scholarly journals A Comparative Evaluation of Utility Value Based on User Preferences for Urban Streets: The Case of Seoul, Korea

2021 ◽  
Vol 13 (9) ◽  
pp. 5073
Author(s):  
Minho Seo ◽  
Seiyong Kim

Currently, there is a lack of objective evaluations clarifying characteristics of urban streets from the users’ perspective, particularly regarding the most effective spatial composition. This study investigated the value of spatial components of urban streets preferred by users through a conjoint analysis based on utility value for six streets representing street types in Seoul and evaluated relative preferences for the main characteristics of urban streets in terms of amenity, placeness, and accessibility. The analysis showed that users consider “amenity” as the most important characteristic of urban streets; “green space composition” was rated highest for utility value. The value exchange relationship of utility related to placeness and amenity within a certain threshold level was also confirmed for each of the three characteristics of urban streets. These results show that prioritizing improvements to amenities and green space promotes urban streets policies and projects, and strengthening placeness-related spatial elements is effective once a certain amenity level is secured. This study contributes to the discussion how to minimize differences in planning and user experience for urban streets by objectifying the relationship between user preferences and characteristics of urban streets through utility value.

2020 ◽  
Vol 12 (1) ◽  
pp. 49
Author(s):  
Daud Irundu ◽  
Mir A Beddu ◽  
Najmawati Najmawati

Global warming is one of the major environmental issues of this century. Carbon dioxide (CO2) emissions are the main cause of global warming. Green open space (RTH) such as urban parks, urban forests and green lines play an important role in mitigating global warming and climate change in urban areas because it is able to reduce CO2 from the atmosphere. This study aims to determine the potential of biomass and carbon stored in the Green Open Green Space of Polewali, West Sulawesi. Data collection for stored biomass and carbon is carried out at three green space locations including; Urban forest and city park and green lane each made three plots measuring 20 m x 20 m, and three plots on the Green Line measuring 1200 m. Retrieval of data by measuring tree height and diameter, analysis to obtain the dry volume, biomass and carbon stored for each tree species contained in the Polewali green space. Biomass is obtained by the formula M = BJ x Vk x BEF, the stored carbon value is obtained from the product of biomass by 0.47. The magnitude of the relationship of volume with biomass and carbon uses a regression equation (Ŷ=a+bX). The results show there are types of Glodokan (Polyalthia longifolia), Johar (Senna siamea), Mahogany (Swetenia sp) and Trambesi (Samanea saman) which are spread in the Polewali open green space. Trambesi is a type that has dominant biomass and stored carbon of 381.95 (tons / ha) and 179.52 (ton/ha). Green lane is the type of green space that has the most stored carbon and is currently 440.94 (ton/ha) and 207.24 (ton/ha). The overall green space biomass is 571.83 (ton/ha) and stored carbon is 268.76 (ton/ha) found in urban forests, urban gardens and green belt. The relationship of volume with biomass and stored carbon shows a very strong relationship with the coefficient of determination (R2) of 0.96.  


2014 ◽  
Vol 42 (7) ◽  
pp. 669-676 ◽  
Author(s):  
Regina Reklaitiene ◽  
Regina Grazuleviciene ◽  
Audrius Dedele ◽  
Dalia Virviciute ◽  
Jone Vensloviene ◽  
...  

2019 ◽  
Vol 23 (4) ◽  
pp. 27-45
Author(s):  
Jacek Schindler

An economy of values: Between price and the hidden hand of culture The term value is commonly used to describe key economic processes and refers to objects, people, economy, and economics. Among the many issues relevant to the relationship of culture and economy the use of the term value in reference to the object — especially in the context of utility value and exchange value — is of particular interest. In cultural studies, a mark-to-market utility is combined with existential i.e.biological and psychological requirements and civilizational advance, which stand in opposition to culture. The author indicates, however, that the sources of the utility of merchandise purchased on a daily basis are manifold and are nowadays primarily related to cultural preferences. As a consequence, the possibility of replacing the current economic model with a more sustainable one is largely blocked by the hidden hand of culture.


