Pdf9280809997.Pdf

Total Page:16

File Type:pdf, Size:1020Kb

Pdf9280809997.Pdf The United Nations University is an organ of the United Nations established by the General Assembly in 1972 to be an international community of scholars engaged in research, advanced training, and the dissemination of knowledge related to the pressing global problems of human survival, development, and welfare. Its activities focus mainly on peace and conflict resolution, development in a changing world, and science and technology in relation to human welfare. The University operates through a worldwide network of research and postgraduate training centres, with its planning and coordinating headquarters in Tokyo. The United Nations University Press, the publishing division of the UNU, publishes scholarly books and periodicals in the social sciences, humanities, and pure and applied natural sciences related to the University’s research. Globalization and the world of large cities Note to the reader from the UNU The United Nations University Institute of Advanced Studies Programme on Mega- cities and Urban Development was initiated to examine the growth and management of large metropolitan agglomerations, especially in the developing world. This volume is the fifth in a series of studies that began in the early 1990s. It follows the release of Mega-city Growth and the Future (Tokyo: UNU Press, 1994), Emerging World Cities in Pacific Asia (Tokyo: UNU Press, 1996), The Mega-city in Latin America (Tokyo: UNU Press, 1996), and The Urban Challenge in Africa: Growth and Management of Its Large Cities (Tokyo: UNU Press, 1997). The contribution of this book includes discussions of the key elements of globalization and the role that cities play in the economic restructuring process. Chapters in the volume present analyses in five crucial areas for large cities: new technologies; global finance; transportation and tele- communications; rural–urban relations; and urban food supply. Globalization and the world of large cities EditedbyFu-chenLoand Yue-man Yeung United Nations a University Press TOKYO u NEW YORK u PARIS ( The United Nations University, 1998 The views expressed in this publication are those of the authors and do not necessarily reflect the views of the United Nations University. United Nations University Press The United Nations University, 53-70, Jingumae 5-chome, Shibuya-ku, Tokyo 150, Japan Tel: (03) 3499-2811 Fax: (03) 3406-7345 E-mail: [email protected] United Nations University Office in North America Room DC2-2050–2058, New York, NY 10016, USA Tel: +1-212-963-6387 Fax: +1-212-371-9454 E-mail: [email protected] United Nations University Press is the publishing division of the United Nations University. Cover design by Andrew Corbett Printed in Hong Kong UNUP-999 ISBN 92-808-0999-7 Library of Congress Cataloging-in-Publication Data Globalization and the world of large cities / edited by Fu-chen Lo and Yue-man Yeung. p. cm. Includes bibliographical references and index. ISBN 9280809997 1. Metropolitan areas. 2. Urbanization. 3. International economic relations. I. Lo, Fu-chen. II. Yeung, Yue-man. HT330.G56 1998 307.76—dc21 98-19736 CIP Contents List of tables and figures viii Preface xv 1. Introduction 1 Fu-chen Lo and Yue-man Yeung Part 1: Regional surveys and selected world cities 2. Globalization and the world cities 17 Peter Hall 3. World city regions in Europe: Structural change and future challenges 37 Klaus R. Kunzmann 4. World cities in North America: Structural change and future challenges 76 Peter Gordon and Harry W. Richardson v Contents 5. The growth of Tokyo as a world city 109 Masahiko Honjo 6. Globalization and world city formation in Pacific Asia 132 Yue-man Yeung and Fu-chen Lo 7. Urban corridors in Pacific Asia 155 Sang-chuel Choe 8. World cities and the urban future: The view from Latin America 174 Alan Gilbert 9. Rio de Janeiro as a world city 203 Hamilton C. Tolosa 10. Islamic cities in the world system 228 Salah El-Shakhs and Ellen Shoshkes 11. Cairo as a world city: The impact of Cairo’s orientation towards globalization 270 Mahmoud Yousry, Tarek Abu-Zekry, and Ahmed M. Yousry 12. Globalization trends and sub-Saharan African cities 314 Carole Rakodi 13. ‘‘Johannesburg’’: Coming to grips with globalization from an abnormal base 352 Keith Beavon Part 2: Key issues about the urban future 14. The impact of the new technologies and