Understanding the City-transport System of Urban Agglomeration through Improved Space Syntax Analysis

2021 ◽  
pp. 016001762110238
Author(s):  
Wensheng Zheng ◽  
Nanqiao Du ◽  
Xiaofang Wang
Keyword(s):  
Transport System ◽  
Urban Areas ◽  
Spatial Configuration ◽  
Spatial Perception ◽  
Space Syntax ◽  
Scale Space ◽  
Urban Agglomeration ◽  
Small Scale ◽  
Change Of Scale ◽  
Space Infrastructure

From the perspective of city-transport system, this article applies space syntax to analyze the physical integration of cities. Traditionally, space syntax is mainly applied to urban areas, buildings, and other scales. However, when space syntax is applied to the configuration analysis of urban agglomeration, the change of scale causes changes in spatial perception and human behavioral patterns. Thus, we present a new method of space syntax. This method defines the lane and track between entrance and exit, and city as node, which represents small-scale space. Infrastructure, such as stations, entrances, and exits, are defined as links. The urban agglomeration is thus transformed into a topological network, and then displayed as a bipartite graph of cities and routes. We take the urban agglomerations in the Yangtze River Middle Reaches (YRMR) as the case study area and analyze its spatial configuration from the perspectives of local and integral, interfaces at different scales, gaps, evolution of the dual foreground and background networks, and evolution of the transport networks. The results reveal the way cities integrate with each other and further reveal the multi-scale spatial structure of urban agglomeration.

scholarly journals THE IMPACT OF ENVIRONMENTAL CONSTRUCTION ON THE SPATIAL CONFIGURATION OF TRADITIONAL IRANIAN HOUSING (CASE STUDY: COMPARISON OF DEZFUL AND BOROUJERD TRADITIONAL HOUSING)

2021 ◽  
Vol 45 (1) ◽  
pp. 50-59
Author(s):  
Pedram Hessari ◽  
Farhad Chegeni
Keyword(s):  
Spatial Configuration ◽  
Spatial Perception ◽  
Space Syntax ◽  
Public And Private ◽  
Behavioral Systems ◽  
Spatial Differences ◽  
Library Studies ◽  
Visual Privacy ◽  
And Control ◽  
The Impact

The cities of Dezful and Boroujerd can be considered a treasure trove of traditional houses in Iran whose social, functional, and cultural roots are reflected in their architectural body. Traditional housing includes and expresses the lifestyles and behavioral systems of its inhabitants. Therefore, by analyzing the spatial structure in different traditional dwellings, we can understand the structural differences in them. The main purpose of this study is to identify and express the structure and spatial differences in traditional housing in Dezful and Boroujerd, which have many differences in terms of environmental structure. This study seeks to answer the question: What are the differences between structural patterns and spatial configuration in traditional housing in Dezful and Boroujerd? The method of this research is generally qualitative and software that includes analytical-descriptive approaches and logical reasoning. First, using observation, field survey, and library studies, the desired maps are obtained and the research parameters such as spatial integrity, visual privacy and control, and access are determined. In the next step, the maps of selected research houses are analyzed and analyzed in Space Syntax software, which is specialized software for space syntax, and the patterns of spatial configuration in traditional houses of Dezful and Boroujerd are expressed. The results show that the permeability and readability of more spaces due to the depth of each space and better spatial perception by individuals in traditional houses in Dezful is more than traditional houses in Boroujerd. In contrast, in traditional houses in Boroujerd, spatial stratification and spatial hierarchy, the creation of public and private layers due to the shape and type of housing, and also environmental security in the residential complex is more than the examples of traditional housing in Dezful.

scholarly journals The impact of a new transport system on the neighbourhoods surrounding the stations: The cases of Bermondsey and West Ham, London

2017 ◽  
Author(s):  
Po Nien Chen ◽  
Kayvan Karimi
Keyword(s):  
Transport System ◽  
Spatial Configuration ◽  
Space Syntax ◽  
Urban Regeneration ◽  
Urban Morphology ◽  
Sustainable Transportation ◽  
Transport Systems ◽  
Line Extension ◽  
The Social ◽  
The Impact

