Color Coded Alternative Comparison Systems for Pavements

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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

[email protected]

909.869.2487

Color Coded Alternative Comparison Systems for Pavements

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