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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Urban public spaces : a study of the relation between spatial configuration and use patterns

Arruda Campos, Maria Beatriz Mattei de January 2000 (has links)
This thesis sets out to investigate the key spatial properties that make for successful urban public spaces; specifically, which spatial properties lead to high levels of static occupation and which spatial properties affect the patterns of static distribution of people inside public spaces. This is a subject which has long attracted attention among urban designers, amongst whom there is a general consensus that well-designed urban places are lively, busy and vibrant, and that these properties are somehow, albeit unclearly, connected with design variables. However, in contrast to designers who often have treated public spaces as discrete spatial entities emphasising on localised spatial properties such as enclosure or quality and quantity of decorative elements, it is suggested that not enough has been done to understand the relationship between patterns of spatial use and global, relational features of public places. This research is therefore based on two propositions. The first is that the way public spaces are used is influenced by the permeable and visual connections that hold between the specific space under investigation and the configuration of the urban fabric where they are embedded and levels of pedestrian movement associated with it. The second is that these key spatial properties which are identified in the performance of public spaces can be found in traditional historical urban squares. The morphological analysis of 30 traditional historical urban squares of European towns and 12 public spaces in the City of London, which compose the main case study for providing quantifiable evidence on levels and distribution of static people, revealed three major issues. Firstly, the level of static people inside public spaces is directly related to levels of pedestrian movement across the public space, quantified through the 'strategic value', this being numerically defined as the sum of the integration values, or the degree of accessibility, of lines of sight and movement which pass through the body of the space. Secondly, the distribution of static people inside public spaces is inversely related to the level of visual connectivity between the internal areas of the public space and the surrounding grid, quantified by the degree of 'coverage density'. Thirdly, only the spatial properties which have been identified to be common to both samples showed to be related with the patterns of spatial use of public spaces. Consequently, these findings shape a new approach to the issue of patterns of spatial use of public spaces, based on the global understanding of the dynamics of the urban grid and the visual and permeability connections between public space and the urban environment.
2

Flow and pause: exploring human movement within a transit interchange

Spencer, Kristen 01 February 2010 (has links)
Due to the increase of global flows, people, products and information are moving faster than ever before. Transit stations in turn have largely lost the ability to connect the traveller with the local environment, evolving into bland and homogeneous spaces. By introducing a means to pause within these flows, it becomes possible to once again engage in and absorb the surroundings that have become ignored and disregarded. This study aims to reconnect user and the local context through an interior design of a multi-modal transit interchange. Dance and human movement are used as a methodology to unite user with place, ultimately informing new programs and spatial arrangements. The resulting interior design is able to foster place identity, allowing the user to slow their movements in order to create meaningful social, cultural and contextual connections within a transit space.
3

Flow and pause: exploring human movement within a transit interchange

Spencer, Kristen 01 February 2010 (has links)
Due to the increase of global flows, people, products and information are moving faster than ever before. Transit stations in turn have largely lost the ability to connect the traveller with the local environment, evolving into bland and homogeneous spaces. By introducing a means to pause within these flows, it becomes possible to once again engage in and absorb the surroundings that have become ignored and disregarded. This study aims to reconnect user and the local context through an interior design of a multi-modal transit interchange. Dance and human movement are used as a methodology to unite user with place, ultimately informing new programs and spatial arrangements. The resulting interior design is able to foster place identity, allowing the user to slow their movements in order to create meaningful social, cultural and contextual connections within a transit space.
4

Appendage

Coughlin, Katherine, Coughlin 19 October 2018 (has links)
No description available.
5

Video data collection method for pedestrian movement variables & development of a pedestrian spatial parameters simulation model for railway station environments

