lewisham gateway developments Lewisham Gateway limited Phase I

Lighting and External Illumination Details

Reserved Matters Application

February 2013

Lewisham Gateway – Phase 1 Stage D Lighting Design DOC-121012-LEWISHAM GATEWAY-LIGHTING Design-01 Revision P1 January 2013

HOARE LEA L I G H T I N G

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Contents 0.0

Introduction

1.0

Lighting Design Approach

3.0

Landscape & Feature Lighting

0.1

Lighting Design Objective

1.1

Overview: Circulation Routes

3.1

Tree Uplighting

0.2

Lighting and Urban Issues

1.2

Overview: Landscape & Feature Lighting

3.2

Hard Landscape Feature Lighting

0.3

Fundamental Design Elements

1.3

Overview: Entrance Lighting

3.3

Boardwalk Feature Lighting

Overview: Building Illumination

3.4

Promenade Feature Lighting

2.0 2.1

1.4

0.4

Colour Temperature/Rendering

0.5

Light Colour

3.5

‘Picture Frame’ Illumination

0.6

Tree Lighting

Circulation Routes

3.6

Pavilion Illumination

0.7

Luminaire Scale and Proportion

0.8

BREEAM Considerations

Primary Routes

4.0

Building Façade Illumination

0.9

Light Pollution

2.2

Secondary & Tertiary Routes

0.10

Guidance Codes and Standards

2.3

Key Building Entrances

4.1

Presence on the Nightscape

4.2

Lighting for Amenity

0.11

Security

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0.0

Introduction

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0.1 Introduction: Lighting Design Objective

The purpose of this document is to illustrate the ways that the Lewisham Gateway project could possibly be lit. It is intended to convey the importance of technical issues such as colour, light levels, and combined light sources and pattern. The document is designed to act as a point for discussion and for the development of a detailed lighting design. This document illustrates an approach will ensure that lighting on the site will be designed to provide a safe environment for all users, whilst also providing visual interest on both the vertical and horizontal surfaces. Care and attention must be taken at the detailed design stage to ensure that luminaires chosen are of a high aesthetic quality and blend into the environment where possible.

Lewisham Gateway: Existing Site

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0.2 Introduction: Lighting and Urban Issues

With the extension of the night-time economy and the 24 hour city, urban centres have been transformed into vibrant living and leisure spaces after dark. Lighting has become a major feature and is now a powerful tool in creating a distinctive urban identity. Good quality lighting not only allows the appreciation of skin tones, facial expression, colours and the surrounding urban fabric it can have strong benefits for wayfinding, urban area micro and macro identification, public safety and building security.

Lewisham Gateway: Proposed Site Source: PRP DTM presentation document 20.09.12

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0.2 Introduction: Lighting and Urban Issues

Better quality lighting is also proven to encourage more pedestrians onto the streets, which in turn leads to greater ‘informal surveillance’ of antisocial behaviour and less opportunity for crime. Being able to perceive people and particularly their facial expressions and feeling safe in the night scene, are two sides of the same coin. Facial recognition is the critical issue and the right levels of vertical illuminance is the key. With the appropriate level of vertical illuminance this will allow an individual to – Judge distances Identify people Discern facial expressions

Lewisham Gateway: Proposed Site Source: AL3491 Lewisham Gateway-DAP Presentation Landscape 16.11.2012

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0.3 Introduction: Fundamental Design Elements

The overall lighting approach is designed around a number of elements which when working together will provide a successful lighting framework. These simple elements will be supported with technical issues which need to be addressed such as appropriate illuminance levels/uniformity, luminaire types, lamp and luminaire families, energy efficiency and light pollution. The basis for the lighting however centres around the following key elements: - White light sources - Low energy, high efficiency light sources - Lower luminaire mounting heights - Combination and variety of luminaire types - Encouraging art within the landscape - Modern lantern style with good photometric performance - Highlighting gateways - Building/landscape Integrated luminaires - Lighting of trees - Focal points across the scheme Each of these will be illustrated, then specific areas around the scheme will be discussed indicating possible future lighting treatment.