The impact of a new transport system on the neighbourhoods surrounding the   stations: The cases of Bermondsey and West Ham, London Po Nien Chen, Kayvan Karimi Space Syntax Laboratory, The Bartlett School of Architecture, University College London, UKE-mail: [email protected], [email protected] Keywords: Space Syntax, Jubilee Line Extension, urban regeneration Conference topics and scale: Tools of analysis in urban morphology     The impact of new public transport system on the towns and suburbs has been widely considered to be a significant aspect of urban development. However, the spatial configurations which could stimulate the transformation around the neighbourhoods of the station have not been clearly identified. It could be argued that the implementation of transport systems and the creation of new stations would enhance the mobility of the transport network and the accessibility around the station’s vicinity. Furthermore, the dynamics of pedestrian flow, generated by the new transport system might transform the social, cultural and economic activities around the stations. Therefore, the aims of this study are to analyse how the spatial configuration and the urban formation are affected by the implementation of stations and understand how the new stations emerge in the urban form.  The Jubilee Line Extension (JLE) in East London, which started to operate in 2000, plays an essential role in connecting Central London with the recently developed financial district in the east. This study focuses on two stations located along the JLE, Bermondsey and West Ham, which have different topological and demographic characteristics. To determine whether the stations integrate cohesively with the urban environment, this study applies Space Syntax methods of spatial network analysis to evaluate the spatial characteristics and compares with GIS data of the house prices and land use distribution before and after the JLE. The results demonstrate a strong correlation between pedestrian movement and the distribution of residential and commercial activities within the street network structure. The study also reveals the strength and weakness of the stations, which are embedded within urban structures and suggests urban regeneration strategies through improving the accessibility and public space design.  Reference Chorus, P., Bertolini, L., (2016) ‘Developing transit-oriented corridors: Insights from Tokyo’, International Journal of Sustainable Transportation, 10:2, 86-95. Hillier, B and Hanson, J. (1984) The Social Logic of Space (Cambridge University Press, Cambridge). Kusumo, C, M. (2005) ‘Is a railway station a central urban space? Spatial configuration study of retail distribution pattern around railway stations’, Proceedings, 5th International Space Syntax Symposium, (Delft)

Design and Operation of Small Wastewater Treatment Plants by the Microbial Film Process

1990 ◽  
Vol 22 (3-4) ◽  
pp. 139-144 ◽  
Author(s):  
S. Iwai ◽  
Y. Oshino ◽  
T. Tsukada
Keyword(s):  
Urban Areas ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Small Scale ◽  
Small Communities ◽  
Fishing Villages ◽  
Sewer Systems ◽  
Water Treatment Plants ◽  
History Of ◽  
Microbial Film

Although the ratio of sewer systems to population in Japan has been improving in recent years, the construction of sewer systems in small communities such as farming or fishing villages, etc. had lagged behind that of urban areas. However, construction of small-scale sewer systems in farming and fishing villages has been actively carried out in recent years. This report explains the history of the promotion of small-scale sewer systems, why submerged filter beds are being employed in many cases, and introduces the design, operation and maintenance of representative waste-water treatment plants in farming and fishing villages which incorporate de-nitrogen and dephosphorization.

scholarly journals The Impact of the Ring Roads on the Location Pattern of Shops in Town and City Centres. A Space Syntax Approach

2021 ◽  
Vol 13 (7) ◽  
pp. 3927
Author(s):  
Akkelies van Nes
Keyword(s):  
Urban Areas ◽  
Space Syntax ◽  
Optimal Location ◽  
Spatial Integration ◽  
Street Network ◽  
Location Pattern ◽  
Ring Road ◽  
Road Projects ◽  
The Impact ◽  
City Centres

This contribution demonstrates how inner ring roads change the location pattern of shops in urban areas with the application of the space syntax method. A market rational behaviour persists, in that shop owners always search for an optimal location to reach as many customers as possible. If the accessibility to this optimal location is affected by changes in a city’s road and street structure, it will affect the location pattern of shops. Initially, case studies of inner ring road projects in Birmingham, Coventry, Wolverhampton, Bristol, Tampere, and Mannheim show how their realisation affect the spatial structure of the street network of these cities and the location pattern of shops. The results of the spatial integration analyses of the street and road network are discussed with reference to changes in land-use before and after the implementation of ring roads, and current space syntax theories. As the results show, how an inner ring road is connected to and the type of the street network it is imposed upon dictates the resulting location pattern of shops. Shops locate and relocate themselves along the most spatially-integrated streets. Evidence on how new road projects influence the location pattern of shops in urban centres are useful for planning sustainable city centres.

