• Journal of the Korean Recycled Construction Resources Institute
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• v.8 no.4
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• pp.444-449
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• 2020

In this study, On-Board Truck Scale was installed on the construction waste collection / transportation vehicles to monitor the weight of the waste at all stages from generation to final treatment. It was performed as a case study of a construction waste control technology that can efficiently manage the total generating and recycling amount using real-time weight/location information obtained by the On-Board Truck Scale device. As a result of the study, it was confirmed that the total amount of construction waste can be monitored in real time, and a plan for efficient logistics transportation can be derived through the analysis of operation patterns by managing the real-time transport volume, transport distance, and transport time of the construction waste collection / transportation vehicles. It was confirmed that overloading can be prevented in advance by controlling the loading also.

• Korea Trade Review
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• v.41 no.3
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• pp.109-133
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• 2016

Major nations undergone grand national strategy regarding Eurasia such as China's One Belt and One Road Strategy and Korea's Eurasia Initiative owing to Eurasia's regional importance. Korea's Eurasia Initiative aims to make one continental, creative continental, peaceful continental with intra-Eurasian nations as grand national strategy is based on creative economy, undertaken by President Park's Government for the future of Eurasia after the Northeast Asian logistics hub strategy. Eurasia Initiative includes logistics network project as an important one which consists of Eurasia Friendly Express, Rajin-Hassan logistics project, the Arctic Ocean route project and Rail transport network project. The success of Eurasia Initiative depends on North Korea. The purpose of this paper is to contribute to the improvement of prompt logistics network by networking main rail transport and other transports such as inland waterway transport and air transport by studying the current situation of Eurasia Express project, including rail transport network and the efficient methods of Eurasia logistics. The efficient methods of rail transport network under the Eurasia initiative are construction of multimodal logistics network connected with rail, international cooperation for logistics standardization in Eurasia, Eurasia nations' subscription of logistics-related conventions and projects performance based on these conventions, etc.

• Journal of Korean Society of Transportation
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• v.17 no.5
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• pp.43-55
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• 1999

The value of time in freight transportation describes the importance of goods during transport and shows the direction of efficient logistic management having inventory cost in transporting The value of time differs from class to class in freight transportation. It is due to the differences of shipper's willingness to Pay for time saving. In this research the value of time in intercity freight transportation of manufacturers in Korea was estimated as follows: first, the Perception factors which were the important criteria of shippers for choosing truck were sampled. second, the shippers were classified into three homogeneous classes. third, the value of time of each class was estimated by using multinominal logit model. The results of this research showed that the value of time in freight transportation was different from every class, that the shipper had to Pay 1,680 won for saving one hour Per each shipment, and that the inventory cost in transporting occupied 9.54% in the mean freight Price.

• Journal of Korean Society of Transportation
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• v.19 no.1
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• pp.17-28
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• 2001

The purpose of this study is to analyze logistics cost of transportation systems on EC(electronic commerce) between company and consumer. Transportation system in logistics is classified by three types on EC. The first type is the direct delivery from supply factory to consumers(type I). The second type is the delivery through distribution center in each area by owner logistics company (type II). The third type is the commission of delivery to the third party logistics company(type III). The logistics of EC has various service characteristics such as dealing with small quantity, various goods, and high frequency. This study assumes that all day's order is delivered on a next day. The logistics cost function is calculated according to the number of orders, delivery distance, transport quantify. and allocated freight trucks for daily order of the subject zone. The logistics cost changes according to the daily order characteristics. Therefore it is simulated to analyze the logistics cost change that considers the type of transportation's order characteristics. As a result of analysis, if the number of order is less than 10 and the quantify of each order is less than 10kg, type III has an advantage over the others And if the number of order is more than 10 and the quantity of each order is more than 10kg, type I has an advantage in the same zone and type II has an advantage in the other zones. This study is limited on the actual application because this study doesn't consider logistics infra of supply company and transport service time. If further study that considers these factors is implemented, it can estimate more accurate logistics cost on EC and propose an efficient freight transport alternatives to the company. This study attributes to estimate the logistics cost change over the frequency of daily order, the quantify of supply goods, and the transport distance on EC.