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0.3 Introduction: Fundamental Design Elements

The latest optical systems will be used within the selected luminaires, ensuring precise photometric control and highly efficient performance, making the best use of energy. The use of high efficacy lamp types combined with optics designed for high control will, putting light where it is required whilst helping to reduce unwanted spill light and contributing to the curbing of sky glow, and therefore unnecessary energy consumption. The integration of a lighting control system will give the option for the programming of a lighting scene design, such as for the switching or dimming of zones of luminaires at certain times of evening or night. Such curfews, programmed in consultation with the local authority, may vary across the week, and throughout the year in response to available daylight and predicted local event activity. This will help to further curb unnecessary energy use, producing a more sustainable design.

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0.4 Introduction: Lamps - Colour Temperature and Rendering

High Pressure Sodium

Colour Temperature Lamp colour temperature can be used to create different moods and impressions within the space. A warm 3000K temperature would create a softer more comfortable atmosphere whilst a cooler 4200K is crisper. Using a warmer colour temperature across the developments should create a more relaxed interactive external environment. A warmer white would also be in keeping with the surrounding environments. Colour Rendering One of the fundamental requirements to achieve a pleasant lit environment is to use luminaires equipped with lamps that have a good colour rendering (Ra). These lamps allow colours to be seen more naturally and can create more comfortable environment.

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0.5 Introduction: Light Colour

Light Colour Impressions of character and impact can be expressed through the appropriate use of colour. The visual impact of coloured light changes in relation to illumination levels be that through daylight or artificial light sources. By understanding the eye’s sensitivity to colour one can utilise coloured light to create a strong visual impression that would have required a greater amount of energy to achieve in white light.

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0.6 Introduction: Tree Lighting

Soft Landscape Illumination To introduce a sense of scale throughout the development, highlighting trees and planters with buried uplights will provide subtle washes to the foliage and structure of the trees. Utilising localised, low level points of light will high light and illuminate points of interest. At night areas under trees tend to be dark and uninviting, by uplighting the trees it helps to remove dark areas throughout these spaces and creates a sense of drama. Trees vary in all shapes and sizes with blossoms and foliage changing throughout the year. In daylight trees are usually seen as relatively dark elements against a bright sky. Lighting can reverse this view at night by making them brighter against a dark background. Care should be taken, in any method case, that the beam angle is wide enough to cover the foliage without being so wide that glare is caused, louvers can be used across the face of the luminaire so that direct glare from the source is prevented without reducing the light on the tree.

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0.7 Introduction: Luminaire Scale and Proportion

Luminaire Scale The pedestrian will be the primary user within the scheme, this will allow the scale and proportion of the lighting equipment to be focused at a different level. The overall proposal would be to limit the height of any feature lighting columns and mounting height of luminaires to 6-8 metres. This enables any columns to become a unique element within the space.

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0.7 Introduction: Luminaire Scale and Proportion

Luminaire Scale The landscape lighting can be designed with a wider variety of luminaire types allowing for more visually interesting and stimulating scenes, encouraging people to use the spaces making them vibrant and well populated therefore helping with natural surveillance.

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0.8 Introduction: BREEAM Considerations

The external lighting proposed within this document have been designed to meet a number of BREEAM requirements. These will have to be carried forward into the detailed design stages of the project to ensure compliance. HEA 5 – Internal & External Lighting Levels All external lighting within this proposal have been designed to be compliant to CIBSE Lighting Guide 6 ‘The Outdoor Environment’ and relevant sections of BS5489, BS EN13201 and BS12464.

POL 7 – Reduction of Night Time Light Pollution

ENE 4 – External Lighting

All external lighting within this proposal have been designed to be compliant to ILE Guidance Notes for the Reduction of Obtrusive Light, 2005.

All external lighting proposed to access ways and pathways shall have a luminous efficacy of over 50 lamp lumens / circuit watt and a colour rendering greater than 60Ra.

It is expected that all external façade lighting is on a time-clock control system to allow for automatic switching (or dimming if relevant) between 2300hrs & 0700hrs. If appropriate, safety and security lighting can be on a time-clock control system to allow for automatic switching (or dimming if relevant) to reduce illuminance between 2300hrs & 0700hrs. This may require certain elements to be on separate lighting control circuits to allow for switching off of unnecessary lighting elements.