Hermant, Laurent Fernand Leon 14 March 2012 (has links)
Thesis (PhD)--Stellenbosch University, 2012. / ENGLISH ABSTRACT: The design of railway station environments in South Africa and to a certain extent internationally, is based on rules of thumb. These rules, using general macroscopic principles for determining peak passenger loads are inadequate and misleading for detailed design purposes. The principles advocated in local design guideline documents are erroneous and ignore the highly variable flow nature or “micro-peaking” effects that typically occur within railway station environments. Furthermore, there are no procedures proposed in these guideline documents, which leads to ambiguous assessment techniques used by practitioners in the determination of pedestrian spatial areas. It is evident that the knowledge in the area of pedestrian movement contained within the design guidance is far from comprehensive. Without a reliable method for estimating pedestrian levels-of-service and capacities, design of new facilities does not follow a uniform process, resulting in high levels of uncertainty in determining if the time, money and resources invested in upgrading facilities will actually cater to the demand. The situation is further exacerbated by current industry thinking towards pedestrian modelling in South Africa, where it is perceived by both clients and practitioners to be more cost effective to use macroscopic techniques and designing infrastructure according to a “one-level-up” level-of-service method. Working with architects confirmed that the area of circulation design was lacking in data and guidance and that associated quantified assessments of pedestrian movement was rarely, if ever, carried out. Towards addressing these issues, the development of a Spatial Parameter (SP)-model spreadsheet application became the main objective of the study. The model contributes towards addressing the needs of individual station users based on the trade-off between level-of-service and infrastructure costs. The output of the model allows the designer to avoid the under-provision (detrimental to operations) and oversizing of railway station infrastructure (with obvious financial implications). The author recognised the lack of pedestrian movement data in South Africa and addressed this by conducting extensive video-based pedestrian observations aimed at exploring the macroscopic fundamental relationships and the ways in which these relationships might be influenced by the various personal, situational and environmental factors that characterise the context in which pedestrians move. The movement trajectories of 24,410 pedestrians were investigated over three infrastructure environments at Maitland and Bonteheuwel stations in Cape Town, carefully selected to incorporate the cultural diversity common in South Africa. Tracking of pedestrians was achieved via the use of an in-house developed “video annotator” software tool. Boarding and alighting rates of 7,426 passengers were also observed at these stations incorporating contributory attributes such as age, gender, body size, encumbrance, group size, time of day, and location. The research makes a number of significant advances in the understanding of pedestrian flow behaviour within railway station environments and provides recommendations to industry of what issues to consider. The empirical study has provided comprehensive pedestrian movement characteristics incorporating the relationships between density, speed and flow including the effect of culture and other context factors unique to the local South African environment. New methods for determining spatial requirements are proposed, together with new and unique empirical data for use by the local industry. A calibrated spreadsheet SP-model for assessing the design of concourse type railway stations is developed and presented in the study. The advance in local pedestrian flow knowledge, together with the SP-model, is shown to be practical through application to two real railway station case study projects. The results of this study constitute an important contribution to local pedestrian flow knowledge and is considered a valuable resource for those developing pedestrian models in practice. It is expected that the results will be useful in the planning and design of pedestrian environments in South African railway stations and can be applied to other African metro railway stations with similar pedestrian characteristics. Overall, this research has succeeded in advancing the approach to railway station design, empirical data, knowledge and methods held within the local engineering industry. However, the contribution of this study and associated conference papers is an early step in changing the perceptions in this country towards ensuring fully informed and appropriate performance-based spatial designs. / AFRIKAANSE OPSOMMING: Die ontwerp