• Journal of Digital Convergence
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• v.18 no.4
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• pp.101-112
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• 2020

This study aims to discuss the current status of the ride-sharing platform industry, which embodies the core values of the 4th Industrial Revolution, sharing and connectivity, as well as economic, industrial, and legal issues. To understand the position of competing groups, the research conducted extensive literature reviews on domestic and international cases of technical and legal issues of the sharing economy. The result indicates that the ride sharing industry showed the economy of synthesis in which production, supply, distribution, and consumption are on one platform. It made possible to share values to users and synthesize them with new services through easy-access mobile application technology. To resolve the conflicts between the taxi industry and the ride sharing industry, this study suggests the following: Ride-sharing companies should make contributions to provide legitimate services. The taxi industry needs to understand the value of the new industry and consumers who chose the shared platform service. The significance of the current study is that it proposed a comprehensive analysis and policy direction toward the issue of balance between public and private interests and legal stability.

• Transportation Technology and Policy
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• v.11 no.5
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• pp.62-66
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• 2014

• Journal of Digital Convergence
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• v.19 no.11
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• pp.301-313
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• 2021

The automotive industry is facing a paradigm shift, changing from owning to sharing and from manufacturing to service. However, it is hard to conclude that the economic value of smart mobility service is always positive to users. Cost related to owing or share a vehicle is very hard to estimate from the perspective of potential users as well as the benefit of the service. Focusing on the cost side of the story, this study develops a cost estimating model based on three main factors: electrification, advanced driving assistant systems (ADAS) function, and participation of ride-sharing service. As a result of the model analysis, low cost was estimated as a result when receiving cost benefits such as electrification and ride-sharing participation. Various factors were analyzed through sensitivity analysis also. These results can provide useful insights into the cost prediction and strategies for potential users and manufacturers on smart mobility service market.

• ETRI Journal
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• v.44 no.2
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• pp.220-231
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• 2022

Building smart transportation services in urban cities has become a worldwide problem owing to the rapidly increasing global population and the development of Internet-of-Things applications. Traffic congestion and environmental concerns can be alleviated by sharing mobility, which reduces the number of vehicles on the road network. The taxi-parcel sharing problem has been considered as an efficient planning model for people and goods flows. In this paper, we enhance the functionality of a current people-parcel taxi sharing model. The adapted model analyzes the historical request data and predicts the current service demands. We then propose two novel online routing algorithms that construct optimal routes in real-time. The objectives are to maximize (as far as possible) both the parcel delivery requests and ride requests while minimizing the idle time and travel distance of the taxis. The proposed online routing algorithms are evaluated on instances adapted from real Cabspotting datasets. After implementing our routing algorithms, the total idle travel distance per day was 9.64% to 12.76% lower than that of the existing taxi-parcel sharing method. Our online routing algorithms can be incorporated into an efficient smart shared taxi system.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.8 no.4
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• pp.299-303
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• 2014

Demand of moving auxiliary equipment has increased recently to an increase in the elderly population. pedestrian demand is either moving auxiliary equipment are also increasing. regional migration, such as pedestrian and the elderly and patients is a device to support the sharing received walking the weight of inconvenient people. In this paper, by mounting the electric function to the current manual walking, to prepare the electric walking to support the user's walking. the design applies a lightweight folding structure so that it can be moved to a ride at long distances, were fabricated.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.11a
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• pp.330-332
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• 2020

최근 4차 산업혁명이 가속화되면서 IT 기반 산업들이 제품 중심 사업에서 서비스 위주의 사업으로 변화하는 양상을 보인다. 그에 뒤 받침 하듯이 세계 스타트업 기업 가치를 측정해 보았을 때 1위부터 4위까지 모두 IT 기반의 사업이라는 것을 확인할 수 있다. 그중 750억 달라 가치를 가진 Uber, 560억 가치를 가진 디디추싱은 모두 차량 공유 시스템을 서비스를 기업으로, 세계 각국의 사람들의 현재 차량 매칭 서비스에 관심이 집중 되어있다. 이러한 차량 매칭 서비스는 사용자들 실시간 매칭을 해주기 때문에 많은 사람들이 서버에 접속하여 인증을 요청하게 된다. 또한 기업은 많은 사람들의 실시간 인증을 처리해야하기 때문에 다수의 요청을 처리하는 것은 시스템 사양을 결정하게 되는 중요한 요소가 된다. 이러한 서버 기반 인증 방식은 메모리에 부하가 걸리는 문제가 발생한다. 본 논문에서는 다수의 사람들이 들어오는 차량 매칭 서비스에서 토큰 인증 기반 방식인 JWT를 활용하여 기존의 서버에 사용자의 정보를 저장하는 세션 인증 방식보다 좀 더 효율적인 인증 방식을 제안하고자 한다.

