Studies related to the growth of the transportation networks from the second half of the 20th century have constantly been focused on the topological complexity of motorized & public transportation network (internal geometry & dynamics, occupied space, and geographical settings), or the structural properties (complexity of network structure). However, those studies have failed to incorporate the concept of an integrated public-soft transportation network, and the human-oriented transportation system, and its structural elements: soft transportation network, accessible nodes called Transit-Oriented Developments (TODs), healthy neighborhoods and, most importantly, its attributes. Additionally, the relative location (urban geographical settings) haven't been conceptualized in their models.In this paper, the ontological frameworks of an integrated public-soft transportation network and human-oriented transportation system will be proposed. Secondly, the attributes of those networks will be determined by comparing the integrated public-soft transportation network in Finland (Helsinki) with ordinary one in Italy (Rome) through the human-oriented transportation system framework. Thirdly, the applicability of the concept of human-oriented transportation system in Bozcaada (Tenedos) Island will be discussed. Thus, a new conceptual model of the human oriented transportation system will be proposed.
Urban ecosystems can be conceptualized like living organisms supported by material and energy flows that allow the generation of ecosystem structures and functions and the production of goods and services. Urban metabolism accounts for the flows of materials, energy, resources, food, and people in cities, providing a framework for the study of the interactions between natural and socioeconomic systems. In this paper, the global scientific literature on urban metabolism was explored to identify knowledge gaps and emerging research areas over the last decades. A bibliometric network analysis was implemented to generate maps based on network data of scientific publications displaying relationships among scientific journals, researchers, countries, and keywords. The total number of publications on urban metabolism from 1990 to 2019 resulted in 498 documents. USA and China resulted the first countries publishing on urban metabolism while among the journals, the Journal of Industrial Ecology and Journal of Cleaner Production resulted the first in the ranking. The co-occurrence network map of keywords showed that, over the last decade, the main focus of research on urban metabolism has shifted from environmental issues to environmental accounting and socioeconomic aspects. Considering the importance of urban systems for the achievement of local and global sustainability goals, it is likely that the scientific literature on urban metabolism will continue growing over the next years. Being cities characterized by complex relationships between natural and socioeconomic systems, it is desirable that future studies will explore the multidimensional features of urban metabolism through multi-criteria assessment frameworks.
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