• Journal of the Korean Association of Geographic Information Studies
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• v.22 no.1
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• pp.28-38
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• 2019

The smart card data stores the transit usage records of individual passengers. By using this, it is possible to analyze the traffic demand by station and time. However, since the purpose of the trip is not recorded in the smart card data, the demand for each purpose such as commuting, school, and leisure is estimated based on the survey data. Since survey data includes only some samples, it is difficult to predict public transport demand for each purpose close to the complete enumeration survey. In this study, we estimates the purposes of trip for individual passengers using the smart card data corresponding to the complete enumeration survey of public transportation. We estimated trip purposes such as commute, school(university) considering frequency of O-D, duration, and departure time of a passenger. Based on this, the passengers are classified as workers and university students. In order to verify our methodology, we compared the estimation results of our study with the patterns of the survey data.

• Journal of the Korean Geographical Society
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• v.34 no.1
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• pp.47-61
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• 1999

The purpose of this study is to grasp position of Sachon airport-local airport-especially the characteristics of it's air passengers, the distribution of passengers hinterland on their purposes of the travel and on the day of the week, and the spatial structure of hinterland The results is as follows The distribution of the hinterland on the purposes of a passenger's travel shows the hunterland of friend and acquauntance visit is wider than that of business, And the middle level of its size is sightseeing The hinterland of commuting includes only Chinju, so the range of passengers' social activities is wider than that of passenger' economic activities In the distribution of the hunterland on the day of the week, the distnbution of the weekday is wider than that of the holidays, but the passenger travel to Chinju is concentrated on the holidays. As rnentioned adove, the hinterland centenng around Sachon airport is Chinju sity field. Tongyoung. Sachon and Koje city field, Kwangyang city and Namhae, Sanchong, Kosung, Hadong, Uiryoung county field. It is a little different result from the area of reverse commuting of the elementray, middle and high school Leachers living in Chinju That's because air passenger travel mainly occurs in industrial and sighrseeing cities

• Human Ecology Research
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• v.58 no.2
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• pp.255-266
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• 2020

This study observed and investigated the commute time of dual-earner couples from a family developmental perspective. It tested whether the household responsibility hypothesis was effective in explaining the gender gap in the commute time for these couples. I extracted 2,103 time diaries written by 1,266 matched couples from the 2014 Korean Time Use Survey data for this study. The sample was categorized by the age of the eldest child into four age groups of 0-6, 7-12, 13-18, and 19-29. Analytic results from ANOVA, Scheffé test, and OLS regression are as follows. First, husbands traveled longer hours to work than wives in all age groups, while the commute time of couples tended to increase along with the child' age. However, couples in the child group aged 7 to 12 had the shortest commute time. Second, domestic labor time of wives were negatively associated with the commute time, which appeared to support the household responsibility hypothesis. Third, in the child group aged 7 to 12, wives spent more time for work commute as their income increased; however, wives with traditional gender role attitudes had a shorter commute time in the child group aged 0 to 6. Forth, neither the wives' nor husbands' work characteristics were related to the wives' commute time; however, both wives' and husbands' work characteristics were related to the husbands' commute time. The findings suggest the possibility of spatial entrapment by working wives throughout the family life cycle due to household responsibilities, which provides implications for policy intervention in consideration of the gender gap in commute time for dual-earner couples.

• Journal of the Korean Geographical Society
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• v.42 no.3 s.120
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• pp.421-433
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• 2007

The Metropolitan Areas have experienced the phenomenon that some of their peripheral parts emerged as a core business area because of the relocation of residential and economic activities from the central area. An important phenomenon in the spatial transformation of metropolitan area is the weakening of centrality in the center and the increasing strength of centrality in the periphery. This paper examined the changing patterns of spatial interaction in the Seoul Metropolitan area through an analysis on outflow trips. Outflow trip by Seoul decreased in nearby regions and increased in remote regions, however as times goes by, the spatial patterns of the largest outflow trip destination were diversified and the rate of outflow trip to Seoul has decreased in the periphery regions. This research reveals that the most remarkable changes of spatial interactions occurred nearby regions of Seoul and also the changes of outflow trip by Seoul was also distinct. In relation to this, the results arising from the similarity analysis by the variance of trip clearly show the changing spatial patterns of interaction in Yongin, Seoul, Suwon and Hwaseong.