• International Journal of Highway Engineering
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• v.14 no.3
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• pp.163-171
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• 2012

Demand Responsive Transit (DRT) services are becoming necessary as part of not only alternative transportation means for elderly and mobility impaired passengers, but also sustainable and flexible transportation options in urban area due to the development of communication technologies and Location Based Services (LBS). It is difficult to investigate the system performance regarding vehicle operational schemes and vehicle routing algorithms due to the lack of commercial software to support door-to-door vehicle simulation for larger area. This study proposes a simulation framework to evaluate innovative and flexible transit systems focusing on various vehicle routing algorithms, which describes data-type requirements for simulating door-to-door service on demand. A simulation framework is applied to compare two vehicle dispatch algorithms, Nearest Vehicle Dispatch (NVD) and Insertion Heuristic (IH) for real-time shared-taxi service in Seoul. System productivity and efficiency of the shared-taxi service are investigated, comparing to the conventional taxi system.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.6
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• pp.169-181
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• 2017

As vehicle supply rate increases, traffic jam-related problems emerge and sharing transportation including carpool, centered on the advanced countries, becomes a major interest. This study aims to analyze benefit generated by carpool during the rush hours of medium and long distance travel, focused on the workers of public Agencies relocated to innovation cities. In order to compute benefit, carpool demand of relocated public Agencies was estimated and travel speed was estimated according to reduced traffic volume through carpool adoption using a traffic flow model. The benefit were computed dividing them into direct benefit and indirect benefit. As a result, 23billion KRW and 56.5billion KRW were annually revealed to be generated in terms of direct benefit and indirect benefit. The study result is expected to be used as part of basic research to adopt carpool for future traffic demand management.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.18 no.3
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• pp.14-33
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• 2019

MaaS, which provides all-in-one service for comfort mobility for customers, has been popularly researched and developed mainly in Europe. Even in Korea, the research on MaaS is also carried out which is fit to the mobility environment and needs of Korea. Korea Land & Housing Corporation(LH) also carries out research on MaaS called 'Integrated Mobility' for the residents living in LH public apartments. This study categorised the around 800 public apartments into 12 groups based on 3 key characteristics, then analysed the preference on shared-transport services by the residents of representing apartments for the each group using C&RT method. The results show that the preference on shared-transport services such as car-sharing and ride-sharing (carpool) were higher in the apartments which are located in medium or small cities or lived by the more handicapped resident groups in mobility such as the elderly. The study suggests the method to analysis the relationship between residents' preference on shared transport services and bounded ertain areas such as apartments or districts and then to introduce shared transport service fit to target areas.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.129-139
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• 2020

This study was conducted to analyze the subjective perception types of college students majoring in cooking by applying flip-learning teaching and learning methods to the subject of cooking practice to improve the educational efficiency of cooking-related classes. Also, in order to study subjective perception of small students, we tried to grasp the common structure in subjective attitude and perception using Q methodology, and the analysis resulted in four types. Type 1 (N=5): Problem solving ability effect, Type 2 (N=6): Self-directed learning effect, Type 3 (N=3): Mutual cooperation practice effect, Type 4 (N=6) ): Theory learning effect was analyzed for each unique feature type. Flip-learning is applied to cooking practice classes, which is a learner-centered education that leaves the traditional teaching method. Interest was found to have a very positive effect on learners' opinion sharing and learning outcomes. However, it was revealed that all students need to find additional solutions to problems such as the operation plan for flipped learning and the free ride evaluation method in group learning.