2020 ◽  
Vol 4 (2) ◽  
pp. 1-22
Author(s):  
Muhammad Umar Farooq ◽  
Syed Asif Ali Naqvi ◽  
Shaoan Huang

Past studies failed to solve the problem of nonlinearity and threshold in the association of mother education with infants’ health. This research diagnoses and investigates the existence of threshold. Successive eight educational plans during 1955-1998 in Pakistan record a large variation in the educational policies and investment and a great focus on primary schooling. It motivates us to select Pakistan and construct the instrument for purging the coefficients of mother education from endogeneity bias along with the threshold impact. IV regression outcomes disclose that only 11-16 years of mother education has significant impact on infants’ health outcomes, implying a threshold level at 6-10 years schooling. Thus, it is argued that low cognitive capability via lower level of education, poor educational quality, ineffective education for health even in the text books of 6-10 years of education leads to a threshold in the relationship of mother education with child nutrition.


2011 ◽  
Vol 3 (3) ◽  
pp. 190-197 ◽  
Author(s):  
Mehwish Aziz Khan ◽  
Attiya Javid .

This study investigates the relationship of mergers & acquisitions with the interest spread of the banking industry in Pakistan. To assess whether the merger of Pakistani banks were a success or otherwise, profitability, liquidity ratios, and net interest spread are computed which are considered essential to judge the financial performance of any bank. Data is taken for the period of 1997-2010 and this data have been used to calculate the interest spread and market concentration. Market Concentration is calculated by using Herfindahl-Hirschman Index or HHI. Findings show that the profitability and net interest spread of two merged banks declines as a result of mergers. It is also revealed that Concentration of the banking industry shows a rising trend during 2008 and 2009 after mergers occurred during 2007 as a result of merger. However, it shows the level that almost approaches the threshold i.e. 1000. One or two more mergers can push up threshold level of HH index. It means that it is the right time for banking industry of Pakistan to be reviewed by any antitrust authority to maintain the optimum level of competition.


2018 ◽  
Vol 10 (3) ◽  
pp. 500-509
Author(s):  
Deden Nurjaman ◽  
Teguh Husodo ◽  
Erri Noviar Megantara ◽  
Herri Y. Hadikusumah ◽  
Indri Wulandari

Padjadjaran University (UNPAD) Jatinangor is currently conducting green Campus program. To support the program, a study of biota living in it, as one of the benchmarks of good or bad environmental conditions, is needed. The green space of Jatinangor Campus is divided into two clusters namely Cluster I green space (Campus Forest) and green space Cluster II (Campus Non Forest). The objective of the research was to know the relationship between diversity of birds with diversity of plants in the green space of Cluster I (Campus Forest) and Cluster II (Campus Non Forest) UNPAD Campus Jatinangor as one of the parameters of successful development of green Campus. This research is descriptive-explorative with census method on bird species and plant composition from green spaces of Cluster I (Campus Forest) and Cluste II (Campus Non Forest) Campus UNPAD Jatinangor. From the observations in Cluster I, we identified 46 species of birds and 77 species of plants, whereas in Cluster II, we identified 32 species of birds and 74 types of plants. The number of bird species is directly proportional to the number of plant species from Cluster I and Cluster II green spaces. From this study it was concluded that the diversity of tree species supports the diversity of bird species.


2020 ◽  
Vol 58 (4) ◽  
Author(s):  
Anna Rogozińska-Pawełczyk

The psychological contract refers to presumed and subjective beliefs in relation to the exchange relationship, considered mainly between employees and employers. An immanent part of the psychological contract is its subjectivity and the relationship of exchange of expectations, promises or commitments of both parties to the employment relationship. The conditions in which modern organisations have to operate justify the use of the psychological contract for the analysis of employment relationships, but do not yet take into account the emerging new form of relationship at the workplace. Currently, thanks to the development of new technologies, including artificial intelligence, the role of robots in the workplace is growing. The aim of the article is to outline the framework for building the involvement of employees in technologically, socially and emotionally advanced forms of artificial intelligence. The manifestations of workers' interactions with social robots within the framework of a contractual partnership will be defined. To this end, the arguments for the possibility of concluding a psychological contract between a human and a robot based on the theory of exchange and the standard of reciprocity, which can set new directions for research in this area, are reviewed.


Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.


Sign in / Sign up

Export Citation Format

Share Document