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Session 462 Session 462 –– Asphalt Pavement SustainabilityAsphalt Pavement Sustainability
Transportation Research Board87th Annual MeetingJanuary 13-17, 2008Washington D. C.
Designing for Sustainability: A Consultant’s PerspectiveTimothy A. Bevan, P.E. / CH2M HILL
Presentation OutlinePresentation Outline
�� What is the designerWhat is the designer ’’s perspective on sustainable s perspective on sustainable transportation?transportation?
�� Why would designers address sustainability?Why would designers address sustainability?
�� Is considering sustainability a good business model ?Is considering sustainability a good business model ?
�� What will it mean as we address sustainability?What will it mean as we address sustainability?
What is the designerWhat is the designer ’’s perspective on s perspective on sustainable transportation?sustainable transportation?
Sustainable Development: Sustainable Development:
Improving the economic and Improving the economic and
social quality of human life while social quality of human life while
limiting our impacts on the limiting our impacts on the
environment to the carrying environment to the carrying
capacity of naturecapacity of nature
Sustainable Transportation:Sustainable Transportation:
�� Business Business –– supports economic supports economic
needs; costneeds; cost--efficientefficient
�� Nature Nature –– compatible with natural compatible with natural
environment; less pollution & environment; less pollution &
use of resourcesuse of resources
�� People People –– equitable access; equitable access;
mobility choices; asset to the mobility choices; asset to the
communitycommunity
What is the designerWhat is the designer ’’s perspective s perspective on sustainable transportation?on sustainable transportation?
�� Builds on Context Sensitive Solutions ApproachBuilds on Context Sensitive Solutions Approach•• Effective Decision MakingEffective Decision Making•• Reflecting Community ValuesReflecting Community Values•• Achieving Environmental SensitivityAchieving Environmental Sensitivity•• Ensuring Safe and Feasible SolutionsEnsuring Safe and Feasible Solutions
�� Two Step Sustainability Framework:Two Step Sustainability Framework:•• Step 1: Solution to Mobility NeedStep 1: Solution to Mobility Need•• Step 2: Sustainable Infrastructure Step 2: Sustainable Infrastructure
OptionsOptions
What is the designerWhat is the designer ’’s perspective s perspective on sustainable transportation?on sustainable transportation?
Authored by CH2M HILL
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 1: Solution to Mobility NeedStep 1: Solution to Mobility Need
Examples• Jobs/housing balance in subareas
• Affordable housing in employment centers
Accommodate Needs Without
Growth in Mobility Demand
Maximize Efficiency of Existing
Transportation Infrastructure
Expand Railroad, Transit, Bicycle &
Pedestrian Infrastructure
Accommodate Mobility Demand
Without Expanding Infrastructure
Expand Streets and Highways
Infrastructure
• Promote telecommute programs
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 1: Solution to Mobility NeedStep 1: Solution to Mobility Need
Examples• Ridesharing programs
• Increased transit service levels
Accommodate Needs Without
Growth in Mobility Demand
Maximize Efficiency of Existing
Transportation Infrastructure
Expand Railroad, Transit, Bicycle &
Pedestrian Infrastructure
Accommodate Mobility Demand
Without Expanding
Infrastructure
Expand Streets and Highways
Infrastructure
• Bicycle sharing programs
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 1: Solution to Mobility NeedStep 1: Solution to Mobility Need
Examples• Incident management & response
• Advanced Traffic Management Systems
Accommodate Needs Without
Growth in Mobility Demand
Maximize Efficiency of
Existing Transportation Infrastructure
Expand Railroad, Transit, Bicycle &
Pedestrian Infrastructure
Accommodate Mobility Demand
Without Expanding Infrastructure
Expand Streets and Highways
Infrastructure
• Access Management
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 1: Solution to Mobility NeedStep 1: Solution to Mobility Need
