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External Lighting Strategy Overview

October 2009

NPIA Ryton

258847 BNI SNI 02 0C

P:\Edinburgh\SNI\Projects\258847 - NPIA Ryton\06-Documents\69-Outgoing Docs - Record Copies\09.10.02\External Lighting Report Rev

01 October 2009


October 2009

NPIA Ryton

Mott MacDonald, Caledonian Exchange, 3rd Floor, 19a Canning Street, Edinburgh EH3 8EG, United Kingdom

T +44(0) 131 221 2300 F +44(0) 131 221 2399 W www.mottmac.com


Mott MacDonald, Caledonian Exchange, 3rd Floor, 19a Canning Street, Edinburgh EH3 8EG, United Kingdom

T +44(0) 131 221 2300 F +44(0) 131 221 2399 W www.mottmac.com

Revision Date Originator Checker Approver Description

00 15/09/2009 Callum Russell Garry Calder Richard Fry Overview for Planning

0A 29/09/2009 Callum Russell Garry Calder Richard Fry Incorporating Project Team Comments

0B 30/09/2009 Callum Russell Garry Calder Aaron Stevenson Incorporating Site Layout Drawing Update

0C 01/10/2009 Callum Russell Garry Calder Aaron Stevenson Incorporating Site Layout Drawing Update

Issue and revision record

This document has been prepared for the titled project or

named part thereof and should not be relied upon or used

for any other project without an independent check being

carried out as to its suitability and prior written authority of

Mott MacDonald Limited being obtained. Mott MacDonald

Limited accepts no responsibility or liability for the consequence

of this document being used for a purpose other than the

purposes for which it was commissioned. Any person using or

relying on the document for such other purpose agrees, and will

by such use or reliance be taken to confirm his agreement to

indemnify Mott MacDonald for all loss or damage resulting

therefrom.

Mott MacDonald Limited accepts no responsibility or liability for

this document to any party other than the person by whom it

was commissioned.

To the extent that this document is based on information

supplied by other parties, Mott MacDonald Limited accepts no

liability for any loss or damage suffered by the client, whether

contractual or tortious, stemming from any conclusions based

on data supplied by parties other than Mott MacDonald Limited

and used by Mott MacDonald Limited in preparing this

document.

258847/BNI/SNI/02/0C 01 October 2009 P:\Edinburgh\SNI\Projects\258847 - NPIA Ryton\06-Documents\69-Outgoing Docs - Record Copies\09.10.02\External Lighting Report Rev C.doc


Chapter Title Page

Executive Summary i

1. Introduction 2

2. Roadway Lighting 3 2.1 Fitting Type________________________________________________________________________ 3 2.2 Roadway Dimensions________________________________________________________________ 3 2.3 Required Lighting Levels _____________________________________________________________ 3 2.4 Calculation Results – Roadway Only ____________________________________________________ 4 2.4.1 Mounting Height ____________________________________________________________________ 4 2.4.2 Lamp Type & Distributions ____________________________________________________________ 4 2.4.3 Spacing __________________________________________________________________________ 4 2.4.4 Calculation Output Statistics___________________________________________________________ 4 2.5 Calculation Results – Roadway with Parking Spaces _______________________________________ 5 2.5.1 Mounting Height ____________________________________________________________________ 5 2.5.2 Lamp Type & Distributions ____________________________________________________________ 5 2.5.3 Spacing __________________________________________________________________________ 5 2.5.4 Calculation Output Statistics___________________________________________________________ 5 2.6 Calculation Results – Roadway with Pavement ____________________________________________ 6 2.6.1 Mounting Height ____________________________________________________________________ 6 2.6.2 Lamp Type & Distributions ____________________________________________________________ 6 2.6.3 Spacing __________________________________________________________________________ 6 2.6.4 Calculation Output Statistics___________________________________________________________ 7 2.7 Lighting Controls and Wiring __________________________________________________________ 7 2.8 Security __________________________________________________________________________ 7

3. Walkway Lighting 8 3.1 Fitting Type________________________________________________________________________ 8 3.2 Walkway Dimensions ________________________________________________________________ 8 3.3 Required Lighting Levels _____________________________________________________________ 8 3.4 Calculation Results__________________________________________________________________ 9 3.4.1 Mounting Height ____________________________________________________________________ 9 3.4.2 Lamp Type & Distributions ____________________________________________________________ 9 3.4.3 Spacing __________________________________________________________________________ 9 3.4.4 Calculation Output Statistics___________________________________________________________ 9 3.5 Lighting Controls and Wiring _________________________________________________________ 10 3.6 Security _________________________________________________________________________ 10

4. Conclusions 11

Appendices 12

Content



Appendix A. Proposed External Lighting Strategy Layout Drawing ______________________________________ 13

i



This report has been produced to outline the external lighting strategy for NPIA

Ryton. This document covers Roadway and Walkway lighting with regards to

luminaire type, mounting height and corresponding light and uniformity levels.

