• Journal of Korea Port Economic Association
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• 제36권3호
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• pp.21-38
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• 2020

Currently, in-port emissions are a serious problem in port cities. However, emissions, especially non-greenhouse gases, from the operation of cargo handling equipment (CHE) have received significant attention from scientific circles. This study estimates the amount of emissions from on-land port diesel-powered CHE in the Port of Incheon. With real-time activity data provided by handling equipment operating companies, this research applies an activity-based approach to capture an up-to-date and reliable diesel-powered CHE emissions inventory during 2017. As a result, 105.6 tons of carbon monoxide (CO), 243.2 tons of nitrogen oxide (NOx), 0.005 tons of sulfur oxide (Sox), 22.8 tons of particulate matter (PM), 26.0 tons of volatile organic compounds (VOCs), and 0.2 tons of ammonia (NH3) were released from the landside CHE operation. CO and NOx emissions are the two primary air pollutants from the CHE operation in the Port of Incheon, contributing 87.71% of the total amount of emissions. Cranes, forklifts, tractors, and loaders are the four major sources of pollution in the Port of Incheon, contributing 84.79% of the total in-port CHE emissions. Backward diesel-powered machines equipped in these CHE are identified as a key cause of pollution. Therefore, this estimation emphasizes the significant contribution of diesel CHE to port air pollution and suggests the following green policies should be applied: (1) replacement of old diesel powered CHE by new liquefied natural gas and electric equipment; (2) the use of NOx reduction after-treatment technologies, such as selective catalytic reduction in local ports. In addition, a systematic official national emission inventory preparation method and consecutive annual in-port CHE emission inventories are recommended to compare and evaluate the effectiveness of green policies conducted in the future.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 한국항해항만학회 2010년도 춘계학술대회
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• pp.167-168
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• 2010

Advanced countries are adopted the Eco-Green port using high energy efficiency Crane and Automated unloading system. This paper includes the case study for energy saving ECO-RTG and other automated unloading system such as, German CTA, Japan OHI, and so on.

• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 1998년도 가을 학술발표논문집 Vol.25 No.2 (1)
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• pp.490-492
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• 1998

환경문제를 전혀 야기하지 않으며 하역능률이 뛰어난 차세대 하역설비인 연속식 Unloarder의 하역능률을 관리하고 운전 및 정비의 효율적인 운영을 보장하는 초저가형 Expert System인 SCIS-30과 그 구현에 대하여 소개하고자 한다

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 한국항해항만학회 2010년도 춘계학술대회
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• pp.211-212
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• 2010

하역장치가 장착된 모바일하버 선박은 새로운 해상운송시스템 개념으로, 임시정박지에서 대형 컨테이너 선박에 계류하여 해상상태 3 이하 조건에서 선박간 해상계류 상태에서 신속하면서 효율적인 컨테이너 하역작업을 수행하는 것이다. 모바일하버와 관련한 주요 연구로는 고속하역시스템, 부유체 구조 설계, 안벽하역시스템 해석 및 작업크레인 설계 둥의 원천 기술 개발을 중심으로 수행되었다. 본 연구는 모바일하버 선박의 하역작업 중 동척 안전성 확보를 위한 계류안정화시스템을 개발하고자 하는 것으로, 국내외 계류장치에 대한 현황 분석을 기초로 현재 선박에 탑재되어 있는 의장장치인 윈치시스템에 계류안정화 기능을 추가시킨 포지셔녕 윈치를 개발하여 모선과의 상대운동을 최소화하는 방안에 대한 개념 설계를 제안한다.

• Proceedings of the KOR-KST Conference
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• 대한교통학회 1998년도 Proceedings 제34회 추계 학술발표회
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• pp.520-528
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• 1998

대도시 도심상업지역에서는 하역을 위한 적절한 대책이 수립되지 않아 노상에서 빈번히 하역이 이루어져 도로교통혼잡과 보행환경악화 등의 여러 가지 문제가 초래되고 있다. 이와 같은 도시내 물류에 관한 문제를 해결하기 위해서는 근본적으로 화물수송에 있어 공동집배송 등의 물류합리화를 통해서 대처하여야 하지만 아직 도시내 하역의 실태조차도 정확히 파악되고 있지 않은 실정에 있다. 따라서 본 연구에서는 이와 같은 문제에 대해서 도심상업지역 중 조사구간을 선정하여 실측조사와 5설문 조사를 실시하여 하역의 실태와 특성을 분석하였다. 본 연구의 결과를 요약하면 다음과 같다. 부산시 도심상업지역의 점포에서 반·출입되는 화물의 수송형태는 공동수송보다 개별적으로 수송되는 경우가 더 많았다. 그리고, 도심상업지역의 시각별 순간 노상주차 현황을 보면 승용차의 비율이 높으나 화물의 반출·입에는 소형트럭이 가장 많이 이용되고 있으며 목적시설과 가급적 가까운 곳에 주차하려는 경향을 보이고 있다.