van areas binne Suid-Afrikaanse spoorweg stasies en ook tot ‘n sekere mate internasionaal, is gebaseer op historiese ondervindings asook riglyne wat tans in die praktyk gebruik word. Die riglyne gebruik algemene makroskopiese beginsels om die spits passasiersvrag te bepaal vir gedetaileerde ontwerp doeleindes. Hierdie riglyne is egter ongeskik en misleidend aangesien dit nie die hoogs wispelturige natuur van vloei en mikrospits effekte wat binne die stasies plaasvind, in ag nie. Die riglyne ontbreek ook van prosedures wat gevolg moet word vir die bepaling van ruimtelike areas vir voetgangers wat die gevolg het dat dubbelsinnige beramingstegnieke deur praktisyne gebruik word. Die kennis oor voetganger bewegings in die ontwerp riglyne is nie omvattend genoeg nie. Sonder ‘n betroubare beramings metode vir die bepaling van voetganger diensvlak en kapasiteit kan daar nie bepaal word of die tyd, geld en hulpbronne wat in die fasilitieit geinvesteer word, aan die behoeftes gaan voldoen nie. Die situasie word verder vererger deur die huidige persepsie oor voetganger modellering in Suid-Afrika, waar dit deur beide kliënte en praktisyne, as ‘n meer koste effektiewe oplossing gesien word om makroskopiese tegnieke te gebruik en om infrastruktuur te ontwerp volgens ‘n metode waar ‘n hoër diensvlak as die teiken diensvlak gebruik word. In samewerking met argitekte is dit bevestig dat die area van sirkulasie ontwerp ‘n tekort het aan data en riglyne en dat die kwantitatiewe skattings verbonde aan voetganger beweging selde, indien ooit, uitgevoer word. Die ontwikkeling van ‘n Spatial Parameters (SP)-model om die bogenoemde problem te oorkom, is die hoofdoel van hierdie tesis. Die model poog om die behoeftes van individuele stasie gebruikers aan te spreek gebaseer op die wisselwerking tussen diensvlak en infrastruktuur kostes. Die uitsette van die model stel die ontwerper in staat om ondervoorsiening en oorvoorsiening van spoorweg stasie infrastruktuur te voorkom wat nadelige vir die bedryf is en ook ooglopende finansiële implikasies tot gevolg het. Die skrywer het die tekort aan data aangaande voetganger bewegings in Suid-Afrika geidentifiseer en dit aangespreek deur omvattende video gebaseerde voetganger waarnemings te maak met die doel om die basiese makroskopiese verhoudings te ondersoek asook in hoe ‘n mate hierdie verhoudings beinvloed word deur verskeie persoonlike, liggings- en omgewingsfaktore wat die konteks waarin voetgangers beweeg, karakteriseer. Die bewegingsprofiel van 24,410 voetgangers is ondersoek by drie infrastruktuur omgewings by Maitland en Bonteheuwel stasies in Kaapstad. Die stasies is noukeurig uitgesoek om Suid-Afrika se kulturele diversiteit te verteenwoordig. Die voetgangers is nagevolg deur gebruik te maak van ‘n selfontwikkelde video-annoteerder sagteware. Waarneming van die opklim- en afklimspoed van 7,426 passasiers is gemaak by hierdie stasies en faktore soos ouderdom, geslag, liggaamsgrootte, mobiliteit, grootte van groepe, tyd van die dag en ligging was ingesluit by die waarnemings. Hierdie navorsing maak belangrike bydraes tot die begrip van die vloei van voetgangers binne spoorweg stasies en aanbevellings word aan die industrie gemaak oor die faktore wat in ag geneem moet word by ontwerp van fasilitieite. Die empiriese studie het omvattende voetganger beweging karakteristieke uitgewys wat die verhoudings tussen digtheid, spoed en vloei inkorporeer asook die effek van kultuur en ander faktore wat verband hou met die unieke konteks van die plaaslike Suid-Afrikaanse omgewing. Nuwe metodes om ruimtelike-vereistes te bepaal word voorgestel, saam met nuwe en unieke empiriese data vir gebruik deur die plaaslike industrie. ‘n Gekalibreerde en gevalideerde SP-model is ontwikkel om die ontwerp van spoorweg stasies te assesseer en word in hierdie tesis beskyf en aangebied. Die studie toon dat akkurate data en kennis oor plaaslike voetganger vloei met die SP-model verkry kan word, soos bewys uit twee spoorweg stasie studiegevalle. Die resultate van hierdie tesis dien as ‘n belangrike bydrae tot die kennis van plaaslike voetganger vloei en word geag as ‘n waardevolle hulpbron vir die ontwikkeling van voetganger modelle in die praktyk. Hierdie resultate mag nuttig wees gedurende die beplanning en ontwerp van voetganger-areas in Suid-Afrikaanse spoorweg stasies. Dit kan ook toegepas word vir spoorweg stasies in die res van Afrika wat soortgelyke voetganger karaktereienskappe het. Die navorsing het daarin geslaag om die benadering tot spoorweg stasie ontwerp te verbeter, asook om empiriese data, kennis en die metodes wat binne die plaaslike ingenieurs industrie voorgehou word, te verbeter. Let egter daarop dat die bydrae wat hierdie tesis maak, asook bydraes deur relevante konferensie verhandelinge, ‘n vroeë stap is in die verandering van persepsies in Suid-Afrika om geskikte prestasie-gebaseerde ruimte ontwerpe te verseker.
6

