................................................................................ 2

1.3. PROFESSIONAL ASSOCIATIONS ............................................................................................................. 2

2. SITE DESCRIPTION ............................................................................................................................... 2

3. PREMISES LICENCE CONDITIONS .......................................................................................................... 3

4. SOUND CONTROL PROCEDURES .......................................................................................................... 3

4.1. SOUND CONTROL ............................................................................................................................. 3

4.2. PRE-EVENT INFORMATION .................................................................................................................. 3

4.3. SOUND SYSTEM DESIGN ..................................................................................................................... 3

4.4. SOUND PROPAGATION AND PRE EVENT TESTS ............................................................................................ 4

4.5. SOUND MONITORING AND CONTROL ...................................................................................................... 4

4.6. COMPLAINTS HANDLING ..................................................................................................................... 4

4.7. EXTERNAL MONITORING ..................................................................................................................... 4

4.8. COMPLIANCE REPORT ........................................................................................................................ 5

5. CONCLUSIONS .................................................................................................................................... 5

APPENDIX A: NOISE MONITORING LOCATIONS ............................................................................................ 6

APPENDIX B – COMMENT/COMPLAINT LOG FROM ..................................................................................... 7

APPENDIX C – GLOSSARY OF TERMS ............................................................................................................ 8

LIST OF FIGURES

FIGURE 1: LOCATION MAP WITH APPROXIMATE NOISE MEASUREMENT POSITIONS........................................... 6

LIST OF TABLES

TABLE 1: – SUMMARY OF PREMISES LICENCE NOISE CONTROL CONDITIONS. ................................................................... 3

LocknLoad Events Ltd


Ref: CH/NMP/2016/09 November 2016 Page 2 of 12

Client Copy

1. INTRODUCTION

Three Spires Acoustics Ltd have been commissioned by Lock & Load Events to assist in the control of

sound at the SW4 2017 music and dance festival on 26th & 27th August 2017 and the House of Common

Concert on August 28th 2017 (Bank Holiday Monday) , to be held at Clapham Common SW4.

1.1. SCOPE

The primary purpose of this NMP is to describe the noise management methodology that will be implemented in order to minimise the effects of noise from live and recorded amplified music and assist with compliance of the premise licence conditions related to regulated entertainment.

1.2. CONSULTANTS’ EXPERIENCE

Three Spires Acoustics is an acoustic consultancy specialising in providing advice to the entertainment

industry and licensing authorities on matters relating to the management of sound at outdoor and

indoor events.

The team of consultants have experience dealing with many outdoor concerts and events in London

and the wider area with clients including; BBC, SkyTV & Burberry and events ranging from Proms in

the Park at Hyde Park to SW4 Dance Festival at Clapham Common.

Consultants have membership of the Institute of Acoustics (IOA) and Chartered Institute of

Environmental Health (CIEH) and the Institute of Licensing (IOL) and several members of staff have a

regulatory or sound engineering background.

As well as the provision of sound and acoustic design/management for entertainment venues, the

company deals with the whole range of noise and regulatory control issues and our staff have

presented expert testimony at planning and licensing hearings.

1.3. PROFESSIONAL ASSOCIATIONS

Members of The Institute of Acoustics (MIOA)

Members of The Institute of Licensing (AMIOL)

Members of the Chartered Institute of Environmental Health Officers (MCIEHO)

2. SITE DESCRIPTION

SW4 2017 is a music and dance festival which has been held at the Clapham Common site for over a

decade. 2016 saw the addition of the House of Common Concert on Bank Holiday Monday, headlined

by Madness and this will be held again in 2017.

The SW4 site occupies a temporary arena at the north-east corner of Clapham Common and consists

of a main stage and three smaller enclosed stages along with various concession stalls and bars. All

sound systems are broadly orientated in a westerly direction towards the bandstand. Live and

recorded music forms part of the regulated entertainment subject to premises licence conditions

http://www.ioa.org.uk/

http://www.instituteoflicensing.org/

http://www.cieh.org/




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related to noise control. The event is due to run from 12.00 until 22.30 on 26th, 27th and 28th August

2017 with rehearsal and sound checks being undertaken on Friday 25th August. Site layout for the

event has yet to be finalised, however it is anticipated that the location and orientation of the stages

will be broadly the same as for 2016. An aerial photograph illustrating the site layout, stage positions

and noise monitoring locations is presented in Appendix A.

3. PREMISES LICENCE CONDITIONS

The premises licence conditions relevant to noise are reproduced in Table 1 below. The limit levels

reflect LB Lambeth’s Policy Guidance on the control of sound at out-door events (2016).

