Abstract
Micro-milling and thin overlay, a new pavement preservation treatment developed and first implemented by the Georgia Department of Transportation (GDOT) in 2007, as an alternative pavement preservation to conventional milling and resurfacing, is used to remove and replace a thin, deteriorated open-graded surface layer (2.2 cm) without disturbing the sound underlying layer. This paper focuses on quantifying micro-milling and thin overlay’s environmental impacts by comparing conventional milling and overlay with micro-milling and thin overlay to complement the previous economic impact study. The environmental impacts are quantified using a pavement construction decision tool entitled Pavement Life-Cycle Assessment Tool for Environmental and Economic Effects (PaLATE). The results show a 60% reduction in all environmental impacts assessed, including energy usage, water consumption, and CO2 emissions largely due to the savings in asphalt needed. Results have demonstrated that this new method is a promising pavement preservation alternative that is environmentally sustainable. This paper provides quantitative comparison information useful for transportation agencies in selecting sustainable pavement preservation alternatives.
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M. Onyango, M. Woods, Analysis of the Utilization of Open-Graded Friction Course (OGFC) in the United States, Airfield and Highway Pavements 2017, Philadelphia, PA, USA, 2017, pp. 137–147.
J. Lai, M. Bruce, D. M. Jared, P. Y. Wu, S. Hines, Pavement Preservation with Micro-milling in Georgia — Follow Up Study, Transp. Res. Rec. 2292 (1) (2012). 81–87.
Y. Tsai, Y. Wu, J. Lai, G. Geary, Ridge-to-Valley Depth Measured with Road Profiler to Control Micromilled Pavement Textures for Super-Thin Resurfacing on I-95, Transp. Res. Rec. 2306 (1) (2012) 144–150.
Y. Tsai, Y. Wu, Z. Lewis, Full-Lane Coverage Micromilling Pavement-Surface Quality Control Using Emerging 3D Line Laser Imaging Technology, J. Transp. Eng. 140 (2) (2014).
Y. Tsai, Y. Wu, G. Geary, Sustainable and Cost-Effective Pavement Preservation Method: Micro-Milling and Thin Overlay, J. Transp. Eng. Part A: Systems 144 (10) (2018)
Y. Tsai, Y. Wu, A. Gadsby, S. Hines, Critical Assessment of the Long-Term Performance and Cost-effectiveness of a New Pavement Preservation Method: Micro-milling and Thin Overlay, Transp. Res. Rec. 2550 (1) (2016) 8–14.
Y. Tsai, Z. Wang, A. Gadsby, Evaluation of the Long-Term Performance and Benefit of Using an Enhanced Micro-Milling Resurfacing Method. FHWA-GA-18-1320. FHWA, U.S. Department of Transportation, Washington DC, USA, 2018.
S. Chan, B. Lane, T. Kazmierowski, W. Lee. Pavement Preservation, Transp. Res. Rec. 2235 (1) (2011) 36–12.
F. Giustozzi, M. Crispino, G. Flintsch, Multi-attribute Life Cycle Assessment of Preventive Maintenance Treatments on Road Pavements for Achieving Environmental Sustainability, Inter. J. Life Cycle Assess. 17 (4) (2012) 409–419
H. Wang, R. Gangaram, Life Cycle Assessment of Asphalt Pavement Maintenance. CAIT-UTC-013. Center for Advanced Infrastructure and Transportation, Rutgers, NJ, USA, 2014.
R. Nathman, S. Mcneil, T. V. Dam, Integrating Environmental Perspectives into Pavement Management, Transp. Res. Rec. 2093 (1) (2009) 40–49.
A. Alkins, B. Lane, T. Kazmierowski, Sustainable Pavements: Environmental, Economic, and Social Benefits of In Situ Pavement Recycling, Transp. Res. Rec. 2084 (1) (2008) 100–103.
S. Cross, W. Chesner, H. Justus, E. Kearney. Life-Cycle Environmental Analysis for Evaluation of Pavement Rehabilitation Options, Transp. Res. Rec. 2227 (1) (2011) 43–52.
M. Chester, A. Horvath, S. Madanat, Parking infrastructure: energy, emissions, and automobile life-cycle environmental accounting, Environ. Res. Letters 5 (3) (2010).
N. J. Santero, E. Masanet, A. Horvath, Life-Cycle Assessment of Pavements. Part I: Critical Review, Resour. Conserv. Recycling (55) (9–10) (2011) 801–809.
C. T. Hendrickson, A. Horvath, S. Joshi, M. Klausner, L. B. Lave, F. C. McMichael, Comparing Two Life Cycle Assessment Approaches: A Process Model- vs. Economic Input-Output-Based Assessment, 1997 IEEE International Symposium on Electronics and the Environment. ISEE-1997, San Francisco, CA, USA, 1997.
O. Jolliet, M. Margni, R. Charles, S. Humbert, J. Payet, G. Rebitzer, R. Rosenbaum, IMPACT 2002+: A New Life Cycle Impact Assessment Methodology, Inter. J. Life Cycle Assess. 8 (6) (2003) 324–330.
M. Turco, G. Brunetti, S. A. Palermo, G. Capano, G. Grossi, M. Maiolo, and P. Piro, On the Environmental Benefits of a Permeable Pavement: Metals Potential Removal Efficiency and Life Cycle Assessment, Urban Water J. (2020) https://doi.org/10.1080/1573062X.2020.1713380.
T. Wang, I.-S. Lee, A. Kendall, J. Harvey, E.-B. Lee, C. Kim. Life Cycle Energy Consumption and GHG Emission from Pavement Rehabilitation with Different Rolling Resistance, J. Cleaner Prod. 33 (2012) 86–96.
R. K. Nathman, PaLATE User Guide, Example Exercise, and Contextual Discussion, (Master thesis), University of Delaware, DE, USA, 2008.
T. J. Van Dam, J. T. Harvey, S. T. Muench, K. D. Smith, M. B. Snyder, I. L. Al-Qadi, H. Ozer, J. Meijer, P. V. Ram, J. R. Roesler, A. Kendall, Towards Sustainable Pavement Systems: A Reference Document. FHWA-HIF-15-002. FHWA, U.S. Department of Transportation, Washington DC, USA, 2015.
J. T. Harvey, J. Meijer, H. Ozer, I. Al-Qadi, A. Saboori, A. Kendall, Pavement Life-Cycle Assessment Framework. FHWA-HIF-16-014. FHWA, U.S. Department of Transportation, Washington DC, USA, 2016.
GDOT, Section 828—Hot Mix Asphaltic Concrete Mixtures, Georgia Department of Transportation, GE, USA, 2013.
Acknowledgements
This research was financially supported by the Georgia Department of Transportation and the National Science Foundation Graduate Research Fellowship. We would like to acknowledge others in the research team who helped along the way including Yi-Ching Wu, Dr. Zhaohua Wang, and Georgene Geary. We would also like to acknowledge others who helped by answering questions or providing data including Andrea Latham, Greg Kelley, Van Truong, Doug Ford, and Larry Barnes.
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Peer review under responsibility of Chinese Society of Pavement Engineering.
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Gadsby, A., Tsai, J. Environmental impact comparison of new micro-milling and thin overlay and conventional milling for sustainable pavement preservation. Int. J. Pavement Res. Technol. 14, 23–29 (2021). https://doi.org/10.1007/s42947-020-0029-9
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DOI: https://doi.org/10.1007/s42947-020-0029-9