• Journal of Korean Society of Rural Planning
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• v.25 no.3
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• pp.77-87
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• 2019

This study is to identify the factors affecting commuting time and modes in urban and rural areas using household traffic survey data. The findings indicated that commuting time using passenger car in rural areas was 1.6 times longer than those in urban areas. When citizen use public transportation, however, there was not much difference in commuting time in urban and rural areas. Among the various factors affecting commuting time in rural areas (13 factors have statistical significance), the most influential factors were that public transportation, managers and office workers, functional and device managers, and passenger car. In urban areas, the highly influential factors were public transportation and walking among the 16 affecting factors which have statistical significance. The commuting time in rural areas increased according to the occupation types, but the commuting time of full-time workers decreased. This phenomenom means that occupation groups with the full-time system prefer residential areas in the densely populated town.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.355_356
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• 2009

대용량 고객의 전용선로는 건설을 고객이 하고, 유지보수 책임 또한 고객에게 있어, 잦은 전용선로 고장 및 변전소 정전시 대규모 손실 발생하는바, 대용량 기업고객과 한전간의 전력공급서비스체계를 분석하고, 문제점 파악 및 해외사례 조사를 통해 개선방안을 도출하고, 개선방안과 관련한 구체적인 Action Plan을 제시하여 최적의 전력인프라 구축과 효율적인 전기공급을 통해 친기업 환경을 조성하고 고객설비 신뢰도 향상을 통한 정전 및 고장시간 감소로 사회적인 손실을 최소화하여 국가경쟁력 제고에 기여코자 한다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2012.04a
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• pp.428-431
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• 2012

본 연구에서는 터널 화재 시 보다나은 대피 안전성확보를 위해 2차적 사고예방에 목적을 둔 정보표지판(Variable Message Sign)을 제연막으로 활용함으로써 터널 대피자의 안전성을 확보하고 대피취약자로 하여금 충분한 대피시간의 확보를 위한 최적의 조건을 제시하고자 하였다. 정보표지판의 다양한 설치 조건에 따라 화재연기가 전파되어지는 거리를 화재 시뮬레이션인 FLUENT와 피난 시뮬레이션인 SIMULEX를 이용하여 통근자와 고령자의 안전거리를 비교하고 대피 안전성을 검토하였다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1997.10a
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• pp.295-301
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• 1997

본 연구의 목적은 수도권 전동차량의 주행성능을 평가하는 방법으로 진동성능을 비교검토하기 위하여 실차측정하고 분석한 것이다. 전동차량의 제작년도별로 측정대상차량을 샘플링하여 다양한 조건에서 진동을 측정하고 실측데이타를 시간영역의 통계적 방법으로 분석한 결과 제작년도에 따른 영향도 약간 나타났으며 전동차량의 2차 현가장치의 종류에 따른 영향을 발견할 수 있었다. 또한 측정선로구간의 특성에 따른 영향도 비교적 잘 나타나고 있음을 알 수 있었다.

• Journal of Family Resource Management and Policy Review
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• v.24 no.3
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• pp.19-33
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• 2020

The purpose of this study was to investigate whether paid work time desynchronization affected housework time desynchronization. Time slot data from the Korean Time Use Survey data from 2014 was analyzed. This study included 1,475 married couples aged 20 to 59. They were dual-earner couples, heterosexual couples, and both partners worked during the day, either durong the week or on the weekend. The data was analyzed by the following four groups: weekday-husband, weekday-wife, and weekend-husband, weekend-wife. The results demonstrated that as the desynchronization of paid work increased, the desynchronization of time spent on housework in the weekday-husband and weekend-husband groups also increased. Second, the amount of leisure time did not affect the desynchronization of time spent on housework. Lastly, the amount of time that one person spent on housework increased the housework time desynchronization level. In addition, if the family had children who attended primary, middle, or high school-mothers in the weekday-wife group completed more housework. These results demonstrated that paid work time desynchronization might be a way to decrease the amount of time that dual-earner wives' spent housework.

• Journal of Korean Society of Transportation
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• v.35 no.6
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• pp.511-524
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• 2017

This study aims to evaluate the availability of ABM (Active-Based Model), FEATHERS, as a policy evaluation tool. To achieve the goal, scenario analysis on flexible working policy was conducted to measure its impact on activity-travel behavior. As a consequence, there seems no significant change in worker's daily life, other than mitigating traffic congestion due to decreasing commuting travel in the rush hour. The result of VKT (vehicle kilometers traveled) shows an opposite pattern according to given household/individual constraints. The scenario analysis on telecommuting indicates a decreasing trend in both travel frequency and distance because of the diminished number of commuting trips. As the activity space of telecommuters is shifted to a residential area, there are more short-distance trips by using non-motorized transport, which leads to decrease in VKT (using a private vehicle). Thus, the sensitivity of VKT by population groups varies due to transport mode shift (between personal and another mode) and growing non-work trips (using a private mode). This study found few things. First, it is necessary to evaluate the details of policy impact by population groups since it can be varied depending on household/individual characteristics. Second, the case study shows a promising performance of ABM as policy measurement that provides reality in policy evaluation. Third, ABM allows us to do more accurate analysis (i.e. time-series analysis by population groups) of policy assessment than those of FSM (Four-Step Model). Lastly, a further effort in data collection, literature review, and expert survey should be made to enhance the accuracy and confidence of future research.