scholarly journals Canard optimization for enhancing the performance of small horizontal axis wind turbine at low wind speeds

2020 ◽  
Vol 37 ◽  
pp. 63-71
Author(s):  
Yui-Chuin Shiah ◽  
Chia Hsiang Chang ◽  
Yu-Jen Chen ◽  
Ankam Vinod Kumar Reddy
Keyword(s):  
Wind Turbine ◽  
Urban Areas ◽  
Horizontal Axis ◽  
Power Coefficient ◽  
Peak Performance ◽  
Small Scale ◽  
Horizontal Axis Wind Turbine ◽  
Wind Speeds ◽  
Optimum Parameters ◽  
Low Wind Speeds

ABSTRACT Generally, the environmental wind speeds in urban areas are relatively low due to clustered buildings. At low wind speeds, an aerodynamic stall occurs near the blade roots of a horizontal axis wind turbine (HAWT), leading to decay of the power coefficient. The research targets to design canards with optimal parameters for a small-scale HAWT system operated at variable rotational speeds. The design was to enhance the performance by delaying the aerodynamic stall near blade roots of the HAWT to be operated at low wind speeds. For the optimal design of canards, flow fields of the sample blades with and without canards were both simulated and compared with the experimental data. With the verification of our simulations, Taguchi analyses were performed to seek the optimum parameters of canards. This study revealed that the peak performance of the optimized canard system operated at 540 rpm might be improved by ∼35%.

scholarly journals Implications of Autonomous Vehicles for Accessibility and Transport Equity: A Framework Based on Literature

2021 ◽  
Vol 13 (8) ◽  
pp. 4448
Author(s):  
Alberto Dianin ◽  
Elisa Ravazzoli ◽  
Georg Hauger
Keyword(s):  
Conceptual Model ◽  
Transport System ◽  
Urban Areas ◽  
Autonomous Vehicles ◽  
Scientific Literature ◽  
Social Groups ◽  
Future Studies ◽  
Social Accessibility ◽  
The Relationship

Increasing accessibility and balancing its distribution across space and social groups are two fundamental goals to make transport more sustainable and equitable. In the next decades, autonomous vehicles (AVs) could significantly transform the transport system, influencing accessibility and transport equity. In particular, depending on the assumed features of AVs (e.g., private or collective) and the considered spatial, social, and regulative context (e.g., rural or urban areas), impacts may be very different. Nevertheless, research in this field is still limited, and the relationship between AV assumptions and accessibility impacts is still partially unclear. This paper aims to provide a framework of the key and emerging aspects related to the implications of AVs for accessibility and transport equity. To set this framework, we perform an analysis of the scientific literature based on a conceptual model describing the implications of AVs for the distribution of accessibility across space and social groups. We recognize four main expected impacts of AVs on accessibility: (1) accessibility polarization, (2) accessibility sprawl, (3) exacerbation of social accessibility inequities, and (4) alleviation of social accessibility inequities. These impacts are described and analyzed in relation to the main AV assumptions expected to trigger them through different mechanisms. Based on the results, some recommendations for future studies intending to focus on the relation between AVs, accessibility, and transport equity are provided.

scholarly journals Understanding Spatial Variability of NO2 in Urban Areas Using Spatial Modelling and Data Fusion Approaches

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 179
Author(s):  
Said Munir ◽  
Martin Mayfield ◽  
Daniel Coca
Keyword(s):  
Data Fusion ◽  
Spatial Variability ◽  
Urban Areas ◽  
Road Traffic ◽  
Dispersion Model ◽  
Low Cost ◽  
Spatial Modelling ◽  
City Centre ◽  
Small Scale ◽  
The City

Small-scale spatial variability in NO2 concentrations is analysed with the help of pollution maps. Maps of NO2 estimated by the Airviro dispersion model and land use regression (LUR) model are fused with measured NO2 concentrations from low-cost sensors (LCS), reference sensors and diffusion tubes. In this study, geostatistical universal kriging was employed for fusing (integrating) model estimations with measured NO2 concentrations. The results showed that the data fusion approach was capable of estimating realistic NO2 concentration maps that inherited spatial patterns of the pollutant from the model estimations and adjusted the modelled values using the measured concentrations. Maps produced by the fusion of NO2-LCS with NO2-LUR produced better results, with r-value 0.96 and RMSE 9.09. Data fusion adds value to both measured and estimated concentrations: the measured data are improved by predicting spatiotemporal gaps, whereas the modelled data are improved by constraining them with observed data. Hotspots of NO2 were shown in the city centre, eastern parts of the city towards the motorway (M1) and on some major roads. Air quality standards were exceeded at several locations in Sheffield, where annual mean NO2 levels were higher than 40 µg/m3. Road traffic was considered to be the dominant emission source of NO2 in Sheffield.

