• Journal of Korean Society for Geospatial Information Science
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• v.21 no.3
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• pp.3-9
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• 2013

As interest in green growth picks up, the importance of bicycles which are an environment friendly means of communication has been magnified. However, bicycle routes which are the base of bicycles are designed without considering topographic elements and thus many users are experiencing inconvenience in using bicycles. The present study presents a routing technique to select optimal routes when selecting routes in commuting to school utilizing bicycles. To this end, a formula for optimum route calculation considering slope and intersections was drawn and a method to select optimum routes by applying modified Dijkstra Algorithms was studied. According to the results, the bicycle routes for commuting to school should be selected by the shortest time rather than the shortest distances to the destination, because it required reach the destination faster. Therefore when selecting the routes, it must be based on the shortest time considering waiting time due to crosswalks or crossroads and speed variations due to slopes.

• Korean Journal of Child Studies
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• v.28 no.4
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• pp.51-71
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• 2007

Factors considered by mothers when choosing a kindergarten for their child were analyzed by mother's age, education level, and employment status. Questionnaires (Seo, 2002; Kim, 2001; Park, 1997) targeted 636 mothers of kindergarteners from 12 different kindergartens. Results were (1) in order of importance mothers considered : physical environment, tuition, humane environment, educational curriculum and program, and time spent for education. (2) Younger mothers considered the program of the kindergarten of more importance whereas older mothers considered the commuting method, size of kindergarten, and personality and competence of the principal and teachers of more importance. (3) College educated mothers considered curriculum and field trips to be important factors. (4) Employed mothers considered the importance of all day programs and hours of operation.

• Journal of the Korea Safety Management & Science
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• v.19 no.4
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• pp.253-260
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• 2017

Due to dramatic changes in the trend of corporate management in economics, labor and government, companies are being asked to adapt creative and innovative organizational culture in order to keep sustainability. Under the circumstances, flexible working hour becomes one of very effective method for organization culture improvement. Recently, M company has introduced the new policy of working hours that employees can choose a couple of different time options depending on their personal situations. And it turns out to be very effective to work & life balance, increasing organizational vitality, improving efficiency of business and productivity, recruitment of core human resources, and prevention of deviation; both team and personal performance levels has significantly improved. Therefore, it is highly recommended to adapt flexible working policies for companies seeking for a long term, sustainable corporate vision.

• Journal of the Korean Institute of Educational Facilities
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• v.23 no.5
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• pp.11-18
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• 2016

This study aims at proposing the efficient settlement of middle school district and the appropriate allotment of middle school student. It focuses on the middle school district in Sejong city where has recently been developed. Firstly this study analyzes the long-term plans of school establishment, the current state of the student accommodation and the number of increasing students according to the continuing developments. To set up the efficient school district, it investigates the number of students per school district, school location and the commuting condition to each school. Throughout a question investigation to school parents, it analyzes the school choice factors - distant to school, school environment, school facilities, teacher's passion, the school curriculum, and so on. Furthermore it carries out focus group interview(FGI) targeting parents and teachers. It proposes a short-distance allotment method as an appropriate disposition of middle school student in Sejong city, which conducts a process of the first-application and the later-draw with a community as a unit.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.5
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• pp.2430-2436
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• 2013

This study suggests a method of detecting the still object, which becomes a cause of danger within the crossroad. The Inverse Perspective Transform was performed in order to make the object size consistent by being inputted the real-time image from CCTV that is installed within the crossroad. It established the detection area in the image with the perspective transform and generated the adaptative background image with the use of the moving information on object. The detection of the stop object was detected the candidate region of the stop object by using the background-image differential method. To grasp the appearance of truth on the detected candidate region, a method is proposed that uses the gradient information on image and EHD(Edge Histogram Descriptor). To examine performance of the suggested algorithm, it experimented by storing the images in the commuting time and the daytime through DVR, which is installed on the cross street. As a result of experiment, it could efficiently detect the stop vehicle within the detection region inside the crossroad. The processing speed is shown in 13~18 frame per second according to the area of the detection region, thereby being judged to likely have no problem about the real-time processing.

