Street (Not Highway) Design
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A Minority of Streets Account for a Majority of Traffic Flow Bin Jiang
Street Hierarchies: A Minority of Streets Account for a Majority of Traffic Flow Bin Jiang Department of Land Surveying and Geo-informatics The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Email: [email protected] Abstract Urban streets are hierarchically organized in the sense that a majority of streets are trivial, while a minority of streets is vital. This hierarchy can be simply, but elegantly, characterized by the 80/20 principle, i.e. 80 percent of streets are less connected (below the average), while 20 percent of streets are well connected (above the average); out of the 20 percent, there is 1 percent of streets that are extremely well connected. This paper, using a European city as an example, examined, at a much more detailed level, such street hierarchies from the perspective of geometric and topological properties. Based on an empirical study, we further proved a previous conjecture that a minority of streets accounts for a majority of traffic flow; more accurately, the 20 percent of top streets accommodate 80 percent of traffic flow (20/80), and the 1 percent of top streets account for more than 20 percent of traffic flow (1/20). Our study provides new evidence as to how a city is (self-)organized, contributing to the understanding of cities and their evolution using increasingly available mobility geographic information. Keywords: urban street networks, street hierarchy, traffic, power laws, Zipf’s law, Pareto distributions 1. Introduction As a basic man-made infrastructure and backbone of cities, urban streets demonstrate a hierarchical structure in the sense that a majority is trivial, while a minority is vital. -
Slum Clearance in Havana in an Age of Revolution, 1930-65
SLEEPING ON THE ASHES: SLUM CLEARANCE IN HAVANA IN AN AGE OF REVOLUTION, 1930-65 by Jesse Lewis Horst Bachelor of Arts, St. Olaf College, 2006 Master of Arts, University of Pittsburgh, 2012 Submitted to the Graduate Faculty of The Kenneth P. Dietrich School of Arts and Sciences in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Pittsburgh 2016 UNIVERSITY OF PITTSBURGH DIETRICH SCHOOL OF ARTS & SCIENCES This dissertation was presented by Jesse Horst It was defended on July 28, 2016 and approved by Scott Morgenstern, Associate Professor, Department of Political Science Edward Muller, Professor, Department of History Lara Putnam, Professor and Chair, Department of History Co-Chair: George Reid Andrews, Distinguished Professor, Department of History Co-Chair: Alejandro de la Fuente, Robert Woods Bliss Professor of Latin American History and Economics, Department of History, Harvard University ii Copyright © by Jesse Horst 2016 iii SLEEPING ON THE ASHES: SLUM CLEARANCE IN HAVANA IN AN AGE OF REVOLUTION, 1930-65 Jesse Horst, M.A., PhD University of Pittsburgh, 2016 This dissertation examines the relationship between poor, informally housed communities and the state in Havana, Cuba, from 1930 to 1965, before and after the first socialist revolution in the Western Hemisphere. It challenges the notion of a “great divide” between Republic and Revolution by tracing contentious interactions between technocrats, politicians, and financial elites on one hand, and mobilized, mostly-Afro-descended tenants and shantytown residents on the other hand. The dynamics of housing inequality in Havana not only reflected existing socio- racial hierarchies but also produced and reconfigured them in ways that have not been systematically researched. -
From Urban Studies to Urban Architecture: Critiques on the Use of Eurocentric Theories in Shaping the Emerging Cities” in Kudhori, D., & Kamini, Y
BANDUNG SPIRIT BOOK SERIES TOWARDS A SUSTAINABLE ECOLOGY Global Challenges and Local Responses in Africa and Asia 55 Years after the Bandung Asian-African Conference 1955 Editors: Darwis Khudori and Yukio Kamino Swadiansa, E. (2012b). “From Urban Studies to Urban Architecture: Critiques on the Use of Eurocentric Theories in Shaping the Emerging Cities” In Kudhori, D., & Kamini, Y. (ed). Towards a Sustainable Ecology: Global Challenges and Local Responses in Africa and Asia. Published in 5 countries; Beijing: OCHSPA Alliance, Malang: UB Press, Paris: GRIC Le Havre Universite, Tokyo: OISCA International, Casablanca: Africa Challenge. Pp. 235-43. ISBN: 978-602-203- 274-8. Copyright © 2012 by Darwis Kudhori This document is protected by the copyright law, authorised permission granted strictly for the open publication on Global University portal. To order complete version of the book please visit: www.bandungspirit.org Page 1 of 10 From Urban Studies to Urban Architecture: Critiques on the Use of Eurocentric1 Theories in Shaping the Emerging Cities Eka Swadiansa ABSTRACT The civilization of mankind today can be defined as an urban civilization. Historically speaking, ‘Urban Theories’ have originally been developed in Europe and later in the United States, thus today; their worldwide practices are always greatly influenced by the Eurocentric point of view. The Urban Theories were developed from ‘Urban Studies and Urban Planning’, to greater focus on ‘Urban Design and Compact City’, and to globally focus on ‘Alpha City’; however, far from these established utopia, the emerging cities are still struggling for fulfilling the basic primordial needs among their proletarian citizen. This paper is a two-section inquiry. -