Examples• Bikeways
• HOV/busways/BRT
Accommodate Needs Without
Growth in Mobility Demand
Maximize Efficiency of Existing
Transportation Infrastructure
Expand Railroad, Transit, Bicycle
& Pedestrian Infrastructure
Accommodate Mobility Demand
Without Expanding Infrastructure
Expand Streets and Highways
Infrastructure
• Light Rail Transit
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 1: Solution to Mobility NeedStep 1: Solution to Mobility Need
Examples• Streets and roadways
• Limited access highways/freeways
Accommodate Needs Without
Growth in Mobility Demand
Maximize Efficiency of Existing
Transportation Infrastructure
Expand Railroad, Transit, Bicycle &
Pedestrian Infrastructure
Accommodate Mobility Demand
Without Expanding Infrastructure
Expand Streets and Highways Infrastructure
• Highway grade separations
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 1: Solution to Mobility NeedStep 1: Solution to Mobility Need
Accommodate Needs Without
Growth in Mobility Demand
Maximize Efficiency of Existing
Transportation Infrastructure
Expand Railroad, Transit, Bicycle &
Pedestrian Infrastructure
Accommodate Mobility Demand
Without Expanding Infrastructure
Expand Streets and Highways
Infrastructure
Implementation Time
Capital CostEnvironmental Impacts
Institutional Requirements
Five Comprehensive ObjectivesFive Comprehensive Objectives1.1. Reduce Energy ConsumptionReduce Energy Consumption2.2. Reduce Consumption of Material ResourcesReduce Consumption of Material Resources3.3. Reduce Impacts to Environmental ResourcesReduce Impacts to Environmental Resources4.4. Support Healthy Urban CommunitiesSupport Healthy Urban Communities
5.5. Support Sustainability During ImplementationSupport Sustainability During Implementation
Sustainable Urban Streets OptionsSustainable Urban Streets Options
Two Step Sustainability FrameworkTwo Step Sustainability FrameworkStep 2: Sustainable Infrastructure Options Step 2: Sustainable Infrastructure Options
Sustainable Urban Streets OptionsSustainable Urban Streets OptionsFirst Comprehensive ObjectiveFirst Comprehensive Objective
Reduce Energy Consumption
Support non-motorized travel
Support energy efficient movement of people and goods
Use resources with lower operations and maintenance requirements
Reduce Consumption of Material Resources
Use recycled materials in construction
Require less infrastructure in solution
Increase durability and life of design solution
Sustainable Urban Streets OptionsSustainable Urban Streets OptionsSecond Comprehensive ObjectiveSecond Comprehensive Objective
Reduce Impacts to Environmental Resources
Minimize impact on natural environment
Encourage and support biodiversity
Reflect historical and cultural context
Sustainable Urban Streets OptionsSustainable Urban Streets OptionsThird Comprehensive ObjectiveThird Comprehensive Objective
Supports Healthy Urban Communities
Incorporate features that support community and livability
Incorporate features that support public services and adjacent land uses
Incorporate features that enhance public health, safety and security
Sustainable Urban Streets OptionsSustainable Urban Streets OptionsFourth Comprehensive ObjectiveFourth Comprehensive Objective
Support local economic, social and resource management needs during construction
Reduce environmental and community impacts during construction
Support Sustainability During Implementation
Sustainable Urban Streets OptionsSustainable Urban Streets OptionsFifth Comprehensive ObjectiveFifth Comprehensive Objective
Before & After – Low Energy Street Lights, Somosaguas, Madrid
Before & After – Low Energy Street Lights, Vechta, Germany
www.philips.com
www.philips.com
Reduce Energy Consumption
Use resources with lower operations and maintenance requirementsExample Options
Water-appropriate plantings
Low maintenance pavements
Low maintenance plantings
Low energy lighting
Solar power photovoltaic energy sources
Reuse of stormwater for irrigation
Mulch planting areas
Digital Sign Inventory with Geographic Positioning Systems (GPS)Digital Tree Inventory with GPS (to track maintenance, health, etc.)
Cold In Place Recycling, Eastern Washington, U.S.A.