All external floodlighting shall have a luminous efficacy of over 70 lamp lumens / circuit watt and a colour rendering greater than 60Ra. All external uplighting shall have a luminous efficacy of over 60 lamp lumens / circuit watt. All external lighting shall be controlled via time-clock control system to allow for automatic switching (or dimming if relevant) between 2300hrs & 0700hrs.

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0.9 Introduction: Light Pollution

Light Pollution Control The general heading for the negative effects of light at night is Light Pollution but this heading actually covers four key factors. These are: Glare: Glare occurs when the site user sees light directly from the fixture (or lamp) and contrast ratios are high. Light Trespass/Encroachment: Poor lighting shines onto neighbourhood properties and into bedroom windows, reducing privacy and hindering sleep. Energy Waste: Much outdoor lighting wastes energy because it is not well-designed with light not directed where it is required. Sky Glow: A large fraction of poor lighting shines directly upwards, creating the adverse sky glow above towns and cities that washes out views of the dark night sky, taking away an important natural resource. There is new legislation as part of the ‘Clean Neighbourhoods and Environment Bill’ which will covers lighting as a social nuisance, although there are many exclusions, it does start to highlight the importance of well designed external lighting as an integral part of the modern urban landscape.

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0.10 Introduction: British Standard and Guidance

External Realm Lighting A number of documents lay down the best practice and guidance on providing sufficient and appropriate lighting for pedestrian passage and visual interest. These are: - BS5489-1:2003 - BS EN13201-2:2003 - CIE136: 2000 - CIE TECHNICAL REPORT - CIE 150: 2003 - ILE Guidance Notes for the Reduction of Obtrusive Light And if appropriate: - CIBSE Lighting Guide 6: The Outdoor Environment 1992 - CIBSE : Lighting the Environment: A guide to good urban lighting

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0.11 Introduction: Security

CCTV and lighting requirements External use of CCTV in hours of darkness requires a good exterior lighting installation. The acceptable lamp types include LED, fluorescent and high-intensity discharge. Of these three, currently H.I.D is the least expensive to operate and is most common for commercial exterior lighting applications. The critical issues which influence CCTV at night are: - Illumination levels, camera sensitivity, lens type and uniformity and mounting position. - Illumination levels must be high enough for the camera sensitivity, lens type and quality. - Positioning the light away from the camera’s field of view will reduce blooming and streaking effects in the camera image. Ideally, lights that are illuminating a camera scene should be mounted higher than the camera.

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0.11 Introduction: Security

Light and illumination Only natural light provides absolutely even illumination, although it is of course affected by clouds and shadows. All forms of artificial light suffer from the Inverse Square Law - as the distance increases from the light source so illuminance reduces. To aid security issues the lighting should provide a uniform distribution, good vertical illuminance and colour rendering properties, and to reduce areas of darkness.

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1.0

Lighting Design Approach

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1.1 Lighting Design Approach: Overview: Circulation Routes

Circulation Routes The development is likely to be used as a through-way for pedestrians as well as residents, particularly where access to Lewisham Station is concerned.

Through-ways

Lewisham Station

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1.1 Lighting Design Approach: Overview: Circulation Routes

Circulation Routes Primary Routes: Where the through-ways are likely to be used by members of the public as well as residents, and such use is accepted, illumination criteria regarding these main though-ways should be relative to the surrounding highways and pedestrian lighting levels, where a step down in lighting levels is expected. Secondary & Tertiary Routes: Where thoroughfares are used primarily by residents or similar, illumination criteria should in turn be relative to the designated primary route levels. Primary Public & Resident Thoroughfares Secondary Routes Tertiary Routes

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1.2 Lighting Design Approach: Overview: Landscape & Feature Lighting