Transportationtransportation
Transportationtransportation City of Elmhurst Comprehensive Plan TransporTATion Elmhurst’s transportation system consists of an extensive roadway network, including direct access to Interstate High- ways I-290, I-294, and I-88, an extensive commuter rail and bus transit system, as well as a well-connected pedestrian and bike network. This transportation network allows for easy and accessible travel within the City and excellent con- nections to the surrounding metropolitan area. Elmhurst’s interstate highway and commuter rail access are among its strongest assets, making it a very desirable community for living and conducting business. Therefore, maintain- ing a well-functioning and efficient transportation system is critical to sustaining the high quality-of-life in the com- munity. A review of existing conditions, including average daily traffic and transit ridership history, formed the basis for the development of the transportation framework and functional street classification. Through this analysis, pri- Commuter and freight rail tracks ority improvement areas were identified, as well as general improvements or suggestions to manage population and employment growth, relative to a functional and efficient 8. Improve wayfinding signage throughout the city to aid transportation system. This section provides an overview pedestrians, bicyclists and motorists in locating and of the transportation network in Elmhurst and offers some accessing key community facilities. recommendations to sustain and strengthen community mobility. Goal 2: Maintain and determine adequate parking facilities to serve land uses throughout the city. Goals AND OBJECTIVES Objectives: Goal 1: Continue to enhance mobility within the City by 1. Actively monitor, manage and address on-street and effectively managing local traffic issues and anticipating the off-street parking needs within the city to ensure ad- impact of future development on current traffic patterns. -
Urbanistica N. 146 April-June 2011
Urbanistica n. 146 April-June 2011 Distribution by www.planum.net Index and english translation of the articles Paolo Avarello The plan is dead, long live the plan edited by Gianfranco Gorelli Urban regeneration: fundamental strategy of the new structural Plan of Prato Paolo Maria Vannucchi The ‘factory town’: a problematic reality Michela Brachi, Pamela Bracciotti, Massimo Fabbri The project (pre)view Riccardo Pecorario The path from structure Plan to urban design edited by Carla Ferrari A structural plan for a ‘City of the wine’: the Ps of the Municipality of Bomporto Projects and implementation Raffaella Radoccia Co-planning Pto in the Val Pescara Mariangela Virno Temporal policies in the Abruzzo Region Stefano Stabilini, Roberto Zedda Chronographic analysis of the Urban systems. The case of Pescara edited by Simone Ombuen The geographical digital information in the planning ‘knowledge frameworks’ Simone Ombuen The european implementation of the Inspire directive and the Plan4all project Flavio Camerata, Simone Ombuen, Interoperability and spatial planners: a proposal for a land use Franco Vico ‘data model’ Flavio Camerata, Simone Ombuen What is a land use data model? Giuseppe De Marco Interoperability and metadata catalogues Stefano Magaudda Relationships among regional planning laws, ‘knowledge fra- meworks’ and Territorial information systems in Italy Gaia Caramellino Towards a national Plan. Shaping cuban planning during the fifties Profiles and practices Rosario Pavia Waterfrontstory Carlos Smaniotto Costa, Monica Bocci Brasilia, the city of the future is 50 years old. The urban design and the challenges of the Brazilian national capital Michele Talia To research of one impossible balance Antonella Radicchi On the sonic image of the city Marco Barbieri Urban grapes. -
Powerpoint Sunusu
ARCH 222 HISTORY OF ARCHITECTURE II PRESENTATION 11.05.2017 ZEYNEP YAĞCIOĞLU THE ATHENS CHARTER (1943) LE CORBUISER • The Athens Charter is a written manifesto which published by the Swiss architect and urban planner Le Corbusier in 1943. The book’s context is about the Fourth Congress of CIAM as a summary which eventuated in a passenger boat from Marsellie, France to Athens, Greece and back again in 1933. It was first published in France and in those years that The Athens Charter was published, France was at the height of the German occupation and the Vicky government. To make the modern architecture and the urban planning more efficient, rational and hygienic; the charter can be interpreted as a condensed version of them as a total remaking of cities in the industrial world. CIAM ( Congrés Internationaux d’Architecture Moderne) is founded at the Chateau of La Sarraz, Switzerland in June 1928. Its purpose was to advance both modernism and internationalism in architecture and urban planning as an avant-garde association of architects. To do a service the interests of the society, CIAM saw itself as an elite group who revolutionize the architecture and city planning. Its members were consists of some of the best known architects of the twentieth century such as Le Corbusier, Walter Gropious, and Richard Neutra, and also many of others who considered it for principles on how to formalize the urban environment in a rapidly changing world. CIAM is considered of as an instrument of propaganda to improve the reason of the new architecture that was developing in Europe in 1920s from the beginning. -
