TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Impact on Emissions and Energy Consumption of Evolving Pavement Material Practices from 1990 to 2010: A Washington State Department of Transportation Case Study
Cover of Impact on Emissions and Energy Consumption of Evolving Pavement Material Practices from 1990 to 2010: A Washington State Department of Transportation Case Study

Accession Number:

01519317

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Greenhouse Gas (GHG) emissions and energy consumption are growing national and international concerns leading to an increase in attention to life cycle analysis (LCA) in multiple areas. There is a significant effort in the pavement industry to develop LCA, use it as a decision-support tool, and to quantify the environmental benefits of common pavement practices. Here, Roadprint, an online LCA tool (http://clients.paviasystems.com/wfl), is used to quantify the greenhouse gas (GHG) emissions and energy consumption changes for four basic pavement materials practices at the Washington State Department of Transportation (WSDOT) between 1990 and 2010: (1) use of warm mix asphalt (WMA) in place of conventional hot mix asphalt (HMA), (2) incorporation of reclaimed asphalt pavement (RAP) in HMA pavement mixtures, and (3) use of fly ash and (4) slag as portland cement substitutes in portland cement concrete (PCC) pavements. Results show that 2010 realized savings over 1990 baseline values range from 4-22% for GHG emissions, and 5-18% for energy consumption depending upon practice. Ultimate savings based on current technology are potentially higher in the 17-44% range for GHG emissions and 12-32% range for energy consumption. These savings constitute about 0.01-0.1% of the total WSDOT fleet emissions and energy consumption if the WSDOT fleet and vehicles driving on WSDOT pavements are considered. Nonetheless, these savings are real and permanent and understanding their magnitude can help in decision-making.

Supplemental Notes:

This paper was sponsored by TRB committee AFD10 Pavement Management Systems.

Monograph Accession #:

01503729

Report/Paper Numbers:

14-3202

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Muench, Stephen T
Martinez Caraballo, Eva
Lin, Yen Yu
Gutub, Sohaib
Willoughby, Kim
Uhlmeyer, Jeff

Pagination:

23p

Publication Date:

2014

Conference:

Transportation Research Board 93rd Annual Meeting

Location: Washington DC
Date: 2014-1-12 to 2014-1-16
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Environment; Highways; Pavements; I15: Environment; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2014 Paper #14-3202

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Jan 27 2014 3:06PM