Tracking, analysis and measurement of pedestrian trajectories

Clayton, Sarah Elisabeth January 2016 (has links)
Pedestrian movement is unconstrained. For this reason it is not amenable to mathematical modelling in the same way as road trac. Individual pedestrians are notoriously difficult to monitor at a microscopic level. This has led to a lack of primary data that can be used to develop reliable models. Although video surveillance is cheap to install and operate, video data is extremely expensive to process for this purpose. An alternative approach is to use passive infrared detectors that are able to track individuals unobtrusively. This thesis describesthe use of a low cost infrared sensor for use in tracking pedestrians. The sensor itself, manufactured by a British company, is designed to count people crossing an arbitrary datum line. However, with the development of additional software, the functionality of these sensors can be extended beyond their original design specication. This allows the trajectories of individual pedestrians to be tracked. Although the field of view of each sensor is relatively small (44 m), five were deployed in a busy indoor corridor, covering most of its length. In this research, the technical challenges involved in using the sensors in this way are addressed. Statistics derived from the data collected are then compared to other studies at this scale.
7

O movimento de pedestres no entorno de nós de transportes em São Paulo: o espaço público como ambiente de interconexão entre modais nos casos Consolação/Paulista e Lapa.

Soares, Isabelle Cristina Maciel de Brito 10 February 2015 (has links)
Submitted by Evaldo Araújo (1107795@mackenzie.br) on 2016-05-12T23:23:49Z No. of bitstreams: 1 Isabelle Cristina Maciel de Brito Soares.pdf: 197042633 bytes, checksum: b1c9571c5aad8902f5e4727baadcc171 (MD5) / Made available in DSpace on 2016-05-12T23:23:49Z (GMT). No. of bitstreams: 1 Isabelle Cristina Maciel de Brito Soares.pdf: 197042633 bytes, checksum: b1c9571c5aad8902f5e4727baadcc171 (MD5) Previous issue date: 2015-02-10 / This academic dissertation proposes to answer the following question "How the quality of public spaces adjacent to transportation nodes can affect the movement of pedestrians in interchange between transport modes, especially metro/bus and train/bus?” The transport nodes are points in urban territory that concentrates and redistributes the travelers of the systems in different directions, and pedestrians are the protagonists of these exchanges that occurs when they use linear or open public spaces for interchange. Consolation/Paulista and Lapa focus upon centralities with significant concentration of employment and demand of transportation and located in the southwestern region of São Paulo. The city territory was developed by an urban model that neglected the importance of the human scale spaces to the detriment of the traffic of automobile. This reality contrasts with the current dynamic of globalization where the evolution of technology and multitude of activities cause effect on the regional and local scale and on the movement of pedestrians in urban areas. The gradual increase of the urban population, individualization of travels and the growth of walk trips require expansion of pedestrian mobility and quality of public spaces. The analysis of this dissertation is divided into