01151225

Component

https://doi.org/10.3141/2151-05

http://scholar.google.com...ench&publication_year=2010

Each year the United States places about $100 billion of roadway construction. This level of activity suggests possibly significant sustainability implications in the construction activities for this work. One means to quantify some of these impacts is through life-cycle assessment (LCA). A review of 14 roadway construction LCA papers reveals some common ideas about the ecological impacts of roadway construction. Some key observations are that (a) the energy expended during roadway construction is roughly equivalent to that used by traffic operating on the facility for 1 or 2 years, (b) total energy use during roadway construction varies but is typically on the order of 3 to 7 TJ/lane mile, (c) total CO2 emissions during roadway construction vary but are typically 200 to 600 Mg/lane mile, (d) materials production makes up 60% to 80% of energy use and 60% to 90% of CO2 emissions associated with construction, (e) construction activities at the jobsite make up less than 5% of energy use and CO2 emissions, and (f) transportation associated with construction makes up 10% to 30% of energy use and about 10% of CO2 emissions associated with construction.

01164847

10-2602

English

pp 36-45

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309142823

Print

References (39) ; Tables (3)

Carbon dioxide; Energy consumption; Environmental impacts; Life cycle analysis; Pollutants; Road construction; Sustainable development

Construction; Energy; Environment; Highways; I15: Environment; I52: Construction of Pavements and Surfacings

TRIS, TRB, ATRI

Jan 25 2010 11:15AM

• Balancing Private and Public Interests in Public–Private Partnership Contracts Through Optimization of Equity Capital Structure
• Coordination of Design Contract with Construction Manager-at-Risk Preconstruction Service Contract
• Correlating Bid Price with the Number of Bidders and Final Construction Cost of Public Street Projects
• Determining Optimum Sample Size for Percent-Within-Limits Specifications
• Effect of Duration of Design–Build Procurement on Performance of Transportation Projects
• Effects of Project Cost Reduction Methods
• Framework for Performance-Based Contractor Prequalification
• Probabilistic Performance-Related Specifications Methodology Based on "Mechanistic–Empirical Pavement Design Guide"
• Quantifying Time and User Cost Savings for Rapid Bridge Construction Technique
• Sliding-Scale Contingency for Project Development Process
• Statistical Applications and Stochastic Analysis for Performance-Related Specification of Asphalt Quality Assurance