The external lighting provision has been designed to balance safe movement,

security, aesthetics, energy efficiency and the site’s rural location.

The proposed luminaire for Roadway lighting is the Denver Pole Luminaire

manufactured by Holophane. In order to meet the required light levels and

uniformity (10-15lux and 0.4 respectively) these luminaires require being located

at 20m intervals on one side of the roadway only. Where parking spaces are at

the side of the roadway (parking to one side only) luminaires are required on both

sides of roadway and off-set 10m.

The proposed luminaire for Walkway lighting is the Denver Bollard luminaire

manufactured by Holophane. In order to meet the required light levels and

uniformity (10lux and 0.25 respectively) these require being located at 7m

intervals on one side of the walkway only.

Executive Summary

2



The objective of this report is to outline the proposed external lighting design that is

to be implemented at NPIA Ryton. The scope of this report covers both Roadway

and Walkway lighting. Feature lighting is outwith the scope this report.

Lighting and uniformity levels shown throughout this report are in accordance with

CIBSE Lighting Guide 6, BS 5489-1 & BS EN 13201 and correspond, where

practical, with the existing light levels at the New Accommodation Block.

As part of the future external lighting strategy, suitable mitigation measures shall be

included in relation to bats for example, through careful positioning and design of

luminaires in line with the Nature Conservation Management Plan.

1. Introduction

3



This section concentrates on the Roadway lighting throughout the site at NPIA

Ryton. In terms of lighting, Ryton has essentially three different types of roadway,

namely:

� Roadway Only

� Roadway with adjacent designated parking.

� Roadway with adjacent pavement.

2.1 Fitting Type

In keeping with existing lighting scheme at the New Accommodation

Block we propose using the Denver Pole Luminaire, as manufactured

by Holophane.

The Denver Pole is a contemporary styled attractive fitting with the

following benefits:

� Controlled directional light minimising light pollution (and therefore

the effect on adjacent wildlife present on site)

� Fully Weather Sealed (IP65)

� Easy Maintenance

� Highly Durable

2.2 Roadway Dimensions

Roadways throughout the site are circa 6m wide. Where pavements

are provided these are circa 1.8m wide and parking spaces are 5m in

length perpendicular to the Roadway and grouped together.

2.3 Required Lighting Levels

The required lighting levels and uniformity are shown below in average

illuminance in lux and as a minimum/average (Uo) ratio respectively:

Required Lighting & Uniformity Levels

Description Avg(Lx) UO (Min/Avg)

Roadway 10-15 0.4

Pavement 10 0.25

Parking Areas 15 0.4

Local Security Lighting* 20-50 0.4

*Where there is a requirement for localised security lighting e.g. the

gate house lighting levels will be increased.

2. Roadway Lighting

Denver Pole

Source: www.holophane.co.uk

4



2.4 Calculation Results – Roadway Only

In order to achieve the required lighting levels and uniformity for

roadways, the following arrangement is proposed:

2.4.1 Mounting Height

Lighting columns used to mount the Denver Pole luminaire shall be 5m

high in order to correspond with the fittings already used at the New

Accommodation Block (Please refer to diagram on page 6 for details).

2.4.2 Lamp Type & Distributions

In order to achieve the required light levels the following lamp is

proposed:

100W CDMT3 Metal Halide

This lamp type produces a crisp white light and is the same type as

used at the New Accommodation Block.

The optical arrangement used for the Roadway only sections of the site

is the Street Light Distribution reflector. This allows for minimal light

spill, away from the roadway, while giving good uniformity and allowing

the luminaires to be widely spaced.

2.4.3 Spacing

To achieve the required light levels and uniformity the luminaires shall

be spaced at 20m intervals at one side of the road only.

2.4.4 Calculation Output Statistics

The following table shows the light level and uniformity achieved by

utilising the arrangement detailed above.

Calculation Output Statistics

Description Avg(lx) Max(lx) Min(lx) UL(Min/Max) UO(Min/Avg)

Roadway 18 55 7.3 0.13 0.40

Assumption(s): Road Surface type is Tarmac or similar.

Street Light Distribution


5



2.5 Calculation Results – Roadway with Parking Spaces


sections of roadway with adjacent parking spaces to one side the

following arrangement is proposed:


Lighting Columns used to mount the Denver Pole luminaire shall be 5m


Accommodation Block. (Please refer to diagram on page 6 for details).


To achieve the required light levels the following lamp is proposed:



used at the New Accommodation Block.

The optical arrangement proposed for Roadways with adjacent parking

spaces is the Asymmetric Light Distribution reflector. This allows for

a wide, far reaching light coverage to illuminate both the road and the

parking spaces with good uniformity.

2.5.3 Spacing


be spaced at 20m intervals on both side of the road and off-set from

each other (i.e. 10m apart on the opposite side of the road).