two phases; first the analysis of the composition of public spaces and current conditions of its elements in the spaces around the nodes Consolation/Paulista and Lapa to then analyze the movement of pedestrians is presented through a method of observation of public spaces - extracted and adapted from Jan Gehl (2013) researches. The result of this research was to understand how microaccessibility in pedestrian circulation spaces are neglected. The methodology used is a potential tool for researchers and planners, and could be part of the urban planning process for the development of an appropriate urban design. Walking is not considered a transportation mode that integrates with the rest of the transport system and the low quality of interchange spaces impacts on pedestrian movement mainly because there’s no urban design for those specific spaces. The human scale becomes a priority in the planning of the contemporary city and the composition of the adjacent spaces to transport us has a central role in urban mobility and accessibility. / Esta Dissertação parte da seguinte pergunta “Como a qualidade dos espaços públicos, adjacentes aos nós de transportes, influenciam no movimento de pedestres e na sua interconexão com os modos de transporte, com destaque para metrô/ônibus e trem/ônibus?”. Os nós de transportes são pontos que concentram e redistribuem os usuários dos sistemas em diversas direções, sendo o pedestre o protagonista destas trocas ocorridas ao utilizar os espaços públicos lineares e abertos para fazer interconexão. Os estudos caso Consolação/Paulista e Lapa, localizam-se em centralidades com significativa concentração de emprego e demanda dos sistemas de transportes, situadas na região sudoeste de São Paulo. O município desenvolveu-se por meio de um modelo de cidade que negligenciou a importância da composição do espaço para o pedestre, em detrimento da circulação do automóvel. Essa realidade se contrapõe com as atuais dinâmicas de globalização, onde a evolução de tecnologia e multiplicidade de atividades causam efeito na escala regional, local e no movimento dos pedestres no meio urbano. O gradativo aumento da população urbana e viagens individuais e o crescimento dos índices de viagens a pé exigem ampliação da mobilidade peatonal e qualidade dos espaços comuns. A análise desta dissertação é dividida em duas fases; primeiramente foi feita a análise da composição dos espaços públicos e condições atuais de seus elementos no entorno dos nós Consolação/Paulista e Lapa para, então, analisar do movimento de pedestres por meio de um método de observação dos espaços públicos - extraído e adaptado dos estudos de Jan Gehl (2013). Por meio dos resultados desta pesquisa foi possível entender a negligência para com a microacessibilidade dos espaços de circulação pedonal. A metodologia desenvolvida é uma potencial ferramenta para pesquisadores e planejadores e deve fazer parte do processo de planejamento urbano para a elaboração de um desenho urbano adequado. A falta de integração do modal Andar a Pé com o resto do sistema de transporte prejudica o movimento de pedestres no espaço público principalmente pela falta de um desenho urbano. A escala humana torna-se prioritária no planejamento da cidade contemporânea e a composição dos espaços adjacentes aos nós de transportes tem um papel central à mobilidade urbana e acessibilidade.
8