globalization on cities 391 Saskia Sassen 15. World cities as financial centres 410 David R. Meyer vi Contents 16. Transport and telecommunications among world cities 433 Peter J. Rimmer 17. Globalization and rural–urban relations in the developing world 471 T. G. McGee 18. Feeding the world’s cities 497 Hal Kane Contributors 519 Index 521 vii Tables and figures Tables 1.1 Shares of manufacturing in GDP, 1970–1993 3 1.2 Shares of service sector in GDP, 1970–1993 6 3.1 The world’s 10 largest cities in the sixteenth, seventeenth, and twentieth centuries 38 3.2 World cities in Europe according to various sources 41 3.3 The degree of urbanization in selected European countries, 1950 to 2020 44 3.4 The concentration of national population in world city regions in Europe, 1987 45 3.5 Population growth of European world city regions, 1800 to 1960 50 3.6 World city regions in Europe: Population development, 1980 to 1990 51 3.7 World city regions in Europe: Gross domestic product 52 3.8 World city regions in Europe: Unemployment 54 3.9 World city regions in Europe: Population, area, and administrative units 57 3.10 World city regions in Europe: Media power 59 viii List oftables and figures 3.11 World city regions in Europe: Airports, passengers, and freight volumes, 1990 70 4.1 The growth and decline of US cities, 1980–1990 79 4.2 Metropolitan population (CMSAs and MSAs) by size class in 1990, 1970–1990 83 4.3 Percentage population change for regional and metropolitan categories, 1960–1990 84 4.4 Percentage change in the 25 largest metropolitan areas in North, South, and West regions, 1960–1990 86 4.5 Metropolitan areas with greatest 1980–1990 increases: Total population 87 4.6 1990 population and 1980–1990 percentage change of total population: Non-Hispanic whites, all minorities, Blacks, Hispanics, and Asians by regional and metropolitan categories 89 4.7 1990 percentage for minorities, and 1980–1990 percentage change for non-Hispanic whites and minorities in primary central cities and surrounding suburbs of the 25 largest metropolitan areas in North, South, and West regions 91 4.8 Average annual growth rates in employment: 17 CMSAs, 1972–1992 93 4.9 Specializations of 12 CMSAs by maJor economic sector 95 4.10 Percentage change in primary central cities and surrounding areas of the 25 largest metropolitan areas in North, South, and West regions 96 4.11 Shares of sectoral employment: Combined (12) major CMSAs, 1982, 1987, 1992 99 4.12 Average annual sectoral employment growth rates: Combined (12) major CMSAs, 1982–1992 100 4.13 Average annual Job growth rates: 12 CMSAs, 1982–1992 102 4.14 Average annual service sectors Job growth rates: 12 CMSAs, 1987–1992 103 4.15 Shares of jobs in outer suburbs: Selected sectors, full-time and part-time employment, 1972–1992 105 6.1 Direct investment in Pacific Asia from and into the economies of the Pacific Economic Cooperation Council 138 6.2 Manufactures as a share of total exports: ASEAN countries, 1980–1990 140 ix List oftables and figures 6.3 Direct investment in ASEAN, 1988–1990 141 6.4 Varying rates of population growth in Jakarta, Hong Kong, and surrounding cities 144 7.1 Urbanization profile of East and South-East Asia 157 7.2 The urban population in East and South-East Asia 158 7.3 Ranking of city agglomerations by population, 1960, 1980, and 2000 160 7.4 Urban population and number of cities in the BESETO urban corridor 163 8.1 Urban population in Latin America (settlements with more than 20,000 inhabitants), 1940–1990 175 8.2 Major Latin American cities: Annual population growth rates, 1950–1990 176 8.3 Latin America’s giant cities, 1990 179 8.4 Latin America: Export performance of selected countries, 1965–1992 189 8.5 Economic growth in selected Latin American countries, 1980–1993 197 9.1 Urbanization ratios in territorially large upper- middle-income Latin American countries, 1970–1990 205 9.2 World cities in Latin America: Population growth, 1970–1990 206 9.3 The population of pairs of major metropolitan areas as a percentage of total urban population, 1970–1990 207 9.4 Metropolitan population growth in Brazil, 1970–1991 212 9.5 World cities in Brazil: Performance of global industries and services, 1985 215 9.6 The number of leading financial institutions with headquarters in Rio or Sa˜o Paulo and their transaction values, 1984 and 1993 219 9.7 Business and engineering consultancy firms, by number