• Journal of Korean Society of Transportation
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• v.19 no.4
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• pp.7-18
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• 2001

This study represents a first attempt in Korea to develop the simultaneous freight supply-demand model which considers the relationship between freight supply and demand. As the existing study was limited in one area, or the supply and the demand was separated and assumed not to affect each other, this study take it into consideration the fact that the demand affects supply and simultaneously vice versa. This approach allows us to diagnose a policy carried on and helps us to make a resonable alternative for the effectiveness of freight transportation system. To find a relationship between them, we use a method of econometrics. a structural equation theory and two stage least-squares(2SLS) estimation technique, to get rid of bias which involves two successive applications of OLS. Based on the domestic freight data, this study consider as explanatory variables a number of population(P), industry(IN), the amount of production of the mining and manufacturing industries(MMI), the rate of the effectiveness of freight capacity(LE) and the distance of an empty carriage operation(VC). This study describes well the simultaneous process of freight supply-demand system in that the increase of VC from the decrease of VC raises the cargo capacity and cargo capacity also augments VC. By the way. it is analyzed that the increment of VC due to the increase of the cargo capacity is larger than the reduction of VC owing to the increase of the quantify of goods. Therefore an alternative policy is needed in a short and long run point of view. That is to say, to promote the effectiveness of the freight transportation system, a short term supply control and a long run logistic infrastructure are urgent based on the restoration of market economy by successive deregulation. So we are able to conclude that gradual deregulation is more desirable to build effective freight market.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.46 no.5
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• pp.436-444
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• 2018

The purpose of this research is to assess the efficiency of the airline's route. The revenue source of low cost airline carriers is not various unlike regular airline carriers, because they are operating only domestic and international flights for a country of close proximity. In particular, domestic low-cost airlines in Korea can't provide cargo transport services but rely on passengers and additional services to generate profits. Therefore, it is absolutely important to maintain a low cost and effective passenger transport line. This study will suggest the way to improve efficiency of route operated by low-cost airlines. Analysis method is DEA. The input parameters and output results were selected by existing research. Based on the results of this study, it will be able to assist establishing routes and selling strategies of the low-cost airlines.

• Journal of Navigation and Port Research
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• v.34 no.8
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• pp.649-657
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• 2010

In order to achieve a sustainable competitive advantage in the expanding maritime transportation market, most shipping companies are making every effort to reduce transportation costs. Likewise, the car shipping companies, which carry more than 80% of total car import and export logistics volume, also do their utmost for transportation cost saving. Until now many researches have been made for efficient maritime transportation, but studies for car shipping companies have rarely been made. For this reason, this study has tried to develop a maritime transportation planning support system which can help to save logistics costs and increase a competitive power of car shipping companies. To this end, instead of manual effort to solve the routing problem of car carrier vessels, this study has proposed a genetic algorithm. The performance of the genetic algorithm will be evaluated by comparing with the optimal solution of integer programming model.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.157-159
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• 2015

Most cargo truck drivers of small and medium-sized firms often process their works using a paper document containing the transport-related information. However, these paper documents that are used to plan route or check the list for cargo loading have the potential to be lost or damaged. Also, it is not easy to manage cargo using certain devices not the paper document in case of small and medium-sized firms because the budget is limited. In this paper, we implement the cargo transportation system for desktop and android-based application in order to solve these problems. A manager for cargo transportation is provided a simple interface to manage the transport-related information through the desktop application. A cargo truck driver is provided functions such as plan route and make a call to manage the transport-related information through the android-based application. This system is implemented to improve the efficiency of cargo transportation.

• 한국IT서비스학회:학술대회논문집
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• 2003.05a
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• pp.395-398
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• 2003

인터넷이 활성화 됨에 따라 공간이나 시간적 제약이 감소하였다. 인식 부족과 사용자 환경에 의해 미진하였던 철도 물류 정보 시스템도 웹을 기반으로 서비스 체제를 변경함으로 인해 효율적이고 편리한 서비스를 제공할 수 있었다. 제안한 시스템은 기존 XML로 처리되는 데이터 뿐만 아니라 철도를 통해 운송되는 화물(컨테이너 등)에 대한 추적 정보를 제공하거나 화물 운송에 대한 실적 및 정산 정보를 알 수 있다. 또한 철도를 통해 운송된 화물에 대한 통계 자료나 화차에 대한 운송 현황 자료 등을 추출하여 물동량 파악이나 철송 업무에 활용할 수 있다.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2006.05a
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• pp.95-108
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• 2006

Because of rapid expansion of third party logistics, fierce competition in the transportation industry, and the diversification and globalization of transportation channels, an effective transportation planning by means of multimodal transport is badly needed. Accordingly, this study aims to suggest an optimal transport algorithm for the multimodal transport in the international logistics. Cargoes and stopovers can be changed numerously according to the change of transportation modes, thus being a NP-hard problem. As a solution for this problem, first of all, we have applied a pruning algorithm to simplify it, suggesting a heuristic algorithm for constrained shortest path problem to find out a feasible area with an effective time range and effective cost range, which has been applied to the Label Setting Algorithm, consequently leading to multiple Pareto optimal solutions. Also, in order to test the efficiency of the algorithm for constrained shortest path problem, this paper has applied it to the actual transportation path from Busan port of Korea to Rotterdam port of Netherlands.