Excelsior Lighting and Pedestrian Safety Project

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Excelsior Lighting and Pedestrian Safety Project
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The Excelsior Lighting Group

• Oscar Jauregui
• Severin Saenz
• Michael Boo

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Outline

• Introduction
• Excelsior Action Group
• Research Question
• Research Methods
• Lighting Crime Analysis Findings
• Lighting Fixture Options
• Recommendations

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• EAG started as a pilot commercial corridor
  revitalization project
• Goals identified through community process
• - Physical Improvements- Beautification
• - Economic Development- Small Business Support
• Priorities
• - Youth Activities
• Public Safety
• - Cleanliness and Beautification
• - Jobs

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Research Question

• Can an increase in pedestrian lighting be used to
  decrease real and perceived fears of crime in
  order to promote community safety and
  neighborhood vibrancy?

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Methods

• Literature review
• Lighting stock survey
• Compare and contrast lighting stock with crime
  data

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Literature review

• How can Street lighting be used to promote public
  safety
• Broken Window
• CPTED
• San Franciscos Better Streets Plan

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How can increased pedestrian lighting create
safer communities?

• Reinvestment into the community
• Lighting improvements may encourage increased
  street usage which intensifies natural
  surveillance.
• The change in routine activity patterns works to
  reduce crime because it increases the flow of
  potentially capable guardians

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Broken Window

• Petty crimes are seen as a violation of social
  norms and controls that may perpetuate crimes as
  individuals sense a disinvestment in the
  community and decreasing chance of getting caught
• Enhanced visibility and increased street usage
  may interact to heighten possibilities for
  informal surveillance

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Crime Prevention through Environmental Design

• Provide lighting systems which provide night time
  vision for motorists to increase the visibility
  of pedestrians, other vehicles and objects which
  should been seen and avoided.
• Design lighting systems for pedestrians,
  homeowners and business people to permit
  pedestrians to see one another, and to see risks
  involved in walking at night.
• Provide lighting systems which will enhance the
  ability for surveillance and observation.
• Provide lighting systems that minimize glare,
  shadow, light pollution and light trespass.

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Better Streets Planslighting standards

• Street lighting fixtures illuminate both roadway
  and sidewalk are typically 20 to 30 high
• Pedestrian-scale lighting fixtures, typically 12
  to 15 high, illuminate pedestrian-only walkways
  and provide supplemental light for the sidewalk.
• Suggested lighting strength for commercial
  throughway
• 0.6 to 1.7 Foot-candles
• Current 0.5 Foot-candles under street light

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Lighting Stock SurveyCrime Analysis
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Excelsior Boundary
Neighbors five districts Bound by two major
freeways
Crocker Amazon
Source The City of San Francisco GIS Data
Catalog http//gispub02.sfgov.org/website/sfshare/
index2.asp
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Field Survey Location
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• Current Lighting Stock Mission St

• PGE provided map of current street light lamp
  posts
• 30ft high
• Spacing 65ft apart
• Secondary Lighting is inconsistent
• Floodlights and low illumination lighting
  fixtures, front window store merchandising
  illumination

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• Current Lighting Stock Mission St /Geneva Ave

• PGE provided map of current lights
• Spacing 85ft 95ft apart
• 20 ft projection, 45ft gap
• Secondary Lighting
• is inconsistent
• Front window store merchandising illumination
• Houses set back far from street
• Porch lights only light the porch
• Not a good source of pedestrian lighting

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Crime Analysis

• -Data is for the year 2008
• -The statistics are specific to
• Mission St Geneva Ave
• -Night (6pm 6am)
• -53 of crime takes place during
• night
• 53 of Violent crime occurs at night
• -Stats on 90 look back for the entire
• Excelsior District.
• -Captured on 10/27/09

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Lighting Crime

• - Icons represent crimes that occur at night only
• -Between Cotter
• Francis 150 ft gap
• Francis to Santa
• Rosa 107 ft gap
• -San Juan to Norton
• 135 ft gap

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Lighting Crime

• - Icons represent crimes that occur at night only
• Seneca 90ft gap
• Crime cluster at Mission Geneva
• Icons displayed here are crimes that only occur
  at night

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Corner of Mission Geneva
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Mission St -930 pm -No foot traffic -Low
commercial activity -Pedestrian light is
absent
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• Geneva Ave 10pm
• -Absent foot traffic
• -No bustling nightlife activity
• -Night retail businesses do not cluster
• -Tattoo parlor attracts intimidating activities

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Lighting Fixture Options
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Light emitting diode (LED) vs High pressure
sodium (HPS)

• HPS are the current industry standard however LED
  lamps are now becoming more desire with increase
  in energy saving and color rendering

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Light Emitting Diode (LED) Street Lights

• Provide a bright whiter light, assisting in
  public safety
• 40 percent more efficient than traditional high
  pressure sodium vapor lights
• Provide a better lighting performance
• Energy efficient

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Light Emitting Diode

• Energy Consumption
• 50 - 70 less
• Life Span
• LED lamps have life spans
• twice that of HPS lamp
• Color rendering
• LED lamp use more light from the light
  spectrum to create a white light that is believed
  to be more desirable than the yellowish light
  given off by HPS lamps

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Drawbacks to LED lamps

• LED lamps at the current rate are considerably
  more expensive to purchase and install. However,
  the saving in maintenance and energy consumption
  look to out weigh the initial cost.
• As the technology become more available the cost
  of LED lamps have dropping

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Fixture Options

• Motion censored lighting and Outdoor Lighting
• Simple efficient ways of lighting.
• Excelsior District Community Lighting and Safety.

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Decorative Poles

• -Broadway Aluminum
• -Charleston Aluminum
• -PGE Approved and Recommended
• -Low Maintenance (PGE)
• - Superior Performance (PGE )

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Bollard Lighting Styles

• LED Bollard Lights LBLK2-3
• LED Bollard Lights LBLK1-3
• Widely Used in streets, commercial areas,
  residential areas, plaza squares.
• Height 600mm-800mm
• Decorative styles and lighting.

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Walk and Drive Over Light

• 0.6 walk over light 1117AZ
• 0.8 walk and drive over light 4403BK
• Efficient Ground Lighting for Pathways and
  Sidewalks
• - Upper illumination for public safety
• - Highlights Surrounding buildings and
  pedestrian Signs.

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Recommendations

• -Lighting Campaign where residents and business
  
• owners are encouraged to keep lights on at night
  and
• install lighting fixtures.
• Fill in lighting gaps where crime clusters at
  night
• Retrofit current PGE lights for a back flip
• to better illuminate sidewalk
• Installing light fixtures along the Mission and
• Geneva Corridor
• Use PGE as a resource to design the
• outdoor lighting

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• THANK YOU