A Spatial Livability Index for dense urban centers

This article introduces a Spatial Livability Index based on geographically weighted principal component analysis. We study the case of 203 subzones in Singapore which are dense geographic boundaries in terms of population and built-up area. These regions share spatial correlations of objective measures of livability such as open spaces or community facilities. The proposed objective indicator captures the “hidden” patterns of livability provided by neighboring locations. Moreover, the results allow to identify atypical areas, that is geographical units that score very good/bad under the spatial approach but very bad/good under the non-spatial framework of livability.

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Left open spaces—light shafts in Iran and side setbacks in Japan: a socio-spatial approach to study awareness in open spaces in urban residential blocks

City Territory and Architecture ◽

10.1186/s40410-021-00131-4 ◽

2021 ◽

Vol 8 (1) ◽

Author(s):

Amir Shojai ◽

Kaveh Fattahi

Keyword(s):

Urban Design ◽

Social Impact ◽

Open Spaces ◽

Social Responses ◽

Privacy Concerns ◽

Spatial Approach ◽

Development Policies ◽

Two Cities ◽

Similarities And Differences ◽

Different Cultures

AbstractThis article addresses an urban design issue at a micro-urban design level; the spaces between buildings on neighboring blocks or the side yards, how such spaces they are used, and their social impact on residents. A socio-psychological approach was taken into studying arrangements of these open spaces in contemporary residential zones in—side setback spaces in Japan, and backyards and light shafts in Iran in terms of their similarities and differences. The research involves development policies and interviews with residents in buildings where such conditions prevail, in two different contexts—Shiraz, Iran and Sapporo, Japan, two cities comparative in their size and densities for their cultural differences might have on their social responses. Seventy-two respondents in Shiraz District 6 were recruited by Shiraz University architecture students and in Japan, 75 responses were collected in Central Ward, Sapporo, from various groups of residents. Majority of the windows to side setbacks in Sapporo had matte glasses; therefore, privacy concerns were not among residents. Lack of maintenance in inner courtyards was a major concern for Iranians and they see side setbacks as a challenge to their and safety, however providing opportunities for neighborly atmosphere, if the windows have matte glasses and provided with guards. It argues that contacts are not controlled are perceived the same in two different cultures; however, the arrangement of open spaces play a role in light reception and ventilation in Japanese example.

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Application of geographically weighted principal component analysis and fuzzy approach for unsupervised landslide susceptibility mapping on Gish River Basin, India

Geocarto International ◽

10.1080/10106049.2020.1778105 ◽

2020 ◽

pp. 1-24 ◽

Cited By ~ 4

Author(s):

Tirthankar Basu ◽

Arijit Das ◽

Swades Pal

Keyword(s):

Principal Component Analysis ◽

River Basin ◽

Landslide Susceptibility ◽

Principal Component ◽

Component Analysis ◽

Susceptibility Mapping ◽

Landslide Susceptibility Mapping ◽

Fuzzy Approach ◽

Weighted Principal Component

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Optimization of Process Parameters for Submerged Arc Welding by Weighted Principal Component Analysis Based Taguchi Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.622-623.45 ◽

2012 ◽

Vol 622-623 ◽

pp. 45-50 ◽

Cited By ~ 1

Author(s):

Joydeep Roy ◽

Bishop D. Barma ◽

J. Deb Barma ◽

S.C. Saha

Keyword(s):

Principal Component Analysis ◽

Taguchi Method ◽

Arc Welding ◽

Principal Component ◽

Traverse Speed ◽

Component Analysis ◽

Submerged Arc Welding ◽

Bead Geometry ◽

Weighted Principal Component ◽

Submerged Arc

In submerged arc welding (SAW), weld quality is greatly affected by the weld parameters such as welding current, traverse speed, arc voltage and stickout since they are closely related to weld joint. The joint quality can be defined in terms of properties such as weld bead geometry and mechanical properties. There are several control parameters which directly or indirectly affect the response parameters. In the present study, an attempt has been made to search an optimal parametric combination, capable of producing desired high quality joint in submerged arc weldment by Taguchi method coupled with weighted principal component analysis. In the present investigation three process variables viz. Wire feed rate (Wf), stick out (So) and traverse speed (Tr) have been considered and the response parameters are hardness, tensile strength (Ts), toughness (IS).

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