Modelagem, mensuração e simulação do movimento de pedestres e veículos

Silva, André de Souza January 2010 (has links)
Analisar a probabilidade dos tecidos urbanos exercerem efeitos junto ao movimento de pedestres e veículos, por meio do desenvolvimento de um modelo matemáticoestatístico e, aplicar na prática do planejamento urbano as informações obtidas, são os objetivos que se apresentam. O problema central está em distinguir quais propriedades são relevantes, que relações mantêm entre si, e o quanto explicam o porquê, como e por onde pedestres e veículos se movimentam? Parte-se da hipótese de que propriedades espaciais, formais e funcionais dos tecidos urbanos vinculadas ao sistema de vias, quadras, lotes e edificações, de alguma maneira e intensidade, facilitam, dificultam ou mesmo definem significativamente o movimento de pedestres e veículos, cuja consideração em conjunto e em separado aprimora a modelagem, mensuração e simulação do movimento de pedestres e veículos. As abordagens centradas na demanda de viagens (Entrevista Domiciliar de Origem e Destino) e na configuração espacial urbana (Sintaxe Espacial) fundamentam teoricamente a pesquisa e embasam a construção do método que compatibiliza e conjuga, por meio da construção do modelo matemático-estatístico, denominado modelo de deslocamento 5D, cerca de 20 variáveis do tecido urbano. Em relação aos resultados obtidos, as abordagens adotadas se mostram complementares no entendimento das propriedades que influenciam o movimento de pedestres e veículos em torno dos bairros Higienópolis, Santa Maria Goretti, Passo D’Areia e Vila do IAPI, em Porto Alegre, tomados como estudo de caso. O modelo de deslocamento 5D mostra-se operacionalmente viável e promissor, apresentando resultados estatísticos significativos e com alto grau de confiabilidade. Aproximadamente, 85% do movimento de pedestres e veículos nas áreas em estudo é explicado por medidas que consideram: (i) a articulação e continuidade de percursos alternativos possíveis ao longo de uma via em relação as demais vias em seu entorno imediato; (ii) a contribuição das edificações e dos recuos laterais e frontais em relação aos lotes e quadras na conformação do espaço aberto público; (iii) a variedade de tipologias edilícias e possibilidades de combinação entre si e ocorrência de morfologias simultaneamente; (iv) a relação entre movimento, área construída e comprimento de via; (v) a atribuição de valores às diferentes atividades residenciais e não-residenciais desempenhadas nas edificações; e, (vi) a ponderação dos acessos às edificações. A aplicação do modelo de deslocamento 5D demonstrou ser um instrumento útil na simulação de condições de total transformação ou relativa homogeneidade dos tecidos urbanos, assim como auxiliar ao planejamento urbano, não determinando, entretanto, o que deve ser feito, mas sim, possibilitando entender o que está sendo feito. / An analysis of the likelihood of the urban tissues to exercise effects over pedestrian and vehicle movements, through the development of a statistical and mathematical model, and the practical application of the resulting information, are the intended objectives. The core problem consists in distinguishing which properties are relevant, what are their relations with one another, and to what extent they explain why, how and where pedestrians and vehicles move along? The assumed hypothesis is that spatial, formal and functional properties of the urban tissues linked to the system of lanes, blocks, lots and constructions, in some way or intensity, facilitate, impair or even define significantly the movement of pedestrians and vehicles, whose joint or separate consideration improves the modeling, measuring and simulation of pedestrian and vehicle movement. The approaches focused on traveling needs (Origin and Destination Domicile Interview) and in the urban space configuration (Space Syntax) lay the theoretical foundation for the survey and are the basis for the construction of the method that makes compatible and conjugates, through the construction of the mathematical and statistical model, called 5D displacement model, about 20 variables of the urban tissue. With regard to the results obtained, the adopted approaches show entirely in the understanding of the properties that influence the movement of pedestrians and vehicles surrounding the districts of Higienópolis, Santa Maria Goretti, Passo D’Areia and Vila do IAPI, in Porto Alegre, taken as case study. The 5D Displacement Model proves operationally viable and promising, presenting significant statistical results with a high degree of reliability. Approximately 85% of the movement of pedestrians and vehicles in the studied areas is explained by measures that consider (i) articulation and continuity of alternative routes available along a lane with regard to the other lanes on the immediate surrounding; (ii) the contribution of the buildings and lateral and frontal gaps with regard to the lots and blocks in the conformation of open public space; (iii) a variety of edilicious typologies and possibilities for combinations among themselves and the occurrence of morphologies simultaneously; (iv) the relation between movement, constructed area and length of lane; (v) the attribution of values to the different residential and non-residential activities performed at the buildings; and, (vi) and the ponderation of accesses to the buildings. The application of the 5D displacement model proved to be a useful tool in the simulation of total transformation conditions or the relative homogeneity of the urban tissues, while helping with urban planning, though without determining what should be done, but making it possible to understand what is being done.
9