scholarly journals Movement Around Real and Virtual Cluttered Environments

2005 ◽  
Vol 14 (5) ◽  
pp. 580-596 ◽  
Author(s):  
Simon Lessels ◽  
Roy A. Ruddle
Keyword(s):  
Real World ◽  
Search Task ◽  
Scale Space ◽  
Visual Scene ◽  
Field Of View ◽  
Small Scale ◽  
High Fidelity ◽  
Cluttered Environments ◽  
The Real ◽  
Desktop Virtual Environment

Two experiments investigated participants' ability to search for targets in a cluttered small-scale space. The first experiment was conducted in the real world with two field of view conditions (full vs. restricted), and participants found the task trivial to perform in both. The second experiment used the same search task but was conducted in a desktop virtual environment (VE), and investigated two movement interfaces and two visual scene conditions. Participants restricted to forward only movement performed the search task quicker and more efficiently (visiting fewer targets) than those who used an interface that allowed more flexible movement (forward, backward, left, right, and diagonal). Also, participants using a high fidelity visual scene performed the task significantly quicker and more efficiently than those who used a low fidelity scene. The performance differences among all the conditions decreased with practice, but the performance of the best VE group approached that of the real-world participants. These results indicate the importance of using high fidelity scenes in VEs, and suggest that the use of a simple control system is sufficient for maintaining one's spatial orientation during searching.

Local Communities as a Tool for the Development of Municipal Democracy: German Experience and Lessons for Russia

2020 ◽  
Vol 29 (5) ◽  
pp. 74-88
Author(s):  
Aleksandr Larichev ◽  
Emil Markwart
Keyword(s):  
Local Government ◽  
Urban Areas ◽  
Local Population ◽  
Local Communities ◽  
The State ◽  
Household Waste ◽  
Small Scale ◽  
Issue Management ◽  
State Management ◽  
Municipal Level

Local government as a political, legal and social institution finds itself in a very difficult period of development in Russia. The long-established tendency of its subordination to the state has intensified today in connection with the newly adopted constitutional amendments. At the same time, it seems obvious that further “embedding” of local government into the state management vertical, in the absence of any positive effect in terms of solving socio-economic and infrastructural problems, will inevitably lead to other hard to reverse, negative results both for local government institutions and the system of public authority as a whole. The normal functioning of local government requires, however, not only the presence of its sufficient institutional and functional autonomy from the state, but also an adequate territorial and social base for its implementation. To ensure the formation of viable territorial collectives, especially in urban areas, it seems appropriate to promote the development of self-government based on local groups at the intra-municipal level. Such local groups can independently manage issues of local importance on a small scale (landscaping, social volunteering, and neighborly mutual assistance), and provide, within the boundaries of a local territory, due civil control over the maintenance by municipal authorities of more complex and large-scale local issues (repair and development of infrastructure, removal of solid household waste and more). At the same time, the development of local communities can by no means be a self-sufficient and substitutional mechanism, whose introduction would end the need for democracy in the full scope of municipal structures overall. In this regard, the experience of local communities’ development in Germany, a state with legal traditions similar to Russian ones, with a centuries-old history of the development of territorial communities and a difficult path to building democracy and forming civil society, seems to be very interesting. Here, the progressive development of local forms of democracy and the participation of residents in local issue management are combined with stable mechanisms of municipal government, and the interaction of municipalities with the state does not torpedo the existing citizen forms of self-government. At the same time, the experience of Germany shows that the decentralization of public issue management which involves the local population can only be effective in a situation where, in addition to maintaining a full-fledged self-government mechanism at the general municipal level, relevant local communities are endowed with real competence and resources to influence local issue decision-making. The role of formalized local communities in urban areas, as the German experience shows, can not only facilitate the decentralization of solving public problems, but can also help in timely elimination of triggers for mobilizing citywide supercollectives with negative agendas. This experience seems useful and applicable in the Russian context.

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