Changes in air transport connectivity of Russian cities in 1990–2015

Tarkhov, Sergey

doi:10.1134/s2079970517020095

Cited by 6 publications

(2 citation statements)

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“…Therefore, Moscow is the heart of the component and the Russian air network in particular. This result corroborates the findings reported in Tarkhov ( 2017 ). Indeed, this paper shows that since the fall of the Soviet Union, the Russian air network is more and more centralized in Moscow.…”

Section: Degree Centrality Analysissupporting

confidence: 93%

Revealing the component structure of the world air transportation network

et al. 2021

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Air transportation plays an essential role in the global economy. Therefore, there is a great deal of work to understand better the complex network formed by the links between the origins and destinations of flights. Some investigations show that the world air transportation network exhibits a community and a core-periphery structure. Although precious, these representations do not distinguish the inter-regional (global) web of connections from the regional (local) one. Therefore, we propose a new mesoscopic model called the component structure that decomposes the network into local and global components. Local components are the dense areas of the network, and global components are the nodes and links bridging the local components. As a case study, we consider the unweighted and undirected world air transportation network. Experiments show that it contains seven large local components and multiple small ones spatially well-defined. Moreover, it has a main global component covering the world. We perform an extensive comparative analysis of the structure of the components. Results demonstrate the non-homogeneous nature of the world air transportation network. The local components structure highlights regional differences, and the global component organization captures the efficiency of inter-regional travel. Centrality analysis of the components allows distinguishing airports centered on regional destinations from those focused on inter-regional exchanges. Core analysis is more accurate in the components than in the whole network where Europe dominates, blurring the rest of the world. Besides the world air transportation network, this paper demonstrates the potential of the component decomposition for modeling and analyzing the mesoscale structure of networks.

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Section: Degree Centrality Analysissupporting

confidence: 93%

Revealing the component structure of the world air transportation network

et al. 2021

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“…In domestic science, the topic of transport systems was developed in geographical works that studied transportation systems in general and passenger transportation in particular: the works of domestic scientists in regard to integrated and transportation accessibility [26,27], the polarized landscape model [28], the morphological approach to the study of transport networks [29][30][31], and many others. The functioning of transport, closely related to the existing system of settlement, is presented in [32] and others.…”

Section: Related Workmentioning

confidence: 99%

Sustainability and Resilience of Indigenous Siberian Communities under the Impact of Transportation Infrastructure Transformation

et al. 2022

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Transport provision in remote territories is one of the most important factors in maintaining the sustainability of socio-economic and ecological systems. Indigenous peoples of Siberia have always been mobile using diverse traditional ways across the taiga. During the Soviet period, the transition to settled life, along with technological development and the emergence of new modes of transport, such as off-road cars, snowmobiles, and motor boats, significantly affected the level of population mobility, including remote areas where people are engaged in traditional nature management. With the collapse of the Soviet Union, there were significant changes and reductions in the subsidies of transportation systems for remote terrains that made them isolated. Transport connectivity has been realized through rare plane flights (once a month or less) or by cars on dirt roads (actually off-road) that take several days of travel. Siberian territories rich with natural resources, low population density, and weak infrastructure might be attractive for mining companies. Being difficult to access not only for the local population, but also for industrial companies, the territories imply the allocation of a significant share of road construction and transport costs in the cost items of miners and processors. The problems of sustainability and resilience of the indigenous peoples of Siberia require special attention when restructuring transport communications, but they have practically not been studied before. Methods of in-depth and group interviews with local residents were used. Based on comparative geographic and statistical analysis and generalization of data, network and problem approaches applied for various sources and field materials (including in-depth and group interviews), the factors of sustainability and resilience, which the indigenous communities of three remote Siberian territories pin their hopes on in the context of the transformation of transportation infrastructure, have been identified. If geographic remoteness remains an unchanged fact, the expansion of desired transport accessibility (mainly due to investments by industrial companies) is associated by locals with the possibility of additional income related to provision of services, the emergence of new types of employment of the population that have not been observed before, and the implementation of new transport modes to support traditional activities.

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