of graduates, 1987 221 10.1 Population size and percentage increase: World, more developed regions, less developed regions, and Muslim countries, 1995–2025 234 10.2 The world’s 30 mega-cities by rank in the year 2010: Their growth and share of national urban populations 236 10.3 Total population, percentage Muslim, and large cities (1þ million in 1995) in countries where Muslims constitute the largest religious group 239 x List oftables and figures 10.4 Population of the mega-city as a percentage of its country’s national urban population, 1950–2010 242 10.5 Average annual rate of growth of the Muslim mega-cities 243 10.6 Income, assistance, debt, and workers’ remittances to selected Muslim countries 246 11.1 Certified local investment and foreign loans and grants in the construction and public utilities sectors up to 1993 280 11.2 Accomplished investments
Recommended publications
  • 10 Megaregions Reconsidered: Urban Futures and the Future of the Urban
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Loughborough University Institutional Repository 1 10 Megaregions reconsidered: urban futures and the future of the urban John Harrison and Michael Hoyler 10.1 An introduction to (more than just) a debate on megaregions We live in a world of competing urban, regional and other spatial imaginaries. This book’s chief concern has been with one such spatial imaginary – the megaregion. More particularly, its theme has been the assertion that the megaregion constitutes globalization’s new urban form. Yet, what is clear is that the intellectual and practical literatures underpinning the megaregion thesis are not internally coherent and this is the cause of considerable confusion over the precise role of megaregions in globalization. This book has offered one solution through its focus on the who, how and why of megaregions much more than the what and where of megaregions. In short, moving the debate forward from questions of definition, identification and delimitation to questions of agency (who or what is constructing megaregions), process (how are megaregions being constructed), and specific interests (why are megaregions being constructed) is the contribution of this book. The individual chapters have interrogated many of the claims and counter-claims made about megaregions through examples as diverse as California, the US Great Lakes, Texas and the Gulf Coast, Greater Paris, Northern England, Northern Europe, and China’s Pearl River Delta. But, as with any such volume, our approach has offered up as many new questions as it has provided answers.
    [Show full text]
  • Cities and Their Vital Systems: Infrastructure Past, Present, and Future
    Cities and Their Vital Systems: Infrastructure Past, Present, and Future i Series on Technology and Social Priorities NATIONAL ACADEMY OF ENGINEERING CitiesCitiesCities andandand TheirTheirTheir VitalVitalVital SystemsSystemsSystems Infrastructure Past, Present, and Future Jesse H. Ausubel and Robert Herman Editors NATIONAL ACADEMY PRESS Washington, D.C. 1988 Copyright National Academy of Sciences. All rights reserved. Cities and Their Vital Systems: Infrastructure Past, Present, and Future ii National Academy Press 2101 Constitution Avenue, NW Washington, DC 20418 NOTICE: The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engineers. It is autonomous in its administration and in the selection of its members, sharing with the National Academy of Sci- ences the responsibility for advising the federal government. The National Academy of Engineering also sponsors engineering programs aimed at meeting national needs, encourages education and research, and recognizes the superior achievement of engineers. Dr. Robert M. White is president of the National Academy of Engineering. Funds for the National Academy of Engineering's Symposium Series on Technology and Social Priorities were provided by the Andrew W. Mellon Foundation, Carnegie Corporation of New York, and the Academy's Technology Agenda Program. This publication has been reviewed by a group other than the authors according to procedures approved by a Report Review Committee. The views expressed in this volume are those of the authors and are not presented as the views of the Mellon Foundation, Carnegie Corporation, or the National Academy of Engineering. Library of Congress Cataloging-in-Publication Data Cities and their vital systems.
