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Color-Coded Design AlternativeComparison System for Pavements
Dragos Andrei
Green Up
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My Street
No maintenance in 3+ years Surely not high priority in the Citys PMS 1.5 inches of AC over subgrade
What can be done?Who will fix this road?When? How much it will cost?
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California Local Roads Conditi 81% of California roads are managed by cities an
counties
On average, these pavements are in critical co
The condition continues to decrease from one yenext
The funding available for pavements is less thanwhat would be needed to maintain the current c
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Source: California Local Streets and Roads Needs Assessment, January
http://www.savecaliforniastreets.org/
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California State Roads
Condition
50,000 lane miles to maintain
53% in good to excellent condition
22% in need of maintenance
25% with structural deficiencies or poor ride Overall condition in 2011 better than 2007
Source: Caltrans State of the Pavement 2011,
http://www.dot.ca.gov/hq/maint/Pavement/Pavement_Program/PDF/
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Bottom Line We inherited a vast road network:
~ 50,000 lane miles state roads
~ 200,000 lane miles local roads
More than 50% of these pavements are at risk
For local roads, the funding available for maintenance anrehabilitation is less than half the funding required to macurrent condition.
Traffic (demand) will continue to increase
$$$ Needs will continue to increase
Not Sustain
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Sustainability = Future generations
Responsibility beyond our life span
Responsibility beyond our species
Maintaining the delicate balance of
forces and factors that make theworld a livable place: Social,Economic, Environmental
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Long-Lasting Low-Maintenance Low Emissions/Energy
Recyclable
Permeable
Cool Quiet
Complete
This cat has 20 mthe budget to desi
pavem
Sustainable Pavements
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Pavement Sustainability Evaluatio
and Implementation Tools Rating and Certification Systems: LEED,
Greenroads, Invest, others
Environmental Protection Regulations Legislature: e.g. use of RAP, rubber, in H
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Green Up
Design alternative comparison system (nrating system)
Simple and fast by design: software appli
For pavement engineers in the design/demaking phase
For those that do not have the resources tmore complex tools like rating systems
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Simple
Interface
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The
Green Up
Cube
MATERIALS T
WATER
HEAT
NOISE
LCC
SUSTAINABLE ---------------------------- NOT SUST
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Material CategoriesRECYCLED PLACERECYCLED
IMPORT
RECYCLABLE
EXPORT
WASTE
VIRGIN
MATERIALS
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Recyclable Import
RAS: Recycled Asphalt Shingles
Crumb Rubber from Waste Tires
Blast Furnace Slag
Coal Ash
Silica Fume
Others
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Example
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Emissions/Energy Consumptio Energy = fuel consumption = fossil fuels = emis
Greenhouse Gases (GHG): water vapor, carbon methane, nitrous oxide, ozone, CFC, other
Carbon Footprint: measure of carbon dioxide anmethane emissions expressed in CO2e (carbon dequivalent for 100 years global warming potenti
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Source: The Environmental Road of the Future, Colas 2003
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Source: The Environmental Road of the Future, Colas 2003
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Technology Categories: Cold M&R strategies: emulsion-based seals, co
recycling, full-depth reclamation, soil stabilizati
Warm: warm mix asphalt, maintenance treatmwith warm mix additive, etc.
Hot: hot in-place recycling, hot mix asphalt, et
Big Foot: portland cement concrete (due to thmanufacturing of cement and steel)
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Example
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Surface
Properties Permeable
Cool
Quiet
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Life Cycle Cost
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LCC Categories
!"#$%& ($)"
*+,"%-.$"#/
0"12-.+.3
4 56 3"+.#
7-.1+8
9 56 3"+.#
(-&% ($)"
9 :6 3"+.#
;"
9
>$%? *-#, "#$% &''$ &''$ ()*$ +)
@-A".+," *-#, &''$ ()*$ +),#$ +-(-B *-#, ()*$ +),#$ +-.#$ +),#$ /0
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Example
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Results Comparison
Mill and Fill 3in Mill 1.5 in, CIR 3 inOverlay 1.5 in
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Green Up
Under development
Desired features:
! Quick sustainability comparison/assessme
!
Learning resource for our fast times! Promote sustainable practices
! Complementary to existing rating/certificasystems
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More Information
Dragos Andrei
909.869.2487