scholarly journals Spatial organization and economic analysis in sustainable transit oriented development

2008 ◽  
Author(s):  
N. Mohajeri
2019 ◽  
Vol 11 (24) ◽  
pp. 7241
Author(s):  
Yingqun Zhang ◽  
Rui Song ◽  
Rob van Nes ◽  
Shiwei He ◽  
Weichuan Yin

The fast development of urbanization has led to imbalances in cities, causing congestion, pollution, and urban sprawl. In response to the growing concern over the distribution of demand and supply, a more coordinated urban structure is addressed in comprehensive planning processes. In this study, we attempt to identify urban structure using a Network–Activity–Human model under the Transit-Oriented Development (TOD) concept, since TOD is usually regarded as an urban spatial planning tool. In order to explore the strengths and weaknesses of the urban structure, we define the TOD index and unbalance degree and then classify the urban areas accordingly. We take the city of Beijing as a case study and identify nine urban types. The results show a hierarchical urban structure: the city center covers most of the hotspots which display higher imbalances, the surroundings of the city center are less developed, and the city edges show higher potentials in both exploitation and transportation development. Moreover, we discuss the extent to which the spatial scale influences the unbalance degree and apply a sensitivity analysis based on the goals of different stakeholders. This methodology could be utilized at any study scale and in any situation, and the results could offer suggestions for more accurate urban planning, strengthening the relationship between TOD and spatial organization.


2022 ◽  
Author(s):  
André L. B. Turbay ◽  
Rafael H. M. Pereira ◽  
Rodrigo Firmino

In this paper we analyze how socio-spatial inequalities have been shaped by transport and land-use planning in Curitiba (Brazil), a city internationally recognized for its Transit Oriented Development (TOD) planning based on Bus Rapid Transit (BRT). We examine how the spatial organization of the BRT system is associated with the distribution of population densities, socioeconomic groups, and real-estate values and its implications in terms of inequalities of access to employment and health services. The results show that Curitiba's TOD has had limited influence on population densities, but has shaped the concentration of high-income classes and premium real-estate along its main BRT corridors. These effects contribute to the peripheralization of low-income communities with limited accessibility benefits from the transit system. Our findings suggest that Curitiba’s success story should be seen as a cautionary tale about the consequences of TOD planning, which perpetuate the spatial concentration of resources and reinforce inequalities of access to opportunities.


2018 ◽  
Vol 178 ◽  
pp. 08009
Author(s):  
Mihnea Costoiu ◽  
Adrian Ioana ◽  
Augustin Semenescu ◽  
Dragos Marcu ◽  
Massimo Polifroni

The spatial organization of enterprises is of great importance for the metallic materials industry (metallurgy), given the diversity and complexity of the technological processes and the related equipment. In an enterprise from the metallic materials industry, there may be sections for: production, casting, forging, mechanical (hot and / or cold) processing, assembly etc. for the different stages of the technological process related to the products to be made. The article presents theoretical and practical elements regarding the management of the spatial organization of enterprises in the metallic materials industry. The principles and methods of spatial organization are presented and analyzed. These principles and methods are based on the biunivocal relation between the functional and constructive changes related to the technologies and equipment (machinery, aggregates) specific to the metallic material industry. Prescribing (establishing) the objective function (OF) of the technological processes modeling system in the metallic materials industry is based on the qualitative - economic analysis of these processes.


2020 ◽  
Vol 19 (4) ◽  
pp. 780-796
Author(s):  
E.V. Bolgova ◽  
S.A. Bolgov ◽  
M.V. Kurnikova

Subject. The paper deals with the economic analysis of university spatial networking. Objectives. The purpose is to work out methods for economic analysis of spatial network of higher education institutions based on the European experience and information sources of the space location of universities in the EU countries. Methods. The study rests on theoretical analysis of the higher education institutions network as a spatially localized system, economic and statistical techniques of sampling and grouping, methods for comprehensive economic indicators of distribution, indexing, and ranking. Results. We underpinned approaches to the university network development as part of the science-push and the local development driver model; developed information support and methods for economic analysis of spatial organization of university networks; presented and tested the methodology for assessing the university spatial networking. Conclusions. The offered methods enable to obtain the estimates of even distribution of universities across a country, which is achieved by the country policy. These methods may be recommended for sound management decisions and strategies for higher education institutions development, spatial and socio-economic growth, policies designed to equalize the level of social and economic development of subjects of the Russian Federation.


Author(s):  
P.J. Phillips ◽  
J. Huang ◽  
S. M. Dunn

In this paper we present an efficient algorithm for automatically finding the correspondence between pairs of stereo micrographs, the key step in forming a stereo image. The computation burden in this problem is solving for the optimal mapping and transformation between the two micrographs. In this paper, we present a sieve algorithm for efficiently estimating the transformation and correspondence.In a sieve algorithm, a sequence of stages gradually reduce the number of transformations and correspondences that need to be examined, i.e., the analogy of sieving through the set of mappings with gradually finer meshes until the answer is found. The set of sieves is derived from an image model, here a planar graph that encodes the spatial organization of the features. In the sieve algorithm, the graph represents the spatial arrangement of objects in the image. The algorithm for finding the correspondence restricts its attention to the graph, with the correspondence being found by a combination of graph matchings, point set matching and geometric invariants.


2015 ◽  
Vol 57 ◽  
pp. 189-201 ◽  
Author(s):  
Jay Shankar ◽  
Cecile Boscher ◽  
Ivan R. Nabi

Spatial organization of the plasma membrane is an essential feature of the cellular response to external stimuli. Receptor organization at the cell surface mediates transmission of extracellular stimuli to intracellular signalling molecules and effectors that impact various cellular processes including cell differentiation, metabolism, growth, migration and apoptosis. Membrane domains include morphologically distinct plasma membrane invaginations such as clathrin-coated pits and caveolae, but also less well-defined domains such as lipid rafts and the galectin lattice. In the present chapter, we will discuss interaction between caveolae, lipid rafts and the galectin lattice in the control of cancer cell signalling.


Sign in / Sign up

Export Citation Format

Share Document