Abstract
Among the construction related transports, the transport of soil and rock materials stand for a major part. The purpose of this study is to develop an approach enabling scenario analysis of the relation between storage location and soil and rock material transport planning. The study follows a sequential exploratory mixed methods design. First a literature review and a qualitative case study identifies the problem. Second a quantitative optimization method is used to evaluate possible scenarios showing the interdependence between storage location costs and transport impact. The study has two main contributions, the mixed methods approach to evaluate economic and environmental considerations in an infrastructure project and the scenario analysis of different options for inventory control and transport. The presented study adds knowledge to transport efficiency of rock and soil materials.
Highlights
The construction industry is suffering from low productivity growth but is responsible for about 40 % of the energy use and one third of greenhouse gas emissions (GHG) generated world-wide (Pearce & Ahn, 2017)
First a case study was con ducted to thoroughly understand the real-world problem features and the present working procedure, a metaheuristic solution approach based on Adaptive Large Neighborhood Search (ALNS) was developed to generate results for the real-world case
The problem features were combined into different scenarios that allowed us to explore the relationship between site layout planning, here with focus on inventory control decisions, and the transport planning of infrastructure development projects
Summary
The construction industry is suffering from low productivity growth but is responsible for about 40 % of the energy use and one third of greenhouse gas emissions (GHG) generated world-wide (Pearce & Ahn, 2017). According to Seo, Kim, Hong, and Kim (2016) construction transport accounts for 2.4 %–5.5 % CO2 emissions, whereas according to Chang and Kendall (2011) it is up to 16 % of the emissions in a project. Among these transports, the transports of excavation materials, i.e. soil and rock, need special attention. Goods transport surveys show that these form the largest part of the ton-km transported in a Swedish region (Dalenstam, 2015) They travel short distances; because of their number their impact is large (Eras, Guiterrez, Capote, Hens, & Vandecasteele, 2013)
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