Ballston Central Business Improvement District Lighting Design Concepts 1
EXISTING STREET LIGHTING AND FURNITURE INVENTORY Wide range of styles, materials and finishes No standards holding it together 2
Ballston Central Business Improvement District Exisiting Streetscape Lighting Conditions 3
Existing Streetscape Lighting Conditions and Operating Profile Arlington County provides Code compliant illumination on streets, crosswalks and sidewalks, using state-of-the art technologies and equipment. A variety of street lighting systems to accomplish these tasks. Ongoing technology and hardware upgrades. Operation and maintenance of the systems. Storage for poles and lighting fixtures. 4
Existing Streetscape Lighting Elements The principal Arlington lighting equipment standards include: A primary workhorse streetlighting pole and luminaire from Philips Lighting, from their RoadStar series (image to right). It utilizes LED technology and is a standard product from the manufacturer. A decorative streetlighting pole and luminaire which is used in districts where the pseudo-historic fixture vocabulary is desired (image to right). The pole and fixture is manufactured by Hadco and is from their post-top series. Most existing product has been, or is in the process of being, retrofitted with LED sources. A decorative pedestrian-scaled pole and luminaire which is used in districts where the pseudo-historic fixture vocabulary is desired (image to right).. The pole and fixture is manufactured by Hadco and is from their post-top series. Most existing product has been, or is in the process of being, retrofitted with LED sources. Control of most all LED-based lighting fixtures is through a wireless remote system called Sentinel, manufactured by Revolution Lighting Technologies. 5
Existing Streetscape Lighting Elements Lighting for streets vehicular Preferred Solid State LED cobra head Preferred pole and pole arm Established maintenance procedures 6
Existing Streetscape Lighting Elements Lighting for streets vehicular (decorative) LED light source engine 7
Existing Streetscape Lighting Elements Lighting for streets vehicular and pedestrian (decorative) 8
Existing Streetscape Lighting Elements Lighting for streets pedestrian (decorative) 9
Existing Streetscape Lighting Elements Lighting for streets vehicular and pedestrian (decorative) Retrofitted Decorative luminaires have been routinely retrofitted with LED clusters. The source clusters can be quite glarely in areas with little other contributing light. LED Retrofit module Exisiting Streetscape Lighting Elements Principal Decorative Lighting System 10
Existing Streetscape Lighting Elements Lighting controls Time-of-day scheduling Remote Digital Monitoring (RDM) Smart City issues 11
Ballston Central Business Improvement District Arlington Guiding Principles 12
Arlington Guiding Principles Safe Enhance public safety Improve or enhance accessibility Sustainable Reduce energy consumption and carbon footprint Minimize uplight Compatible Improve community environment via streetscape Smart Improve technology to align/meet County goals Maintainable Reduce maintenance and improve reliability Limit inventory space requirements Cost Effective Minimize operating and life cycle costs 13
Arlington Guiding Principles Review of Ballston CBID lighting concepts and their alignment with the principles Safe Enhance public safety Improve or enhance accessibility CBID Lighting Concept approaches: Inproved illuminance levels for both vehicular and pedestrian traffic Heightened uniformity of light Enhanced visibility through reduction in direct source glare Lack of glare enhances wayfinding Improvements in light source color rendering Accessibility guidelines address uniformity, glare control and color rendering 14
Arlington Guiding Principles Review of Ballston CBID lighting concepts and their alignment with the principles Sustainable Reduce energy consumption and carbon footprint Minimize uplight CBID Lighting Concept approaches: LED sources used for all proposed luminaires, reducing energy consumption The use of LED sources allows for more flexibility in controls, further managing energy needs after hours, with possible additional energy savings. All fixtures would be cutoff luminaires, almost eliminating direct upward spill light and greatly minimizing light trespass in more sensitive residential areas. 15
Arlington Guiding Principles Review of Ballston CBID lighting concepts and their alignment with the principles Compatible Improve community environment via streetscape CBID Lighting Concept approaches: The use of a pedestrian pole and fixture provides human scale and community enrichment. Pole and fixture aesthetic helps in establishing neighborhood character Improved illuminance levels and uniformity will enhance the nighttime community setting Enhanced visibility through reduction in direct source glare fosters wayfinding Improvements in light source color rendering is a strong neighborhood benefit 16
Arlington Guiding Principles Review of Ballston CBID lighting concepts and their alignment with the principles Smart Improve technology to align/meet County goals CBID Lighting Concept approaches: LED sources used for all proposed luminaires are ideal sources for remote managed lighting control All pole/luminaire assemblies being considered can be provided with Smart City compatible technologies or be wired/piped for future adaptation Modular components provide future flexibility with improvements in technology 17
Arlington Guiding Principles Review of Ballston CBID lighting concepts and their alignment with the principles Maintainable Reduce maintenance and improve reliability Limit inventory space requirements CBID Lighting Concept approaches: LED sources have inherently longer life, extending maintenance cycles and improving long term operational profiles. Well designed LED source lighting fixtures are quite reliable All lighting fixtures being considered will use modular components, easing maintenance demands LED modules and driver assemblies are relatively small and easy to store 18