O fenômeno social do movimento de pedestres em centros urbanos

Zampieri, Fabio Lúcio Lopes January 2012 (has links)
Entender as causas geradoras do movimento de pedestres é muito importante para o planejamento urbano das cidades, a fim de inferir se as atitudes tomadas na concepção e manutenção dos espaços estão de fato contribuindo para o fortalecimento da dinâmica social. No entanto, determinar como funciona o movimento dos pedestres é uma tarefa difícil devido à complexidade das estruturas sociais que criam esse fenômeno. Uma maneira de contornar esse problema é através da criação de modelos que associam diretamente os atributos das calçadas e suas relações. Dentre as metodologias observadas para a construção do modelo, aquelas que mais se adequaram para entender os fatores contidos no espaço urbano foram a sintaxe espacial e o nível de serviço dos passeios. A Sintaxe Espacial ajuda na compreensão desse fenômeno, pois permite a análise das relações espaciais da cidade. No entanto, possui a limitação de prever apenas parte desse movimento e, ainda, só encontrar correlações significativas quando a medida de inteligibilidade (correlação entre a integração e conectividade) apresenta valores elevados. Do mesmo modo, a qualidade do passeio interfere diretamente no modo que o pedestre utiliza esse espaço. O fluxo de pedestre é um fenômeno complexo e, como tal, não pode ser entendido através de relações lineares ou de causa e efeito entre quaisquer variáveis, sejam elas espaciais ou não. Para entender a complexidade desse fenômeno será utilizada a abordagem conexionista das redes neurais artificiais, uma forma de processamento em paralelo com capacidade de trabalhar através de exemplos, generalizando e abstraindo as informações das variáveis e suas ligações. Deste modo, este trabalho pretende apresentar uma abordagem diferenciada para entender parte da dinâmica social através do fenômeno da movimentação de pedestres. / In Urban Planning, understanding pedestrian movement generative causes is key issue. Through it is possible to check if public policies targeting maintenance and improvement of open spaces are effectively reaching their goals in strengthening social dynamics. Nevertheless it is quite difficult to determinate how pedestrian movement functions due to social structure complexity driving these phenomena emergency and the extensive row of variables underlying it. One of the most effective problem-solving tools targeting the subject is modeling sidewalk attributes through the relations held amidst their physical variables and measured levels of use. Among several methods applied in model building, Space Syntax and Sidewalks Service Leveling were those which provided the best suitable tools to face the research problems. Space Syntax methods are helpful to understand the phenomena, since they allow to depict tendencies for pedestrian movement related directly to grid deformation patterns and spatial configuration. But its scope is limited since it substantiates movement potential rather than measured. Also because correlations found between pedestrian movement measurements and urban morphology are only robust when Integibility measure (correlating Integration to connectivity) is high. Likewise, sidewalk physical qualities are directly responsible for the way in which people move around, establish their routes or use public spaces, fulfilling or hijacking movement potential standards. Pedestrian fluxes are complex phenomena and being such, unable to be pictured by linear relations or explained through cause – effect conditioning between spatial or a-spatial variables. To depict the interdependence between variables amidst these phenomena complexity we opted for a connective approach found at Artificial Neural Nets; a way of parallel data processing which is able to modeling from samples due to their generalization capacity and that of extract information from the structuring variables and their relationships and linkages. Being so, this research presents an original combination of tools and methods that allow approaching social dynamics starting from pedestrian movement phenomena empirical data.
10