• Journal of Korean Society for Geospatial Information Science
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• v.20 no.4
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• pp.89-95
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• 2012

Recent planning for bicycle use is relatively low compared to other studies. Although studies for the bicycle roads accessibility are actively underway, those considering topographical elements and characteristics of the user behaviors are very limited. Choosing paths of cyclists is typically influenced by slopes and intersections as well as optimal distance. This study presents a method to find optimal paths considering topographical elements in case of choosing paths for school commuting using bicycles. Conversion formulae suggested here are tested on a Songpa area using round-trip directions and compared with traditional optimal path computation.

• Journal of Korean Society of Rural Planning
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• v.26 no.4
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• pp.107-116
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• 2020

The purpose of this study is to analyze the characteristics of the 11 southeastern states in the United States by using regional characteristics variables and to classify the regions. First, 19 variables from four categories of population, society, industry-economy and urban service were selected and factor analysis were conducted, and the result showed five major factors of population, economic condition, job and commuting. Based on the following factor scores, a cluster analysis was conducted, and eight types of big city, medium-sized city, bed town, small town, urban hinterland, retirement town, and rural village were derived. These types of spatial distribution characteristics showed big cities were by different types of regions and they formed metropolitan areas. Each types of classified regions were located along the road network with hierarchy. The study focused on cases in the southeastern regions of the United States and can be used as a comparison with Korean cases. If the same research method is applied to Korea in the future, or if the time series of changes is tracked by analyzing different time points, it will greatly help identify the characteristics of urban and rural mixed areas.

• Land and Housing Review
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• v.11 no.1
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• pp.1-10
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• 2020

The purpose of this study is to identify the characteristics of residents for purchased public housing in Seoul, using empirical panel data. The scope of the study will be targeted at the Seoul, as of 2017. The research method includes literature review, statistical analysis, and spatial analysis using QGIS software program. The data used in the research is the Panel Survey of Public Housing in Seoul(2017). The main results of the research are briefly summarized as follows; Firstly, Living in a housing with an increased area compared to the previous housing. Secondly, they can live for a long time with low rent. The burden on housing costs is 71.8% in the case of the deposit. Thirdly, there is little concern about social stigma. Purchased public housing was found to be good in terms of stigmatization due to low-income clusters. Lastly, the accessibility in the city center was good condition. In particular, commuting time was 34.79 minutes on a one-way basis, saving about 4 minutes compared to other types of public housing.

• Journal of Korea Planning Association
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• v.54 no.3
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• pp.49-62
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• 2019

In order to balance with supply policy, public housing management and operation policies have been implemented in terms of housing welfare, but citizens have not yet achieved the results that the citizens are experiencing. The purpose of this study is to analysis the residential satisfaction of the including the housing performance through the characteristics of the public housing residents in Seoul. The data used in this study is based on the survey data of public housing panel survey in Seoul (2016). The study method used ordered logistic regression analysis based on the fact that dependent variables appeared as ordered responses. Major research results are as follows. Firstly, housing performance and residential satisfaction may not match. Even though the satisfaction of housing area, type, and management fee is high, satisfaction with residential environment is low if commuting distance, the number of small libraries, and hospitals are small. Secondly, it showed different characteristics of residential environment factors among types of public housing. Rather than focusing on supply, customized supply is needed considering characteristics of public housing types. Thirdly, the policy for public housing needs to be realized by a fair policy on the residential environment. It is necessary to contribute to better housing stability as a customized policy considering the local residential environment.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.31 no.5
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• pp.385-391
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• 2013

As a solution for environmental problems caused by increasing number of vehicles, it is encouraged to use a bicycle as an environment-friendly transportation method. To vitalize the bicycle usage, it is a necessary to construct bicycle roads that are safe and suitable for users. Based on the previous research results, we assume the main purposes of bicycle usages are mainly local leisure activity and school commuting. Thus, the proposed method finds the shortest link between the existing bicycle road network and bicycle usage facilities such as leisure activity places or schools over public road network. Then, we carry out the RTK DGPS survey for the candidate links, and analyze the slopes of them. When the slope of a found link is larger than a threshold, an alternative link is re-found for the safety and convenience of a bicycle user. The proposed method is applied to the real bicycle road network in Mokpo, Chunnam and the results are discussed.