Doxiadis, from Ekistics to the Delos Meetings
17th IPHS Conference, Delft 2016 | HISTORY URBANISM RESILIENCE | VOLUME 06 Scales and Systems | Policy Making Systems of City,Culture and Society- | Urbanism and- Politics in the 1960s: Permanence, Rupture and Tensions in Brazilian Urbanism and Development URBAN pLANNING IN GUANABARA STATE, BRAZIL: DOXIADIS, FROM EKISTICS TO THE DELOS MEETINGS Vera Rezende Universidade Federal Fluminense This article looks into the evolution of the Ekistics Theory as formulated by Constantinos A. Doxiadis for the drawing up of a concept of Network. Following the Delos Meetings, this theory, a science of human settlements, subsequently evolved into the idea of human activity networks and how they could apply to different fields, especially architecture and urbanism. Those meeting were held during cruises around the Greek Islands with intellectuals from different areas of knowledge and countries. , Moreover, Ekistics theory was used as a basic for the formulation of the Plan for Guanabara State, Brazil, whose launch in 1964 took place a few months after the first Delos Meeting in 1963. The plan was developed for Guanabara State following the transfer of the country’s capital from Rio de Janeiro to Brasília in 1960. Carlos Lacerda, the first elected governor, invited Doxiadis, hoping that by using technical instruments devised by the Greek architect and by relying on a foreign consultant, the plan would turn the city-state into a model of administration, apart from political pressures. The article highlights the rationality based on the Ekistics, strongly -
Contemporary Architecture in Historic Environment: Bibliography
Bibliography Contemporary Architecture in the Historic Environment An Annotated Bibliography Edited by Sara Lardinois, Ana Paula Arato Gonçalves, Laura Matarese, and Susan Macdonald Contemporary Architecture in the Historic Environment An Annotated Bibliography Edited by Sara Lardinois, Ana Paula Arato Gonçalves, Laura Matarese, and Susan Macdonald THE GETTY CONSERVATION INSTITUTE LOS ANGELES Contemporary Architecture in the Historic Environment: An Annotated Bibliography - Getty Conservation Institute - 2015 © 2015 J. Paul Getty Trust The Getty Conservation Institute 1200 Getty Center Drive, Suite 700 Los Angeles, CA 90049-1684 United States Telephone 310 440-7325 Fax 310 440-7702 E-mail [email protected] www.getty.edu/conservation Copy Editor: Dianne Woo ISBN: 978-1-937433-26-0 The Getty Conservation Institute works to advance conservation practice in the visual arts, broadly interpreted to include objects, collections, architecture, and sites. It serves the conservation community through scientific research, education and training, model field projects, and the broad dissemination of the results of both its own work and the work of others in the field. And in all its endeavors, it focuses on the creation and dissemination of knowledge that will benefit professionals and organizations responsible for the conservation of the world’s cultural heritage. Front Cover: City Hall Extension, Murcia, Spain, designed by Rafael Moneo (1991–98) Photo: © Michael Moran/OTTO Contemporary Architecture in the Historic Environment: An Annotated Bibliography -
Residential Spaces As Urban Fabric: the Case of São Paulo
The 4 th International Conference of the International Forum on Urbanism (IFoU) 2009 Amsterdam/Delft The New Urban Question – Urbanism beyond Neo-Liberalism RESIDENTIAL SPACES AS URBAN FABRIC: THE CASE OF SÃO PAULO Christine Van Sluys* *Universitat Politécnica de Catalunya, Barcelona, España, [email protected] ABSTRACT: The accelerated population growth faced by São Paulo during the 20th century resulted in a construction of a complex and ambiguous territory. Since the end of the 1930s, São Paulo has developed different public housing policies to face the growing housing deficit. These policies gave priority to quantitative issues and gradually dissociate the urban residential project of the city construction process. Meanwhile, we can identify projects that have sought this double challenge: The residential amount and the urban quality. This essay attempts to analyze from historical processes, the role that public residential urban projects have played in the construction of the metropolitan territory. KEY WORDS: rapid urban growth, urban structure, social housing, residential urban project, socio- territorial inequalities, São Paulo. SÃO PAULO METROPOLIS The metropolitan region of São Paulo has an area of approximately 8.051 km2 and its urbanized area corresponds to 2.209 km2. Today the population of the metropolitan region of São Paulo is approximately 20 million inhabitants of which 11 million live in the city 1. The metropolitan region of São Paulo raises 19% of the Brazilian GDP, which does not prevent; having rates of unemployment around 17.6% and a residential deficit of around 12% 2. This represents approximately 864 thousand homes, whereas the total deficit of the country is 7.2 million homes 3. -