In-Place Concrete Recycling
NCAT
www.training.ce.washington.edu
Reduce Consumption of Material
Resources
Use recycled materials in constructionExample Options
Recycled base course
Recycled asphalt
Recycled aggregates
Recycled pavers
Recycled material in sign posts
Recycled material for sign panels
Recycled material for luminare poles
Recycled material for street furniture
Recycled material for bollards
Recycled material for utility trench backfill
Recycled utility covers
Incorporation of recycled vegetative material
Recycled material in sound attenuation walls
Recycled rubber for sidewalks
Reduce Impacts to Environmental
Resources
Minimize impact on natural environmentExample Options
Storm water infiltration basins in planters
Rain gardens for storm water infiltration
Porous pavement for traffic lanes
Porous pavement in parking areas
Porous sidewalk pavements
Storm water treatment vaults
Reuse of storm water for irrigation
Planted/pervious strips
Planted/pervious medians
Tree retention
Tree pit enhancement
Natural drainage systems
Bioengineered planting strips
Interconnected bioretention swales
Soil amendments to reduce use of fertilizer
Permeable Pavers Park & Ride, Marysville, WA U.S.A.
Grass/Gravel Pavers, Mukilteo, WA, U.S.A.
Pedestrian Refuges, New York, New York, U.S.A.
Supports Healthy Urban Communities
Incorporate features that enhance public health, safety and securityExample Options
Signalized pedestrian crossings
Pedestrian refuges in medians
Sidewalk bollards to separate or illuminate potential conflict locations
Open visibility to sites and public spaces
Curbed medians at high traffic conflict locationsContinuous curbed medians to control or focus left turning traffic Driveway reduction or consolidation to minimize traffic/bicycle/pedestrian safety conflicts
Directional left-turn pockets
Signal protected turns
Illumination of traffic/bicycle/pedestrian conflict areasSurveillance cameras for increased security and/or emergency response
Business Access During Construction, SeaTac, Washington, U.S.A.
Support Sustainability During
Implementation
Reduce environmental and community impacts during constructionExample OptionsMinimization of traffic interruptions, including detoursDriveways for access to affected businessesNoise reduction (quieter equipment, reduced working hours)
Erosion and sedimentation control
Maintenance of utility services
Safe pedestrian access during construction
Reduce air emissions through restrictions on idling, use of low sulfur fuels, etc.Encourage carpooling & transit use by construction workers
Clean up of existing hazardous materials
Minimize construction "footprint"
Off-site construction worker parking
“In 1995, only 15 local governments in the United S tates were engaged in climate change protection activities, by 2006, that number had grown to 200 cities, representing 66 million pe ople.”
– Pew Center on Global Climate Change
Why would designers address Sustainability?Why would designers address Sustainability?
� Sustainability is a key issue for the public & stakeholders• Climate change, energy, water
� In response, government clients are enacting policy and legislation
� Sustainability is a key issue for clients
• To fulfill their missions and goals
• To address stakeholder pressures
“In 2006, 41 US cities had implemented sustainabili ty policies and/or programs, including New York, Seattle, Portl and, Chicago,and Austin.”
– Kent E. Portney, Tufts University
Seattle Department of Transportation MissionTo deliver a safe and reliable transportation system that enhances Seattle's environment and economic vitality.
Why would designers address Sustainability?Why would designers address Sustainability?
�� Respond to Respond to Regulations / PoliciesRegulations / Policies
Ecology EmbankmentsEcology Embankments•• WSDOTWSDOT’’ss highway runoff highway runoff
treatment BMPtreatment BMP•• No No stormwaterstormwater vault or vault or
detention pond neededdetention pond needed•• Reduce Right of Way Reduce Right of Way
needneed
Ecology Embankment, Redmond, WA, U.S.A.
Why would designers address Sustainability?Why would designers address Sustainability?
Why would designers address Sustainability?Why would designers address Sustainability?
�Industry Recognition for Sustainable Projects
2007 Globe Award for Environmental Excellence Shoreline, WA, U.S.A.
“Our strategy is to infuse CH2M HILL with the sustainability-inspired principles, knowledge, technologies, tools, and methods that will lead to better management of our company and better long-term solutions for our clients.”