Table 1: – Summary of Premises Licence Noise Control Conditions.

Location Condition Level

dB(A)1 dB(C)2

MP1 8A Windmill Drive 75 90

MP2 14 Clapham Common West 75 90

MP4 Hospice 30 Clapham Common North 75 90

1. The LAeq, 15minute Music Noise Level (MNL) measured for any 15 minute period of the event outside any noise sensitive premises. (freefield)

2. The LCeq,15minute Bass Music Noise Level (LFMNL) measured for any 15 minute period of the event outside any noise sensitive

premises.(freefield)

4. SOUND CONTROL PROCEDURES

4.1. SOUND CONTROL

In order to ensure that the premise licence condition limits are complied with, the following noise

control procedures that have been successfully used from 2009 to 2016 will be adopted for this event.

Such procedures have been developed by Three Spires and have been successfully implemented at

numerous concerts throughout London and the wider area. It is anticipated, as normally occurs, that

the consultants carrying out the sound control program will work closely with the Environmental

Health Officers and/or authorised acoustic consultants working on behalf of the London Borough of

Lambeth. A brief outline of the procedures are provided below;

4.2. PRE-EVENT INFORMATION

Local residents will be informed of the details of the event including start and finish times of sound

checks and the concerts and a landline telephone number for making enquiries or complaints during

the event.

4.3. SOUND SYSTEM DESIGN

Capital Sound Hire Limited will provide the sound system, engineers and production for the event. We

understand that the Martin Audio Flown Line Array System with additional Sub Array system, which

was successfully deployed for 2014 to 2016 events, will be used again in 2017. This system gave a

greater degree of audience focused sound and better control over the lateral dispersion and

http://www.eventlambeth.co.uk/wp-content/uploads/2016/08/Guidance-for-Control-of-Sound-at-Outdoor-Events-2016.pdf




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longitudinal throw of the music noise energy. A side out-fill system will be deployed for near field

coverage on and near to the stage. A cardioid arrangement of the sub base array will be deployed to

assist in the reduction of low frequency noise, which is an historical issue due to the type of music and

constraints of the site.

We understand that there will also be Martin Audio Flown Array Systems for stage 2 and 3 and a

ground stack point source system for stage 4.

4.4. SOUND PROPAGATION AND PRE EVENT TESTS

Sound propagation tests will be carried out before the start of the concert, on the afternoon of Friday

25th August 2017. These involve playing pre-recorded music through the PA systems and measuring

sound levels simultaneously at the FOH positions within the arena and at the specified monitoring

locations. The sound system can then be fine-tuned by using the PA characteristics and Digital Signal

Processing, such that the maximum attenuation can be achieved from inside to outside the arena and

a maximum level can also be set at the mixer positions in order that premise licence conditions can be

complied with.

4.5. SOUND MONITORING AND CONTROL

To supplement and facilitate a more rapid response and control system, a wireless network link is to

be established with all sound measuring equipment both inside and outside the arena.

The music sound levels at all the mixing desk positions and the three permanent offsite positions will

be continually monitored in terms of 15 minute and 1 minute LAeq , LCeq and 1/3 octave band levels.

This information will be relayed to a central control point indicated on the site plan in Appendix A.

This point will be permanently monitored by a consultant/engineer and will enable real time music

levels to be viewed via a laptop computer. Should the offsite monitoring levels reach a critical level it

will be possible to view the relevant onsite FOH levels and judge whether a particular stage has caused

the exceedence or whether this may be due to other extraneous environmental factors. Where

necessary an intervention can then be made via the central control point to the Capital sound engineer

to reduce the onsite levels at the relevant mixer stage positions.

4.6. COMPLAINTS HANDLING

Should complaints of music noise arise during the event, the details will be logged by the onsite ELT

team and passed onto the Three Spires consultants who will assess the music noise level at the closest

permanent external monitor with the location details of the complaint. This will assist in building up a

geographical picture of complaints. Where a resident wishes for a consultant to visit, this will be

undertaken (wherever practicable) and location measurements recorded. Where an intervention will

be necessary to ensure MNL’s are compliant, instruction will be conveyed by two-way radio

communication with the central control point, with intervention instructions then relayed to the

relevant Capital sound engineer.

4.7. EXTERNAL MONITORING

Three permanent offsite monitoring stations will be located at; Windmill Drive, Clapham Common

North (Hospice) and Clapham Common West (Tennis Courts). These are considered representative of

noise sensitive locations and are indicative of compliance at other locations (subject to normal




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meteorological conditions.) Supplementary music noise measurements outside of the site will be

taken at the other locations on a rotational basis. Figure 1 in Appendix A presents an aerial photograph

identifying the site, stage locations and external monitoring points.