    [Show full text]
  • Ecumenopolis, the Inevitable City of the Future, by C. A
    REVIEWS & NOTICES Earth Law Journal: Journal of International and Compa- should be of international interest—to inform those active rative Environmental Law,Edited by NICHOLAS A.ROBINSON. in the environmental field in one country of the theories and A. W. Sijthoff, Leyden, The Netherlands: Vol. 1, No. 1, practices being developed in other countries or at the inter- pp. 1-84, February 1975; Vol. 1, No. 2, pp. 85-182, May national level'. 1975, 24.5 X 16.2 x 0.5 and 0.6 cm, respectively; Dfl. 82 / In form and style somewhere between a journal and a $35.75: single issue Dfl. 22 / $9.50; Quarterly. magazine, Environmental Policy and Law's first issue pro- vides an informative and pleasing new encounter for law- Environmental Policy and Law, Edited by MARTIN A. MAT- journal readers. The journal contains good, relevant pic- TES (Editor-in-Chief WOLFGANG E. BURHENNE). Elsevier tures and even some provocative cartoons. Its sponsor, Sequoia, Lausanne, Switzerland: Vol. 1, No. 1, pp. 1-48, the International Council of Environmental Law, has thus June 1975; 27.1 x 20.0 x 0.3 cm, Sfr. 90 (or US $36.00, started a meritorious service toward its goal to develop the DM. 85.00, £15.25); Quarterly. interchange of information on legal, administrative, and The appearance of two journals devoted to legal issues policy, aspects of environmental conservation. provides a welcome sign of heightened awareness of the The sponsors and editors of both journals deserve high need for laws and institutions in the quest for international commendation for their pioneering moves to fill glaring environmental protection.
    [Show full text]
  • The South African Functional Metropolis – a Synthesis
    Wetenskaplike artikels• Research articles The South African functional metropolis – A synthesis Herman Geyer, Philip Geyer & Manie Geyer 1. INTRODUCTION Peer reviewed and revised Terms that are used to describe different forms of urban settlements have always been somewhat Abstract confusing. Terms such as village, Confusing usage of terms such as metropolis and metropolitan region in planning town, city and metropolis are usually policy in South Africa has led to the need for a fundamental investigation into the defined in terms of population size, morphological and functional properties of the country’s three largest cities. Using Gauteng, Cape Town and Durban as examples, the article distinguishes between areal extent, or density (Parr, 2012). different elements of functionality of metropolitan areas linking urban function Other researchers such as Parr to urban form. Starting at the global level and zooming in, the article examines (2007) use spatial relationships to metropolitan functional space at the national through the regional to the local level. define different parts of cities, while Semantically, it distinguishes between the terms metropolis and megalopolis; daily terms such as urban agglomeration, and weekly urban systems; and between urban monocentricism, multinodality conurbation, city region and mega- and polycentricism. Based on morphological differences, it classifies Cape Town, city define settlements by means of Durban, Pretoria and the Witwatersrand as metropolitan areas, but regards the sprawled urban agglomeration in Gauteng as a megalopolis. A case is also made the structure of aggregation. Then for greater recognition of the daily urban regions of the three primary cities of South there are terms defining urban Africa as part of the larger urban system of each.
