Green Roads

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Green Roads

• Steve Muench

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I-395 through Overtown, FL
Picture from Windows Live Search Maps

• Overtown. Miami, FL.
• Peak population 40,000
• Current population 8,000

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Roads use a lot of materials every year.
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Energy costs serious money.
From Wall Street Journal, 3 Jan 2008, p.A1.
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SR 20 through North Cascades National Park, WA
Octavia Blvd., San Francisco, CA
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There is a strong case for sustainable practices
in transportation making a big difference.
2000 CO2 Emissions by Source Industrialized
Countries
2006 U.S. Energy Use
Transportation Energy Data Book (U.S. DOE)
2007 Little Green Data Book (World Bank)
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More specifically, sustainable choices in
transportation construction can make a big
difference.
2006 Non-Residential Construction Spending from
the U.S. Census Bureau
100 billion
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Sustainability

• Goal
• Sustain economic prosperity and a high quality of
  life for all while protecting the natural systems
  of the planet.
• Key Components
• Economic
• Environmental
• Social

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Support for sustainability everywhere.
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Making Sense of SustainabilityGreen Roads
Rating Standard
What is it? A rating system designed to
distinguish high-performance sustainable new or
redesigned/rehabilitated roads. What does it
do? It awards credits for approved sustainable
choices and can be used to certify projects based
on total point value. How does it
help? Provides a straightforward means of
understanding and quantifying sustainability in
roadway design and construction.
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LEED(Leadership in Energy and Environmental
Design)
A nationally accepted benchmark for the design,
construction, and operation of high performance
green buildings. LEED gives building owners and
operators the tools they need to have an
immediate and measurable impact on their
buildings performance. -U.S. Green Building
Council

• LEED certification standards
• New Commercial Construction and Major Renovation
  Projects
• Multiple Buildings and On-Campus Building
  Projects
• Existing Building Operations and Maintenance
• Commercial Interiors Projects
• Core and Shell Development Projects
• Homes
• Neighborhood Development
• Schools

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200
LEED for new construction buildings
Distributionby geography
100-199
as of 07/06
50-99
20-49
1-19
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Green Roads is a rating system designed to
distinguish high-performance sustainable new or
redesigned/rehabilitated roads. It awards
credits for approved sustainable
choices/practices and can be used to certify
projects based on point value.
Developing Partnerships
TransNow, CH2M Hill, University of Toledo, Sowing
Green
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Green Roads Categories
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Materials Resources (MR)
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Construction Waste Management
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Construction Waste is a big contributor to the
municipal waste stream.
Most estimates place construction waste at
between 20 and 40 of the municipal waste stream
Graph from the California Integrated Waste
Management Board (CIWMB) Statewide Waste
Characterization Study (2004)
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We have done well recycling HMA and PCC as part
of road construction.
Asphalt and Concrete Recycled 1999 to 2004
HMA/PCC recycling 51 of diverted waste
Graph from the Washington State Department of
Ecology
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But we can do better.
Origins of the 3.2 billion tons/yr of aggregate
used in the U.S.
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We can reduce the amount to landfills, and
increase the amount to high-value surfacings.
Destination of Recovered HMA
Destination of Recovered PCC
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Example MR Credit
Recycled Content 4 Credits
One credit Use recycled content to a minimum of
20 in the HMA/PCC and 40 of the total material
in the structure if base course is included in
the project. Two credits Use recycled content
to a minimum of 30 in the HMA/PCC and 50 of the
total material in the structure if base course is
included in the project. Three credits Use
recycled content to a minimum of 40 in the
HMA/PCC and 60 of the total material in the
structure if base course is included in the
project. Four credits Use recycled content to
a minimum of 50 in the HMA/PCC and 70 of the
total material in the structure if base course is
included in the project.
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Construction Activities (CA)
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Diesel exhaust harms health more than any other
air pollutant in Washington State.
-Washington State Department of Ecology
Sources of Diesel PM2.5 in Washington State
(2002)
Source Washington State Department of Ecology,
2006
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Example CA Credit
Reduce Diesel Emissions 1
Credit
50 of the non-road diesel engine fleet used in
construction should have installed emission
reduction exhaust retrofits and add-on fuel
efficiency technologies complying with the EPA
Tier 4 emission standard.
Credit limit is based on the Diesel Particulate
Emission Reduction Strategy for Washington State
as set forth by the Washington State Department
of Ecology and as described in Washington
regulations.
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This generally means retrofit or replacement.
Number of Heavy-Duty Non-Road Diesel Engines that
are Potentially Suitable for Exhaust Retrofits
(MY 1996 or newer, 175 hp)
11,366 engines in construction and mining
Number of Heavy-Duty Non-Road Diesel Engines that
are Potentially Suitable for Replacement (MY
1995 or older)
3,387 engines in construction and mining
Graphs from the Diesel Particulate Emission
Reduction Strategy for Washington State,
Washington DOE, December 2006.
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Certification Levels
19-25 credits
26-31 credits
32-37 credits
38 credits
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Benefits

• More sustainable roads
• Specific benefits
• Provide a system which defines basic roadway
  sustainability attributes
• Allow a greater audience to participate in
  roadway sustainability in a meaningful way
• Allow sustainability tradeoffs and decisions to
  be made in a systematic manner
• Provide means for sustainability assessment
• Confer marketable recognition on sustainable
  roadway project
• Allow for sustainability innovation because it is
  end-result oriented

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Where do we go from here?

• Fully develop each item
• Calibrate rating system
• Get industry/agency participation

See at www.greenroads.us