4.8. COMPLIANCE REPORT

A compliance report will submitted to the client within 14 days of the end of the event.

5. CONCLUSIONS

Three Spires Acoustics have reviewed and recommended procedures for event sound control at SW4

2017 and the House of Common Concert which when implemented will ensure that the event

achieves the requirements of the premises licence conditions and the public nuisance objective of the

Licensing Act 2003.




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APPENDIX A: NOISE MONITORING LOCATIONS

Figure 1: Location Photograph with Approximate Noise Measurement Positions

Stages

Monitoring Locations

Central Control Point

Wireless Connection

Hospice

Clapham

Common West

Windmill Drive

Main

Stage

4

2

3




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APPENDIX B – COMMENT/COMPLAINT LOG FROM

Typical form to be completed when receiving telephone call of complaint regarding noise or during

an event.

If premises licence holder receives a telephone call of complaint regarding noise during an event,

they will complete the following form:

Name of Event

SW4 2017 & House of Common Concert Comment/Complaint Form

Date

Time complaint received

Name of complainant

Address of complainant

Telephone number of complainant

Location of noise disturbance (address)

Time disturbance noted

Nature of complaint Vocals / bass / general/

Inside / outside

Any additional comment




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APPENDIX C – GLOSSARY OF TERMS

Noise Noise is defined as sound unwanted at the point of reception. The range of audible sound is from 0 dB to 140

dB. The frequency response of the ear is usually taken to be about 18 Hz (number of oscillations per second) to

18000 Hz. The ear does not respond equally to different frequencies at the same level. It is more sensitive in

the mid-frequency range than the lower and higher frequencies and because of this, the low and high

frequency components of a sound are reduced in importance by applying a weighting (filtering) circuit to the

noise measuring instrument. The weighting which is most widely used and which correlates best with

subjective response to noise is the dB(A) weighting. This is an internationally accepted standard for noise

measurements.

For variable noise sources such as traffic, a difference of 3 dB(A) is just distinguishable. In addition, a doubling

of a noise source would increase the overall noise by 3 dB(A). For example, if one item of machinery results in

noise levels of 30 dB(A) at 10 m, then two identical items of machinery adjacent to one another would result in

noise levels of 33 dB(A) at 10 m. The ‘loudness’ of a noise is a purely subjective parameter but it is generally

accepted that an increase/decrease of 10 dB(A) corresponds to a doubling/halving in perceived loudness.

External noise levels are rarely steady but rise and fall according to activities within an area. In an attempt to

produce a figure that relates this variable noise level to subjective response, a number of noise indices have

been developed. These include:

LAmax noise level: This is the maximum noise level recorded over the measurement period.

LAeq noise level: This is the ‘equivalent continuous A-weighted sound pressure level, in decibels’ and is defined in British Standard 7445 (BS 7445) [ ] as the ‘value of the A-weighted sound pressure level of a continuous, steady sound that, within a specified time interval, T, has the same mean square sound pressure as a sound under consideration whose level varies with time’. It is a unit commonly used to describe construction noise and noise from industrial premises and is the most suitable unit for the description of other forms of environmental noise. In more straightforward terms, it is a measure of energy within the varying noise. It is also the unit best suited to assessing community response.

Music Noise Level (MNL) : the LAeq of music noise measured at a particular location.

LA10 noise level: This is the noise level that is exceeded for 10% of the measurement period and gives an indication of the noisier levels. It is a unit that has been used over many years for the measurement and assessment of road traffic noise.

LA90 noise level: This is the noise level that is exceeded for 90% of the measurement period and gives an indication of the noise level during quieter periods. It is often referred to as the background noise level and is used in the assessment of disturbance from industrial noise.

Hz (Hertz): The tonal quality of a sound is described and measured in terms of the frequency content and is commonly expressed as octave or third octave bands, the latter being the division of the octave bands into three for finer analysis, across the frequency spectrum. The smaller the octave band or third octave band centre frequency number defined in terms of Hz, the lower the sound. For example 63 Hz is lower than 500 Hz and is perceived as a deeper sound. The attenuation due to air absorption and natural barriers increases with frequency i.e. low frequencies are always the most difficult to control




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An indication of noise levels and pitches is provided in Appendix A1.1 and A1.2 of Building Bulletin 93 ‘Acoustic

Design of Schools: A Design Guide’, 2003 (BB 93). These are reproduced in Figures A1 and A2 below:

Typical sound pressure levels




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Noise Management Plan - Lambeth

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