• Journal of Intelligence and Information Systems
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• 제14권3호
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• pp.77-86
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• 2008

This study presents a method for estimating the productivity of the ship operation in container terminal. The productivity of the ship operation is influenced by the specifications of each piece of equipment and layouts of the terminal, and the operational strategies. The handling equipments considered in this study are QC(Quay Crane), RMGC (Rail mounted gantry crane), and Transporter (TR). The simulation experiments are conducted to estimate the QC productivity based on the change of the design factors.

• Journal of the Korea Safety Management & Science
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• 제4권3호
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• pp.79-93
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• 2002

Cross docking is a material handling and distribution concept in which products move directly from receiving dock to shipping dock, without being stored in a warehouse or distribution center. Depending on the facility and operating conditions or strategies employed, it is possible to generate various cross docking scenarios or models. The cross docking model, which is studied in this research, assumes there are a separate receiving dock and a separate shipping dock. It is also assumed that the products contained in a receiving truck and the products needed for a shipping truck are known in advance. Furthermore, the study is restricted to scenarios where there is only one receiving dock and only one shipping dock at the warehouse. The research objective is to find the best truck spotting sequence for both receiving and shipping trucks to minimize total operation time (i.e., the makespan) of the cross docking system.

• KSCE Journal of Civil and Environmental Engineering Research
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• 제34권3호
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• pp.873-883
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• 2014

This study proposed an estimation method of allowable wave height for loading and unloading of the ship considering ship motion that is affected by ship sizes, mooring conditions, wave periods and directions. The method was examined validity by comparison with wave field data at pier $8^{th}$ in Pohang new harbor. The wave field data obtained with wave height of 0.10~0.75m and wave period of 7~13s in ship sizes of 800~35,000ton when a downtimes have occurred. On the other hand, the results of allowable wave height for loading and unloading of the ship in this method have obtained with wave heights of 0.19~0.50m and wave periods of 8~12s for ship sizes of 5,000, 10,000 and 30,000ton. Thus this method well reproduced the field data respond to various a ship sizes and wave periods. And the results of this method tended to decrease in 16~62% when have considered long wave, and it is decreased in 0~46% when didn't consider long wave than design standards in case of the ship sizes of 5,000~30,000ton, wave period of 12s and wave angle of $75^{\circ}C$. The allowable wave heights for loading and unloading of the ship proposed by design standards are didn't respond to various the ship sizes and wave periods, and we have found that the design standards has overestimated on smaller than 10,000ton.

• Journal of Korean Society of Transportation
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• 제22권4호
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• pp.19-30
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• 2004

Due to the inefficient operation of the existing logistic facilities, the complicated distribution structure, and closed utilization of logistic information are causing high logistic costs. The general improvement in the distribution structure and the expansion of the logistic facilities are needed for solving these problems. However, existing unit-scale forecast is not considering the loading and unloading characteristics of the trucks and the improvement of operation efficiency from the mechanization and automation of the loading and unloading works. The queuing theory based on the status quo of the cargo trucks to the cargo terminals is considered in this study. The optimal scale estimation method(OSCM) which the loading and unloading characteristics of the cargo trucks were taken into consideration was suggested. Also, the relationship between the optimal scale of the cargo terminal and the mechanization, automation, and informationization of the present loading and unloading system was investigated. As a result, it showed that the regularity of the truck arrival and service times had less influence on the scale of the cargo terminal, but the improvement of the loading and unloading speeds and the service rate of the trucks did more influence on it.

• Journal of Korean Society of Transportation
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• 제26권2호
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• pp.57-67
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• 2008

Loading zone is necessary to central business district(CBD) due to freight trucks coming into inner city. Currently truck drivers in metropolitan area are forced to illegally park their freight trucks on the roads close to the business facilities because there is no or few loading zones available in the CBD. This situation would bring into traffic congestion and even might block local roads in the CBD. This study reviews the existing improvement plans in city logistics, and examines delivery characteristics related to freight trucks and drivers in Seomyeon, the central downtown of Busan. Also it conducts a location planning for on-street loading/unloading bay using a technical method for arranging loading space. This research estimated the number of parking and stop bays for truck's operation using queueing theory based on truck-service rate and arrival rate, and found locations with the minimum resistance function values for freight movement in arranging on-street loading/unloading bays.