    [Show full text]
  • An Ideological City: Koolhaas' Exodus in the Second Ecumene Autor(Es
    An ideological city: Koolhaas’ exodus in the Second Ecumene Autor(es): Teismann, Matthew Publicado por: Editorial do Departamento de Arquitetura URL persistente: URI:http://hdl.handle.net/10316.2/43460 DOI: DOI:https://doi.org/10.14195/1647-8681_8_3 Accessed : 28-Sep-2021 08:00:28 A navegação consulta e descarregamento dos títulos inseridos nas Bibliotecas Digitais UC Digitalis, UC Pombalina e UC Impactum, pressupõem a aceitação plena e sem reservas dos Termos e Condições de Uso destas Bibliotecas Digitais, disponíveis em https://digitalis.uc.pt/pt-pt/termos. Conforme exposto nos referidos Termos e Condições de Uso, o descarregamento de títulos de acesso restrito requer uma licença válida de autorização devendo o utilizador aceder ao(s) documento(s) a partir de um endereço de IP da instituição detentora da supramencionada licença. Ao utilizador é apenas permitido o descarregamento para uso pessoal, pelo que o emprego do(s) título(s) descarregado(s) para outro fim, designadamente comercial, carece de autorização do respetivo autor ou editor da obra. Na medida em que todas as obras da UC Digitalis se encontram protegidas pelo Código do Direito de Autor e Direitos Conexos e demais legislação aplicável, toda a cópia, parcial ou total, deste documento, nos casos em que é legalmente admitida, deverá conter ou fazer-se acompanhar por este aviso. impactum.uc.pt digitalis.uc.pt JOURNAL OF ARCHITECTURAL CULTURE 2017 JOELHO # 08 IDEAS AND PRACTICES FOR THE EUROPEAN CITY —— Guest Editors: José António Bandeirinha Luís Miguel Correia Nelson Mota Ákos
    [Show full text]
  • PROFESSOR SIR PETER HALL: ROLE MODEL Professor Sir Peter Hall: Role Model
    PROFESSOR SIR PETER HALL: ROLE MODEL Professor Sir Peter Hall: Role Model MICHAEL HEBBERT In a guest-editorial introduction to the ‘Built Environment’ special issue in celebration of Peter Hall, Michael Hebbert refl ects on the range and variety of his accomplishment. Diversity was a striking feature of the obituaries published after his death in 2014 and it shows through even more strongly in the present collection of papers from former students and collaborators. They refl ect on his legacy in a very personal way. Here was a man who modelled many roles and touched many lives: easy to love, hard to emulate, impossible to forget. … we were having a very enjoyable lunch at So who were his role models? It’s a long the Garrick, when he [Terry Heiser, Permanent roll-call but there are consistent patterns. As Secretary to the Department of the Environment] a writer he prized clarity and moral honesty, suddenly sprang a Heiser-type question: ‘Who are your role models?’ It more or less completely values learned from George Orwell, Arthur fl oored me and the other guest, who has produced Koestler, Frank Leavis, his Cambridge tutor some notable movies in his time. I don’t think either Gus Caesar, and Paul Barker (editor of New of us adequately rewarded Terry for that lunch. I’ve Society) among others. As a geographer he been thinking about the question ever since, and this admired social scientists who engaged with is by way of recompense. the evidence on the big scale: Alfred Mar- Thus Peter Hall introduced the memorable shall, Charles Booth, Beatrice Webb, Joseph inaugural lecture marking his professorial Schumpeter.
    [Show full text]
  • Growth of the World's Urban and Rural Population
    t•l ~UNITED ATIONS 'cid7~ Department of Economic and Social Affairs POPULATION STUDIES, No. 44 Gro·wth of the world's urban and rural population, 1920- 2000 United Nations New York, 1969 NOTE Symbols of United Nations documents are composed of capital letters combined with figures. Mention of such a symbol indicates a reference to a United Nations document. ST /SO A/Series Al44 UNITED NATIONS PUBLICATION Sales number: B.69. XIII. 3 Price: $U.S. 2.00 (or equivalent in other currencies) PREFACE Pursuant to recommendations of the Population compared and related to each other for dates from 1920 Commission at its ninth, tenth and eleventh sessions, to 1960 and projected to 1980, tentatively also to the year endorsed by the Economic and Social Council, 1 the 2000. The text of the report compares the estimates for United Nations is surveying demographic conditions and more developed and less developed, major areas of the trends in the world in their principal aspects. 2 This study world, and for the combination of more developed and is the first comprehensive report to present world-wide less developed regions. Additional estimates for a greater comparisons in rates and proportions of growth in urban number of regions and for individual countries are and rural population. a It includes the growth in urban and presented in the annexes, together with statements on rural population as variously defined in national censuses methods by which the estimates have been derived. and in the population of localities grouped by population Full acknowledgement is made of the deficiencies in the size, in an endeavour to arrive at comparable estimates.
