• Title/Summary/Keyword: Safety transport

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Safety Levels Apportionment in Railway System

  • Rafrafi, Meriem;El Koursi, El Miloudi;Bourdeaud'Huy, Thomas
    • International Journal of Railway
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    • v.1 no.4
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    • pp.157-168
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    • 2008
  • The creation of a single European rail transport market it is important to increase confidence between the actors on the market and between member states who shall ensure that railway safety is generally maintained and, where reasonably practicable, continuously improved. For this purpose the European railway safety directive introduces a mechanism to adopt a Common Safety Targets (CST) expressed in risk acceptance criteria for individuals and for society. This paper focuses on the apportionment of safety targets for European railway system. We develop a generic approach based on the Functional Hazard Analysis (FHA), to analyse the safety of railway systems for a unified European network and to comply with the CSTs required by the European railway Safety Directive. We suggest to combine the FHA technique with the functional railway architecture to allocate the safety targets to the railway functions.

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Analyzing the Detail Item Characteristics of Safety Management Expenses Based on the Construction Technology Promotion Act (건설기술진흥법에 따른 안전관리비 세부항목의 특성 분석)

  • Lee, Jae-Hyun;Jeong, Jae-Wook
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.277-278
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    • 2023
  • In 2022, construction had a five fold higher accident and fatality rate compared to the overall industry. The Construction Technology Promotion Act requires parties in construction contracts to calculate safety costs following Ministry of Land, Infrastructure and Transport guidelines. Understanding safety expense components is vital for evaluating accident prevention costs and planning anti-accident strategies. A study surveyed safety professionals to analyze the importance and influence of safety management expense components, providing basic data for future research. Survey results highlighted the significance of safety management plans, structural safety assurance, and preventing collateral damage.

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Pedestrians and Drivers Behaviour Change by Installation of Crossing Safety Assistant System (횡단안전 지원시스템 설치에 따른 보행자, 운전자 통행행태 변화)

  • Jin, Min-Soo;Lee, Suk-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.15 no.3
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    • pp.85-93
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    • 2016
  • According to Traffic Accident Statistics, the fatalities of accident while crossing is over represented. So, more active safety countermeasure should be considered to reduce the frequency and degree of severity of pedestrian-crossing involved accidents. The study analyses the safety effects of the Crossing Safety Assistant System which is composed of Led-embedded crosswalk lightings, text displayer and audio waning device for the safety consciousness both pedestrian and vehicles at crosswalk area. Operating speed of vehicles is reduced with statistical significance, and the level of vigilance expressed by pedestrian head movement to check out the vehicle existence is improved.

Safety Assessment of Signalized Intersection Using SSAM : A Case of Actuated Signal Control (SSAM을 이용한 신호교차로 안전성 평가(감응식 교통제어 도입사례를 중심으로))

  • Yun, Il-Soo;Lee, Choul-Ki;Choi, Jin-Hyung;Ko, Se-Jin
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.10 no.6
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    • pp.1-14
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    • 2011
  • The surrogate safety assessment model which was developed based on the conflict theory by FHWA in the US is software to analyze traffic conflicts using the individual vehicle trajectory data from a microscopic traffic simulation model. This study aims at assessing the safety of different signal control strategies, including pre-time and actuated signal control, using the SSAM. To this end, this study effort has developed a microscopic traffic simulation model using VISSIM through a field study, and then produced the surrogate measures, including TTC, PET, DR, MaxS and DeltaS, and the numbers of conflicts, including rear-end, right angle and lane-changing conflicts. The assessment results indicated that the actuated signal control may produce more conflicts in terms of rear-end conflicts. The use of SSAM in the safety assessments for diverse traffic alternatives in a safe and fast way may contribute to the improvement of safety in the roadway transportation.

A Safety Analysis Based on Evaluation Indicators of Mixed Traffic Flow (혼합 교통류의 적정 평가지표 기반 안전성 분석)

  • Hanbin Lee;Shin Hyoung Park;Minji Kang
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.23 no.1
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    • pp.42-60
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    • 2024
  • This study analyzed the characteristics of mixed traffic flows with autonomous vehicles on highway weaving sections and assessed the safety of vehicle-following pairs based on surrogate safety indicators. The intelligent driver model (IDM) was utilized to emulate the driving behavior of autonomous vehicles, and the weaving sections were divided into lengths of 300 and 600 meters for analysis within a micro-traffic simulation (VISSIM). Although significant differences were found in the average speed, density, and headway between the two sections through t-test results, no significant differences were observed when comparing the number of conflicts per indicator and the vehicle-following pair. Four safety indicators were selected for the mixed traffic evaluation based on their ability to represent risk levels similar to those perceived by drivers. The safety analysis, based on the selected four indicators, determined that autonomous vehicles following other autonomous vehicles were the safest pairing. Future research should focus on integrating these indicators into a single comprehensive index for analysis.

