Verifying the sustainability factors of mega transportation infrastructure: Sydney Metro’s commissioning through the “significance matrix” methodology

Purpose Through the significance matrix, this paper aims to investigate and explore the main sustainability factors of mega transportation infrastructure projects. Sydney’s Metro mega transportation infrastructure is used as a case study. Sydney’s Metro was selected because of its sustainability challenges faced because of the areas’ diverse ecological zones. Sydney’s Metro is thus examined as the basis of best practice for the determination of the sustainability factors of transportation infrastructures. Design/methodology/approach Using the significance matrix as a methodology, this research evaluates the environmental impact assessment and environmental assessment processes, to alleviate the problems of the mega transportation infrastructure. Findings This research found that a more comprehensive determination is needed to further analyse the sustainability factors of mega transportation infrastructures, use of a significance matrix would further assess the environmental complexities of mega transportation infrastructures and the sustainability factors of mega transportation infrastructures should include a nonlinear and asymmetrical scheme highlighting its components and carefully outlining its integration and consolidation. Originality/value Although there is concurrent research into sustainability factors of mega transportation, this paper undertakes a new methodology for such infrastructure. While the significance matrix is not a new concept, it has never been used specifically for mega transportation infrastructure. Subsequently, using the significance matrix as a methodology, this research undertakes such environmental analysis and assessment and thus produces a qualitative risk analysis matrix. The findings from this research will ultimately assist the key stakeholders of mega transportation infrastructures to better plan, monitor and support similar projects.

Transportation Amenities and High-Tech Firm Location: An Empirical Study of High-Tech Clusters

Clustering and active transportation infrastructures have a significant impact on economic development strategies for attracting high-tech firms. High-tech firms cluster to create economies of scale. In theory, such clusters favor walkable and transit-accessible locations following the preferences of footloose workers of the creative class, an expectation that underpins pro-walkability and transit-accessible development strategies. Such approaches, however, fail to consider countervailing factors including changes in logistics, land values, the rise of the e-economy, and gig workers, which could result in a preference for auto-centric locations. This study addresses the knowledge gap by investigating differences in location behaviors of six high-tech sectoral categories with respect to transportation infrastructures. The analysis uses a firm-level micro dataset provided by Esri along with multiple logit regressions to explore the relationship between high-tech firm locations and transportation amenities in 627 high-tech clusters from the 52 largest U.S. regions. The results show that not all high-tech industries opt for walkable and transit-accessible locations. Compared with other high-tech specializations, professional services (i.e., data processing/computer or engineering and architectural services), which account for the largest share of high-tech employees, are drawn to walkable and transit rich areas near central business districts. On the other hand, auto-centric locations on the peripheries are home to aerospace and bio-pharmaceutical industries. In light of these findings, it is essential that economic development officials aiming to achieve balanced growth consider major local high-tech sector(s) and sectoral differences when making policy decisions.

Geomaterials for Transportation Infrastructures

The American Society of Civil Engineers’ (ASCE) quadrennial report card exhibited the grim picture of nation’s transportation infrastructure [...]

Impacts of Public Telecommunications Policy on Industrial Geography and Welfare

We include a clear distinction between transport and telecommunication infrastructures. We assume that public expenditure enables Information Technology Enabled Services to be traded abroad without the use of traditional transport modes. We show that the increase in the knowledge spillovers mainly related to mobile human capital and trade of services can develop industrialization in developing country, leading to less spatial inequalities. This latter must invest more in telecommunication than in transportation infrastructures to attract both industrial and knowledge activities. The welfare level will be improved for skilled workers in both countries when public policy decreases the cost of trading knowledge.