    [Show full text]
  • The Complexity of Urban Systems: Contrasts and Similarities from Different Regions
    Australian Development Studies Network Australian National University Canberra, ACT 0200 The complexity of urban systems: Contrasts and similarities from different regions Tony Champion, Population Geography, University of Newcastle upon Tyne Briefing Paper No. 51 Autumn 1998 The complexity of urban systems: Contrasts and similarities from different regions Tony Champion, Population Geography, University of Newcastle upon Tyne Introduction international differences in levels of urbanisation through the last century, but it is noted that in recent years the most This paper addresses questions concerning the way in which rapid increases in urbanisation have taken place in some of urban systems have been evolving in recent years in different the least urbanised regions, as they move into the steeper parts of the world. The central question concerns the degree middle part of the logistic (S-shaped) curve of urbanisation. of similarity in urban system change across the world. One Taken together with the latest projections of national school of thought adheres to the 'transition' perspective, urbanisation rates (United Nations 1997), the overriding whereby all countries are expected at some time to go through impression is that trends will be leading towards convergence a modernisation process accompanied by demographic, as the twenty-first century unfolds. However, it is not mobility and urban transitions. Various models have been necessary to look far beyond the data before such a sweeping developed in order to chart national progress through this statement needs to be qualified. transitional phase. Another school of thought, the political­ economy approach, challenges these 'developmentalist' In the first place, there are at present very wide differences viewpoints by stressing the great contrast between the between countries within the individual major regions of the circumstances of countries in the world's 'periphery' today South.
    [Show full text]
  • The Detectability of Nightside City Lights on Exoplanets
    Draft version September 6, 2021 Typeset using LATEX twocolumn style in AASTeX63 The Detectability of Nightside City Lights on Exoplanets Thomas G. Beatty1 1Department of Astronomy and Steward Observatory, University of Arizona, Tucson, AZ 85721; [email protected] ABSTRACT Next-generation missions designed to detect biosignatures on exoplanets will also be capable of plac- ing constraints on the presence of technosignatures (evidence for technological life) on these same worlds. Here, I estimate the detectability of nightside city lights on habitable, Earth-like, exoplan- ets around nearby stars using direct-imaging observations from the proposed LUVOIR and HabEx observatories. I use data from the Soumi National Polar-orbiting Partnership satellite to determine the surface flux from city lights at the top of Earth's atmosphere, and the spectra of commercially available high-power lamps to model the spectral energy distribution of the city lights. I consider how the detectability scales with urbanization fraction: from Earth's value of 0.05%, up to the limiting case of an ecumenopolis { or planet-wide city. I then calculate the minimum detectable urbanization fraction using 300 hours of observing time for generic Earth-analogs around stars within 8 pc of the Sun, and for nearby known potentially habitable planets. Though Earth itself would not be detectable by LUVOIR or HabEx, planets around M-dwarfs close to the Sun would show detectable signals from city lights for urbanization levels of 0.4% to 3%, while city lights on planets around nearby Sun-like stars would be detectable at urbanization levels of & 10%. The known planet Proxima b is a particu- larly compelling target for LUVOIR A observations, which would be able to detect city lights twelve times that of Earth in 300 hours, an urbanization level that is expected to occur on Earth around the mid-22nd-century.