Modelagem, mensuração e simulação do movimento de pedestres e veículos

Silva, André de Souza January 2010 (has links)
Analisar a probabilidade dos tecidos urbanos exercerem efeitos junto ao movimento de pedestres e veículos, por meio do desenvolvimento de um modelo matemáticoestatístico e, aplicar na prática do planejamento urbano as informações obtidas, são os objetivos que se apresentam. O problema central está em distinguir quais propriedades são relevantes, que relações mantêm entre si, e o quanto explicam o porquê, como e por onde pedestres e veículos se movimentam? Parte-se da hipótese de que propriedades espaciais, formais e funcionais dos tecidos urbanos vinculadas ao sistema de vias, quadras, lotes e edificações, de alguma maneira e intensidade, facilitam, dificultam ou mesmo definem significativamente o movimento de pedestres e veículos, cuja consideração em conjunto e em separado aprimora a modelagem, mensuração e simulação do movimento de pedestres e veículos. As abordagens centradas na demanda de viagens (Entrevista Domiciliar de Origem e Destino) e na configuração espacial urbana (Sintaxe Espacial) fundamentam teoricamente a pesquisa e embasam a construção do método que compatibiliza e conjuga, por meio da construção do modelo matemático-estatístico, denominado modelo de deslocamento 5D, cerca de 20 variáveis do tecido urbano. Em relação aos resultados obtidos, as abordagens adotadas se mostram complementares no entendimento das propriedades que influenciam o movimento de pedestres e veículos em torno dos bairros Higienópolis, Santa Maria Goretti, Passo D’Areia e Vila do IAPI, em Porto Alegre, tomados como estudo de caso. O modelo de deslocamento 5D mostra-se operacionalmente viável e promissor, apresentando resultados estatísticos significativos e com alto grau de confiabilidade. Aproximadamente, 85% do movimento de pedestres e veículos nas áreas em estudo é explicado por medidas que consideram: (i) a articulação e continuidade de percursos alternativos possíveis ao longo de uma via em relação as demais vias em seu entorno imediato; (ii) a contribuição das edificações e dos recuos laterais e frontais em relação aos lotes e quadras na conformação do espaço aberto público; (iii) a variedade de tipologias edilícias e possibilidades de combinação entre si e ocorrência de morfologias simultaneamente; (iv) a relação entre movimento, área construída e comprimento de via; (v) a atribuição de valores às diferentes atividades residenciais e não-residenciais desempenhadas nas edificações; e, (vi) a ponderação dos acessos às edificações. A aplicação do modelo de deslocamento 5D demonstrou ser um instrumento útil na simulação de condições de total transformação ou relativa homogeneidade dos tecidos urbanos, assim como auxiliar ao planejamento urbano, não determinando, entretanto, o que deve ser feito, mas sim, possibilitando entender o que está sendo feito. / An analysis of the likelihood of the urban tissues to exercise effects over pedestrian and vehicle movements, through the development of a statistical and mathematical model, and the practical application of the resulting information, are the intended objectives. The core problem consists in distinguishing which properties are relevant, what are their relations with one another, and to what extent they explain why, how and where pedestrians and vehicles move along? The assumed hypothesis is that spatial, formal and functional properties of the urban tissues linked to the system of lanes, blocks, lots and constructions, in some way or intensity, facilitate, impair or even define significantly the movement of pedestrians and vehicles, whose joint or separate consideration improves the modeling, measuring and simulation of pedestrian and vehicle movement. The approaches focused on traveling needs (Origin and Destination Domicile Interview) and in the urban space configuration (Space Syntax) lay the theoretical foundation for the survey and are the basis for the construction of the method that makes compatible and conjugates, through the construction of the mathematical and statistical model, called 5D displacement model, about 20 variables of the urban tissue. With regard to the results obtained, the adopted approaches show entirely in the understanding of the properties that influence the movement of pedestrians and vehicles surrounding the districts of Higienópolis, Santa Maria Goretti, Passo D’Areia and Vila do IAPI, in Porto Alegre, taken as case study. The 5D Displacement Model proves operationally viable and promising, presenting significant statistical results with a high degree of reliability. Approximately 85% of the movement of pedestrians and vehicles in the studied areas is explained by measures that consider (i) articulation and continuity of alternative routes available along a lane with regard to the other lanes on the immediate surrounding; (ii) the contribution of the buildings and lateral and frontal gaps with regard to the lots and blocks in the conformation of open public space; (iii) a variety of edilicious typologies and possibilities for combinations among themselves and the occurrence of morphologies simultaneously; (iv) the relation between movement, constructed area and length of lane; (v) the attribution of values to the different residential and non-residential activities performed at the buildings; and, (vi) and the ponderation of accesses to the buildings. The application of the 5D displacement model proved to be a useful tool in the simulation of total transformation conditions or the relative homogeneity of the urban tissues, while helping with urban planning, though without determining what should be done, but making it possible to understand what is being done.

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