The System and Activity of Port State Control in Japan

  • Ichikawa, Yoshiro
    • Proceedings of KOSOMES biannual meeting
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    • 2000.05a
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    • pp.86-100
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    • 2000
  • The author of this document is generally in charge of Port State Control affairs at the headquarters of Ministry of Transport, Japan. In this document, the necessity of Port State Control, the brief history of japanese Port State Control and the present system of Port State Control in Japan are introduced. Also, the newest output of Japanese Port State Control which is an annual statistic of 1999 is explained, subsequently the policy and strategy on Port State Control in Japan is introduced.

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Development and Application of Customized Shielded Cask Transport System

  • Lee, Jong Kwang;Jeon, Min Ku;Jung, Yunmock;Park, Wooshin;Hong, Sun Seok;Choi, Eun-Young
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2018.11a
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    • pp.157-158
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    • 2018
  • In this work, we developed a customized shielded cask transport system which is equipped with a railguided travelling unit and a position adjustment unit for the cask without any crane service. The designed solid model was verified to have sufficient safety margin by using structural analysis. The developed system was introduced to a hot-cell and successfully tested and verified to have required target performance.

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A study on advanced EMU's maintenance program on test operation in Dabul line (차세대 전동차 대불선 시운전 시 유지보수방안 연구)

  • Kim, Young-Kyu;Park, Se-Young;Song, Jeong-Hun;An, Cheon-Heon;Lee, Han-Min
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.2215-2222
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    • 2010
  • Advanced EMU have been enhanced in terms of safe transport and maintainability. It is a new urban railway technology that enables an operation institution to cut repair and maintenance costs and customers to use convenient service at lower costs based on IT technology. If a development vehicle of Advanced EMU is completed, it will be used to test the entire advanced EMU system through sufficient performance check and reliability check prior to operation in commercial line. It will also verify efficiency, safety, punctuality and energy efficiency of transport. Accordingly, it is necessary to figure how to repair and maintain vehicles to enhance safety of Advanced EMU system in cooperation with operation during the period of comprehensive evaluation on the operation of a development vehicle in a test line. In this paper, we investigated the maintenance program of Advanced EMU on test operation in Dabul line. The test condition and operation environment of Advanced EMU in Daebul line was analyzed.

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Studies on the Cisplatin Nephrotoxicity (Cisplatin의 신장독성에 관한 연구)

  • 성하정;이창업;이문한;이영재;류판동;김곤섭
    • Journal of Food Hygiene and Safety
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    • v.8 no.4
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    • pp.189-193
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    • 1993
  • Cisplatin is useful for various cancers including advanced testicular and ovarian cancers. However, clinical use of cisplatin has been limited due to its dose-related neplrotoxicity. Transport studies across the membrane vesicles were performed to study the cisplatin nephrotoxicity. In these experiments, after cisplatin was administered to adult male New Zealand White rabbits, basolateral membrane (BLM) vesicles were prepared from the renal cortex. Para-aminohippurate (PAH) uptakes through BLM vesicles were measured to examine the interactioln of cisplatin on the transports of the substrates. As results of the uptake experiments using the vesicle systems, cisplatin had little effects on PAH transport through BLM vesicle. In conclusion, cisplatin did not cause the damage of basolateral membranes.

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A Case Study on RFID-PPS(Radio Frequency IDentification-Pallet Pool System) (RFID-PPS (Radio Frequency IDentification-Pallet Pool System) 사례연구)

  • 안종윤;양광모;진향찬;강경식
    • Proceedings of the Safety Management and Science Conference
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    • 2004.05a
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    • pp.303-307
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    • 2004
  • Is not used by consistency transport at transport of freight nothing but is using Pallet only by pedestal when work palletized unit load or materials handling when keep simplicity receptacle which fill raw material or product in factory in our country. Therefore, pallet that is most important function of Pallet is not empled circulation to end consumer from manufacturing plant which is circulation process whole path being done and factory. It is real condition stopping only in extremely determinate part process use of warehouse back. Additionally, it is possible to figure out the flow of all the materials loaded on the RFID pallet; product, material, raw material immediately, so that epoch-making management is possible and it contributes to the reduction of logistics cost because there are little loss or outflow of pallet. The materials flow is getting speedy and inventory is decreasing in the logistics process, and also bad inventory and loss problems are prevented. As a result, not only logistics cost of company but also national logistics cost is decreased. Thus it contributes to the strength of national competitiveness.

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