- Ralph Peterson, CH2M HILL CEO
�� New business opportunitiesNew business opportunities
Is Considering Sustainability a Good Is Considering Sustainability a Good Business Model?Business Model?
�� New business opportunitiesNew business opportunities
Is Considering Sustainability a Good Is Considering Sustainability a Good Business Model?Business Model?
Traffic Safety
Transit
DecisionAnalysis
Context Sensitive Solutions
ProgramManagement /
GEC
APD /Design/Build
1990 2000 2008
New Transportation Market Opportunities
SustainableTransportation
Solutions
TravelDemand
Management
�� Enables market differentiationEnables market differentiation• Strategic - response to global
trends
• Innovative - break away from traditional solutions
• Effective - over the long term
• Beneficial - to people, business, and nature
Is Considering Sustainability a Good Is Considering Sustainability a Good Business Model?Business Model?
StrategicInnovativeEffectiveBeneficial
�� Benefit and ValueBenefit and Value --added added service to customers yields service to customers yields followfollow --on businesson business
Porous Concrete SidewalksPorous Concrete Sidewalks•• Reduce need for Right of WayReduce need for Right of Way•• Natural drainage Natural drainage –– no vault or no vault or
detention ponddetention pond•• Green Material Green Material –– made of made of
recycled material and can be recycled material and can be recycledrecycled
•• Pedestrian facilityPedestrian facility Porous Concrete Sidewalks, Federal Way, WA
Is Considering Sustainability a Good Is Considering Sustainability a Good Business Model?Business Model?
�� Evaluating costEvaluating cost --effectiveness & lifeeffectiveness & life --cycle cost savingscycle cost savings
What will it mean as we address What will it mean as we address Sustainability?Sustainability?
�� Allowing flexibility to fit customer and contextAllowing flexibility to fit customer and context
What will it mean as we address What will it mean as we address Sustainability?Sustainability?
�� Additional research and development effortAdditional research and development effort
What will it mean as we address What will it mean as we address Sustainability?Sustainability?
What will it mean as we address What will it mean as we address Sustainability?Sustainability?
�� Demonstration Project Demonstration Project –– SR 520SR 520
Quiet (Rubberized) PavementsQuiet (Rubberized) Pavements•• Less road noiseLess road noise•• Reduces noise at the sourceReduces noise at the source•• No noise walls, No noise walls, bermsberms or or
vegetation required to mitigate vegetation required to mitigate noise impactsnoise impacts
•• Decreases landfill wasteDecreases landfill wasteQuiet Pavement, Bellevue, WA, U.S.A.
Conclusions Conclusions –– Designing for Designing for SustainabilitySustainability
�� Global and urban trends drive sustainabilityGlobal and urban trends drive sustainability�� Sustainability should be a comprehensive, 2Sustainability should be a comprehensive, 2 --step step
approachapproach•• Sustainable solutions should include demand managem ent, Sustainable solutions should include demand managem ent,
efficiency, and supply elements efficiency, and supply elements •• Sustainable infrastructure options provide another level for Sustainable infrastructure options provide another level for
addressing sustainabilityaddressing sustainability
�� Sustainability is a great business opportunity for our Sustainability is a great business opportunity for our industryindustry
Sustainable Solutions Sustainable Solutions -- ItIt ’’s the right thing to do!s the right thing to do!
Timothy A. Bevan, P.E.Timothy A. Bevan, P.E.Tim.Bevan@ch2m.comTim.Bevan@ch2m.com425.453.5000425.453.5000
CH2MCH2M HILL, INC.HILL, INC.1100 112th Avenue NE1100 112th Avenue NEBellevue, WA 98004Bellevue, WA 98004
Questions?Questions?
CH2MCH2M HILLHILL ’’ssSustainable Solutions Website:Sustainable Solutions Website:
http://www.ch2m.com/corporate/services/sustainable_ solutions/http://www.ch2m.com/corporate/services/sustainable_ solutions/
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