Greenhouse gas emissions from road construction: An assessment of alternative staging approaches |
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| Institution: | 1. DICAM – Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale e dei Materiali, Scuola Politecnica, Università degli Studi di Palermo, Palermo, Italy;2. DEIM – Dipartimento di Energia, Ingegneria dell’Informazione e Modelli Matematici, Scuola Politecnica, Università degli Studi di Palermo, Palermo, Italy;1. OHL School of Construction, College of Engineering and Computing, Florida International University, 10555, EC 2900, West Flagler Street, Miami, FL 33174, United States;2. Department of Civil and Environmental Engineering, College of Engineering and Computing, Florida International University, 10555, EC 3601, West Flagler Street, Miami, FL 33174, United States;1. Faculty of Applied Engineering – Constructions, University of Antwerp, Rodestraat 4, 2000 Antwerp, Belgium;2. Agency for Roads and Traffic – Road Engineering Department, Flemish Government, Olympiadenlaan 10, 1140 Evere, Belgium;3. Departement Engineering Management, Faculty of Applied Economics, University of Antwerp, Prinsstraat 13, 2000 Antwerp, Belgium;1. School of Highway, Chang''an University, Xi''an 710064, China;2. Xi''an Highway Institute, Xi''an 710065, China;1. Graduate Research Assistant, Department of Civil Engineering, Indian Institute of Technology Kharagpur, West Bengal 721 302, INDIA;2. Graduate Research Assistant, Department of Civil Engineering, Indian Institute of Technology Kharagpur, West Bengal 721 302, INDIA;3. Assistant Professor, Department of Civil Engineering, Indian Institute of Technology Kharagpur, West Bengal 721 302, INDIA;1. Key Laboratory of Road and Traffic Engineering of the Ministry of Education, School of Transportation Engineering, Tongji University, Shanghai 201804, China;2. Sichuan Egang Highway Construction Co., Ltd, Chengdu, Sichuan 610041, China |
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| Abstract: | The greenhouse gas (GHG) emissions associated with road construction activities are analyzed. The main focus of this analysis is on the vehicle emissions associated with alternative project staging approaches, specifically a full closure of the road during construction, versus an intermittent road closure. The analysis includes the direct and upstream emissions associated with materials, construction equipment, mobilization of resources to the work site, and maintenance activity associated with the project over its lifetime. The analysis is based on one case study of a road project in New Jersey. The assumptions underlying the staging analysis are based on hypothetical approaches. Results provide an assessment of the main sources of project related emissions and the ability to minimize total project emissions by minimizing traffic disruption. In the analysis with a full closure of the road, traffic disruption accounts for 26% of total emissions, while with an intermittent road closure, traffic disruption accounts for only 2% of total emissions. The other main sources are from materials and life-cycle maintenance. The analysis demonstrates the feasibility of minimizing project related GHG emissions during road construction activities. |
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| Keywords: | Greenhouse gas emissions Road construction Traffic Project staging |
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