Roadway 14 32 8 0.25 0.60

Parking Spaces 15 32 8 0.25 0.54


Asymmetric Light Distribution


6



2.6 Calculation Results – Roadway with Pavement

In order to achieve the required lighting levels and uniformity for a

Roadway with an adjacent pavement to one side, the following

arrangement is proposed:


Lighting columns used to mount the Denver Pole luminaire shall be 5m


Accommodation Block (see diagram opposite, with reference to the

table below, for dimensions).

Column Dimensions Reference Table



To achieve the required light levels the following lamp is proposed:



used at the New Accommodation Block. The higher lamp rating is to

allow for the extra distance required to illuminate the pavement and

Roadway.

The optical arrangement for roadways with adjacent pavement sections

is the Road Light Distribution reflector. This allows for minimal light

spill, away from the roadway, while giving good uniformity and allowing

the luminaires to be widely spaced.

2.6.3 Spacing


be spaced at 20m intervals on the pavement side of the road only.

Column Dimensions


7








Roadway 13 41 6 0.14 0.44

Pavement 31 61 14 0.24 0.46


2.7 Lighting Controls and Wiring

All external luminaires shall be controlled via a photocell and time clock

arrangement complete with a central override switch located within the

security booth.

Underground wiring systems consist of XLPE/SWA/LSF Cabling drawn

into PVC flexible ducting.

2.8 Security

Luminaires will be coordinated with the site’s CCTV cameras and

security sensitive areas will be provided with increased light levels.

8



This section of the report concentrates on the Walkway lighting throughout the site

at NPIA Ryton. For the purposes of this report Walkway lighting refers to

pedestrian routes that are not adjacent to roadways.

3.1 Fitting Type

In keeping with the Roadway lighting scheme section above we

propose using the Denver Bollard fitting, as manufactured by

Holophane.

The Denver Bollard is a contemporary styled attractive fitting with the

following benefits:

� Single Sided Optic available to allow concentrated light distribution.

� Fully Weather Sealed (IP65)

� Highly Durable

3.2 Walkway Dimensions

The walkways throughout the site have been assumed to be circa 2m

wide.

3.3 Required Lighting Levels

The required lighting levels and uniformity are shown below in average

illuminance in lux and as a minimum/average (Uo) ratio respectively:

Required Lighting & Uniformity Levels

Description Avg(Lx) UO (Min/Avg)

Walkway 10 0.25

3. Walkway Lighting

Denver Bollard


9



3.4 Calculation Results


walkways the following arrangement is proposed:


All bollard luminaires shall be 1m high in order to allow for maximum

spacing (see diagram opposite for dimensions).


In order to achieve the required light levels the following lamp shall be

used:

26W Compact Fluorescent

This lamp type has excellent energy efficiency characteristics together

with long lamp life and is complimentary to the lamp used in the Denver

Pole mounted luminaires.

The optical arrangement used with this luminaire will be a Prismatic

lens Light Distribution. This allows for a maximum spread of light,

resulting in good uniformity levels and fewer fittings being required. A

louvered fitting is available to reduce light spillage but this results in

almost twice the number of luminaires being required. Louver type

bollards however, may be required for areas that have been defined as

Bat sensitive (as per the ‘Nature Conservation Management Plan –

page 12 section 2 v). We recommend that on-site tests using both

luminaire types are undertaken during the projects detailed design

stage.

3.4.3 Spacing

To achieve the required light levels and uniformity luminaires shall be

spaced at 7m intervals on one side of the walkway only.






Walkway 11 28 2.6 0.09 0.25

Bollard Dimensions


Prismatic Lens Light Distribution


10



3.5 Lighting Controls and Wiring

All external luminaires shall be controlled via a photocell and time clock

arrangement complete with a central override switch located within the

security booth.

Underground wiring systems consist of XLPE/SWA/LSF Cabling drawn

into PVC flexible ducting.

3.6 Security

Luminaires will be coordinated with the site’s CCTV cameras and

security sensitive areas will be provided with increased light levels.

11



The required lighting levels and uniformity can be

achieved for the Roadways on site by using the Denver

Pole luminaire manufactured by Holophane, spaced at

20m intervals on one side of the roadway only. Where

there are parking spaces at the side of the road pole

mounted luminaires are required on both side of

roadway off-set 10m.

The required lighting levels and uniformity can be

achieved for the site’s Walkways using the Denver

Bollard luminaire manufactured by Holophane, spaced

at 7m intervals on one side of the walkway only.

The lighting strategy described in this report offers a

highly efficient external lighting system that offers good

lighting and uniformity levels that balances safe

movement, security, aesthetics and the site’s rural

location.

4. Conclusions

12



Appendix A. Proposed External Lighting Strategy Layout Drawing_______________________________________ 13

Appendices

13



Appendix A. Proposed External Lighting Strategy Layout Drawing