PHILADELPHIA STREET HIERARCHIES Thomson Korostoff University Scholars Summer and Fall 2016
PHILADELPHIA STREET HIERARCHIES Thomson Korostoff University Scholars Summer and Fall 2016 Introduction The Philadelphia grid is considered one of the foundational American city plans, a pattern replicated across the nation that embodies geometry, legibility, and organization at its purest. A marked change, at its application in 1682, from the organic morphologies of European cities, the regularity of the drawn grid is startling. And over a century later Charles Dickens criticized Philadelphia: “It is a handsome city, but distractingly regular. After walking about for an hour or two, I felt that I would have given the world for a crooked street.”1 But this grid is deceptive. Inside each of the huge blocks of Philadelphia’s grid are myriad alleyways, courts, back-buildings, and passages that defied the regularity of the external blocks. Dickens’ take on the personal aesthetic experience of the grid highlights its superficiality. While these alleys are composed of straight lines, it is only the visual appearance of non-crooked corners in the alleys and courts that distinguishes Philadelphia from a curving organic form such as Boston’s. The means by which internal courts are built and formed is the same organic growth as a non-gridded city.2 Unclear The scale of Philadelphia’s grid and the localized nature of organic growth within it create a distinctive urban form of squares and interiors, one that under examination at an intermediate block-level scale reveals a distinct hierarchy of street types. This hierarchical urban fabric produces a diversity of architectural forms that in turn allow for a city that retains a remarkable level of demographic racial diversity into the 20th century. -
Urban Redevelopment in Shenzhen, China Neoliberal Urbanism, Gentrification, and Everyday Life in Baishizhou Urban Village
DEGREE PROJECT IN THE BUILT ENVIRONMENT, SECOND CYCLE, 30 CREDITS STOCKHOLM, SWEDEN 2019 Urban Redevelopment in Shenzhen, China Neoliberal Urbanism, Gentrification, and Everyday Life in Baishizhou Urban Village JOHAN BACKHOLM KTH ROYAL INSTITUTE OF TECHNOLOGY SCHOOL OF ARCHITECTURE AND THE BUILT ENVIRONMENT Urban Redevelopment in Shenzhen, China Neoliberal Urbanism, Gentrification, and Everyday Life in Baishizhou Urban Village JOHAN BACKHOLM Master’s Thesis. AG212X Degree Project in Urban and Regional Planning, Second Cycle, 30 credits. Master’s Programme in Sustainable Urban Planning and Design, School of Architecture and the Built Environment, KTH Royal Institute of Technology, Stockholm, Sweden. Supervisor: Kyle Farrell. PhD Fellow, Division of Urban and Regional Studies, Department of Urban Planning and Environment, School of Architecture and the Built Environment, KTH Royal Institute of Technology, Stockholm, Sweden. Examiner: Andrew Karvonen. Associate Professor, Division of Urban and Regional Studies, Department of Urban Planning and Environment, School of Architecture and the Built Environment, KTH Royal Institute of Technology, Stockholm, Sweden. Author contact: [email protected] Stockholm 2019 Abstract Urban redevelopment is increasingly used as a policy tool for economic growth by local governments in Chinese cities, which is taking place amid rapid urbanization and in an expanding globalized economy. Along with the spatial transformation, urban redevelopment often entails socioeconomic change in the form of processes of gentrification, -
Traffic Calming Some Definitions
Traffic Calming-- Some Definitions Traffic calming involves changes in street alignment, installation of barriers, and other physical measures to reduce traffic speeds and/or cut-through volumes, in the interest of street safety, livability, and other public purposes. 1 Traffic calming involves altering of motorist behavior on a street or on a street network. It also includes traffic management, which involves changing traffic routes or flows within a neighborhood. 2 Traffic calming consists of operational measures such as enhanced police enforcement, speed displays, and a community speed watch program, as well as such physical measures as edgelines, chokers, chicanes, traffic circles, speed humps and raised crosswalks. 3 History-European European traffic calming began as a grassroots movement in the late 1960s. Angry residents of the Dutch City of Delft fought cut-through traffic by turning their streets into woonerven, or "living yards." This was followed by the development of European slow streets (designed for 20 mph) in late 1970s; 4 European History continued.. The application of traffic calming principles to intercity highways through small Danish and German towns in the 1980s; And the treatment of urban arterials in area wide schemes, principally in Germany and France, also in the 1980s. 5 History - America In the U.S., a version of traffic calming was practiced as early as the late 1960s and early 1970s in such places as Berkeley, CA, Seattle, WA and Eugene,OR. 6 History-America Continued The first national study of traffic calming was completed circa 1980. It explored residential preferences related to traffic, collected performance data on speed humps, and reviewed legal issues.