Landscape & Feature Lighting Several areas have been identified for feature landscape lighting treatments. Hard landscape features such as steps, planters and balustrades may be illuminated or have luminaires integrated into these features in order to overlap feature lighting with lighting for safety and way finding. Such feature lighting will have a strong impact on the perceived quality of the space and its social use at dusk and after dark. Soft landscape features such as the terraced greenspace and trees may be feature illuminated to soften the landscape and night, and to prevent the landscaping becoming a ‘black hole’ on the urban nightscape. Tree uplighting in key locations will raise the perceived quality of the space as well as providing visual brightness on the vertical, whilst varied feature illumination to the green space will help provide a perception of backdrop the scene at night. Hard Landscape Feature & Wayfinding Illumination - High tier landscape feature Soft Landscape Feature Illumination - Limited public access - Private aesthetic

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1.3 Lighting Design Approach: Overview: Entrance Lighting

Entrance Lighting Key building entrances should be illuminated to levels greater than the surrounding, in order to draw the eye, highlighting their locations on the streetscape and thus aid phototropic wayfinding.

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1.4 Lighting Design Approach: Overview: Tower Illumination

Façade Illumination Integrated façade illumination may be proposed for the towers, indicating their presence on the nightscape, through for example a subtle form of visual rhythm, or a crown. Such lighting should remain within the context of the aesthetic of the development, taking into account relative intensity, colour or colour temperature, to be led by the building architecture.

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2.0

Circulation Routes

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2.1 Circulation Routes: Primary Routes

Primary Public and Resident Thoroughfares •

Lighting levels to step down from that of the adjacent main highways

•

Maximum difference may be up to two S-Class level changes in contrast

•

Luminaires may be feature columns, pole or building mounted where possible.

•

Mounting heights should be at human scale where possible.

•

All luminaires shall have high performance white light sources and efficient luminaire optics. Luminaire styling should be simple and clean so as not to detract from the architecture.

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2.1 Circulation Routes: Primary Routes

Primary Public and Resident Thoroughfares: Lighting Criteria

Projected lighting criteria subject to council stipulation, design changes and design intent.

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2.1 Circulation Routes: Primary Routes

Primary Public and Resident Thoroughfares •

‘Human’ scale columns: 4-6m.

•

35-70W CDM-T or LED typical lamp sources.

•

Light colour temperature should respond to landscape material tones.

•

8-12m typical spacing.

Sample indicative luminaire locations

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2.2 Circulation Routes: Secondary and Tertiary Routes

Secondary and Tertiary Routes •

Lighting levels to step down from that of the primary thoroughfares.

•

Maximum difference may be up to two S-Class level changes in contrast,

•

Lighting equipment to be at human scale, i.e. suitable for lower level ambient illumination, e.g. lanterns located below 6m; illuminated bollards; wall recessed floor wash luminaires and wall mounted ambient luminaires.

•

All luminaires shall have high performance white light sources and efficient luminaire optics. Luminaire styling should be simple and clean so as not to detract from the architecture.

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2.2 Circulation Routes: Secondary and Tertiary Routes

Secondary and Tertiary Routes: Lighting Criteria

Projected lighting criteria subject to council stipulation, design changes and design intent.

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2.2 Circulation Routes: Secondary and Tertiary Routes

Secondary and Tertiary Routes: Typical Surface Mounted Lighting •

Surface mounted lighting mat late the form of ambient bulkheads or optically controlled luminaires.

•

To be located at ‘human’ scale mounting heights 12m

•

Fluorescent , LED or CDM-T lamp sources

•

Light colour temperature should respond to landscape material tones.

•

8-16m typical spacing

Sample indicative luminaire locations

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2.2 Circulation Routes: Secondary and Tertiary Routes

Secondary and Tertiary Routes: Typical Bollard Lighting •

Lit bollards for ambient lighting and wayfinding.

•

Fluorescent , LED or CDM-T light sources.

•

Light colour temperature should respond to landscape material tones.

•

6-12m typical spacing.

Sample indicative luminaire locations

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2.3 Circulation Routes: Key Entrance Lighting

Entrance Illumination •

Highlighting entrances will draw the eye to the entrance, aiding phototropic wayfinding, whilst responding to the building architecture.

•

Users should be shielded from unnecessary glare.

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3.0

Landscape & Feature Lighting

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3.1 Landscape & Feature Lighting: Tree Lighting

Soft Landscape Feature Illumination •

Illumination of the soft landscape features such as trees will put visual brightness on the vertical, which will help make the space appear visually brighter with out the need for additional, ‘broad-stroke’ ambient lighting.