Arlington Guiding Principles Review of Ballston CBID lighting concepts and their alignment with the principles Cost Effective Minimize operating and life cycle costs CBID Lighting Concept approaches: Operating costs are reduced using LED sources over older technology legacy sources Due to their inherent construction quality and availability of modular components, life cycle cost profiles are attractive. 19
Ballston Central Business Improvement District Alternative Streetscape Lighting Upgrades 20
Approaches for the Business Improvement District Lighting Program Philips RoadStar Alternative A - Dedicated Pedestrian Streetscape Lighting Assemblies This approach suggests using the Arlington standard pole mounted vehicular light - namely, the Philips RoadStar Series (image to right) - to provide street illumination; and develop a completely different, appropriately scaled pedestrian light pole assembly. This approach would mostly divorce the pedestrian pole vocabulary from the high-pole, functional vehicular system, and allow more stylistic and interpretive selection at the scale that maters most for the District identity. Control of pedestrian lighting equipment, as with the vehicular light poles, would be managed through Arlington s Sentinel wireless control system, already in use throughout. The following pages illustrate a variety of pedestrian pole aesthetics that could be discussed for the District. Issues and questions to consider in review and assessment of these options include: Does the aesthetic reinforce the District s message & specific sense of place? Will the optical choices available provide desired functional illumination while creating a comfortable visual environment for the pedestrian? Do the geometries available provide the needed flexibility and robustness to serve long term needs? Can other specialty items (the branding graphic powered, digital, or whatever format) mount successfully to the pole(s)? Can all manner of wireless communication be accommodated? Is long-term availability an issue? Is operation or maintenance compromised? 21
Existing Streetscape Lighting Elements Principal Street Lighting System 22
Dedicated Pedestrian Streetscape Poles Escofet Bali Series 23
Dedicated Pedestrian Streetscape Poles Landscape Forms Rama Series 24
Dedicated Pedestrian Streetscape Poles Landscape Forms Leo Series 25
Dedicated Pedestrian Streetscape Poles Escofet Tronic Series 26
Dedicated Pedestrian Streetscape Poles Eaton Arbor Series 27
28
Specialty Poles These would/could be used selectively at parks, plazas or in other specialty zones. 29
Approaches for the Business Improvement District Lighting Program Alternative B - Combination Vehicular/ Pedestrian Streetscape Poles Assemblies This approach focuses specifically on using a common fixture and pole language for both the vehicular and pedestrian solutions. In some sense, Arlington s current decorative, pseudo-historic fixtures utilize this approach. Both dedicated pedestrian poles and vehicular/pedestrian combination pole assemblies would occur. Control of both the vehicular and pedestrian lighting equipment would come through Arlington s Sentinel wireless control system. The following pages illustrate several vehicular/pedestrian pole/fixture combinations that could be discussed for the District. Issues and questions to consider in review and assessment of these options include: Does the aesthetic reinforce the District s message & specific sense of place? Do the geometries available provide the needed flexibility and robustness to serve long term needs? Can the pedestrian scaled version of the fixture(s) mount to both low and high poles, thereby having fewer poles? Can other specialty items mount to the combination poles? Can all manner of wireless communication be accommodated? Is long-term availability an issue? Is operation or maintenance compromised? 30
31
32
Assessment of application options for preferred lighting vocabulary Alternative A - Dedicated Pedestrian Streetscape Lighting Assemblies Alternative B - Combination Vehicular/ Pedestrian Streetscape Poles Assemblies 33
Blow-up of segment - Wilson Boulevard from North Randolph to Stuart Typical Ballston corridor - Wilson Boulevard from North Randolph to North Glebe 34
Blow-up of segment - Wilson Boulevard from North Randolph to Stuart Wilson-Stuart intersection Wilson-North Randolph intersection 35
Existing Arlington standard Philips Lumec RoadStar roadway/street lighting fixture Existing Arlington standard GE cobrahead roadway/street lighting fixture 36
Existing Arlington standard GE cobrahead roadway/street lighting fixture Dual-directional traffic signal with cross-walk and street lighting Existing acorn style pedestrian pole Ground mounted tree uplighting in median Dual-directional traffic signal and light standard Wilson mid-block 37
Typical existing pedestrian-scaled light poles Wilson mid-block 38
Typical existing pedestrian-scaled light poles Wilson mid-block 39
Existing Arlington standard GE cobrahead roadway/street lighting fixture Ground mounted accent floodlighting for retail crossing bridge mounted within median Ground mounted tree uplighting in median Typical mid-block conditions (Wilson near Stuart) 40
Lighting Alternate A1 Street Section Blow-up 22.5 45 45 22.5 Single Head Pedestrian Scaled Area Light (12-14 ) Single Head Street Light Assembly (30 ) 45 22.5 22.5 45 41
Lighting Alternate A2 Street Section Blow-up 34 68 34 Single Head Pedestrian Scaled Area Light (14-16 ) Single Head Street Light Assembly (30 ) 68 34 34 68 42
Lighting Alternate B Street Section Blow-up 45 45 45 Single Head Pedestrian Scaled Area Light (12-14 ) Two Head Street Light and Pedestrian Scaled Area Light Assembly (30 and 12-14 ) 45 45 43
Discussion 44
45
Lighting for Streetscapes 49
Lighting for Streetscapes 50
Lighting for Streetscapes 51