    [Show full text]
  • Repurposing the Green Belt in the 2St Century
    Repurposing the Green Belt in the 21st Century Repurposing the Green Belt in the 21st Century Peter Bishop Alona Martinez Perez Rob Roggema Lesley Williams First published in 2020 by UCL Press University College London Gower Street London WC1E 6BT Available to download free: www.uclpress.co.uk Text © Authors, 2020 Images © Authors and copyright holders named in captions, 2020 The authors have asserted their rights under the Copyright, Designs and Patents Act 1988 to be identified as the authors of this work. A CIP catalogue record for this book is available from The British Library. This book is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Attribution should include the following information: Bishop, P., Martinez Perez, A., Roggema, R. and Williams, L. 2020. Repurposing the Green Belt in the 21st Century. London: UCL Press. https://doi. org/10.14324/111.9781787358843 Further details about Creative Commons licences are available at http:// creativecommons.org/licenses/ Any third-party material in this book is published under the book’s Creative Commons licence unless indicated otherwise in the credit line to the material. If you would like to reuse any third-party material not covered by the book’s Creative Commons licence, you will need to obtain permission directly from the copyright holder. ISBN: 978-1-78735-886-7 (Hbk) ISBN: 978-1-78735-885-0 (Pbk) ISBN: 978-1-78735-884-3 (PDF) ISBN: 978-1-78735-887-4 (epub) ISBN: 978-1-78735-888-1 (mobi) DOI: https://doi.org/10.14324/111.9781787358843 There is perhaps no need of the poor of London which more prominently forces itself on the notice of anyone working among them than that of space.
    [Show full text]
  • A Global Inventory of Urban Corridors Based on Perceptions and Night-Time Light Imagery
    International Journal of Geo-Information Article A Global Inventory of Urban Corridors Based on Perceptions and Night-Time Light Imagery Isabel Georg 1,*, Thomas Blaschke 1 and Hannes Taubenböck 2 1 Department of Geography and Geoinformation, University of Salzburg, 5020 Salzburg, Austria; [email protected] 2 German Aerospace Center (DLR), German Remote Sensing Data Center (DFD), Oberpfaffenhofen, 82234 Weßling, Germany; [email protected] * Correspondence: [email protected] Academic Editor: Wolfgang Kainz Received: 8 September 2016; Accepted: 29 November 2016; Published: 7 December 2016 Abstract: The massive growth of some urban areas has led to new constellations of urban forms. New concepts describing large urban areas have been introduced but are not always defined and mapped sufficiently and consistently. This article describes urban corridors as an example of such a concept with an ambiguous spatial definition. Based on the existing usage of the concept in scientific literature and the results of a questionnaire, we attempt to spatially parameterize and identify the main characteristics of urban corridors on a global scale. The parameters we use are physically measurable and therefore serve as a basis for a harmonized and scientifically sound mapping of urban corridors using remote sensing data and methods. Our results are presented in a global urban corridor map. Keywords: urban corridors; large urban areas; urban mapping; global urban mapping; remote sensing; night-time lights; urban area mapping; OpenStreetMap 1. Introduction Cities imply changes. Such changes occur on different scales and levels, mostly based on an increasing urban population and bringing about changes in urban areas worldwide—not just in numbers, but also in size, shape and type.
    [Show full text]
  • Ecumenopolis, World-City of Tomorrow the Trend of City Growth Must
    Articles From Impact of Science on Society, v.19, no.2, April - June 1969, p. 179-193: 8 fig. The city(II): Ecumenopolis, The trend of city growth must eventually lead from world-city of tomorrow megalopolis to Ecumenopolis, a single planet-wide city including all Earth's inhabitants. This evolution is inevitable, nor, says Dr. Doxiadis, is it desirable to avoid it. Instead, we must plan now to make Ecumenopolis fully livable and comfortable for man. Already the main features of the world-city can be perceived: tentacles of nature interwoven and reaching everywhere into built-up areas; utilities lines, food transport tubes and high-speed roadways all moved underground; and the vast population living in easeful small-town-like units of 30,000 to 50,000 people. WHY THE CRISES IN OUR CITIES About thirty-five years ago, when one talked of cities, the only questions raised were, as a rule, questions of the aesthetics of buildings: whether a particular house or monument was beautiful or ugly. Later, when the world began to suffer severely from the poor state of communications, all one heard on every hand was about the crisis in urban communications, and more particularly about too many motor-cars. Later still, social problems arose in certain countries, and people began to view the urban crisis from that particular aspect. In some countries, the problems were specifically racial, as in the United States, where the situation is more delicate than elsewhere. And so the urban crisis then took on the appearance of a social crisis. Sometimes, also, the urban crisis was poorly understood, because each person tended to regard it from his own particular point of view.
    [Show full text]