•

Luminaries should use efficient lamp types with long lamp-life in order to reduce additional maintenance and energy costs.

•

Feature lighting may be subject to a curfew, triggered by a lighting control system.

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3.1 Landscape & Feature Lighting: Tree Lighting

Soft Landscape Feature Illumination •

Luminaires may be ground recessed or surface mounted.

•

High efficacy, low maintenance lamp sources should be utilised; LED, florescent or CDM-T.

•

Warm white light 3000K colour temperature.

•

Anti-glare accessories should be available if required.

Sample indicative luminaire locations

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3.2 Landscape & Feature Lighting: Hard Landscape Illumination

Hard Landscape Illumination •

Whilst these spaces are to receive lighting treatments, it is not intended the spaces be occupied to any great extent at night.

•

The lighting approach will be guided by a balcony view approach.

•

Intended lighting pattern is for wayfinding purposes and a top down view, i.e. a balcony.

•

Hard landscape features such as benches and planters may be feature illuminated

•

Ambient and wayfinding illuminance should be integrated with hard landscape features such as steps, retaining walls and risers where possible.

•

Feature lighting may be subject to a curfew, triggered by a lighting control system.

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3.3 Landscape & Feature Lighting: Feature Lighting to Boardwalk

Hard Landscape Illumination: Marker Lights •

Feature lighting to boardwalk will comprise of inground marker uplights to delineate the edge of the boardwalk

•

Uplights will also illuminate and bring form to the balustrade close to the waters edge

•

Pathway lights will aid wayfinding along the path to the promenade.

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3.3 Landscape & Feature Lighting: Feature Lighting to Boardwalk

Hard Landscape Illumination: Marker Lights •

Inground uplights are recessed into the boardwalk, delineating the edge.

•

Uplights may also illuminate and bring form to the balustrade.

•

Light colour temperature should respond to feature material tones.

•

Luminaire spacing to be determined by architectural details.

Sample indicative luminaire locations

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3.4 Landscape & Feature Lighting: Feature Lighting to Promenade

Hard Landscape Illumination: Marker Lights •

Inground luminaires are recessed into the promenade, delineating the edge.

•

Spacing to be determined by visual aesthetic and wayfinding requirements.

•

Light colour temperature should respond to landscape material tones.

•

Luminaires may be marker lights or floor grazing luminaires for a visual light pattern.

Sample indicative luminaire locations

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3.5 Landscape & Feature Lighting: Feature Lighting to the ‘Picture Frame’

Hard Landscape Illumination: Uplighting to Landscape Feature •

Inground uplights are recessed into the ground close off-set to the balustrade in order to illuminate the ‘Picture Frame’.

•

Light colour temperature should respond to feature material tones.

•

Uplights should be low glare with an optical control suitable to the shape of the feature it is illuminating in order to minimise wasted light.

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3.6 Landscape & Feature Lighting: Feature Lighting to the Pavilion

Hard Landscape Illumination: Uplighting to Landscape Feature •

Inground uplights are recessed into the ground close off-set to the pavilion in order to bring vertical brightness to the structure.

•

Light colour temperature should respond to feature material tones.

•

Uplights should be low glare with an optical control suitable to the shape of the feature it is illuminating in order to minimise wasted light.

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4.0

Building Façade Illumination

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4.2 Building Façade Illumination: Façade Lighting: Presence on the Nightscape

Façade Lighting to Towers •

Feature lighting to certain facades may help form an identity on the nightscape.

•

Any such scheme should be relative and sympathetic to the surrounding environment aesthetic.

•

Lighting treatments should be integrated with façade details in order to work with the façade.

•

Light should be white or single colour.

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4.3 Building Façade Illumination: Façade Lighting: Lighting for Amenity

Façade Lighting at Human Scale •

Additional lighting located on the façade at human scale will help delineate the building profile as well as providing ambient illumination in an integrated architectural manner.

•

Luminaires should be architecturally relevant to their location.

•

Luminaires should provide lighting for wayfinding as well as providing an architectural identity on the nightscape.

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