• Title, Summary, Keyword: Passenger cabin

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Study on PM10 levels by the concentration of outdoor aerosols and the number of passengers in railway cabin (외기 미세먼지와 탑승객수에 따른 객실 PM10 농도변화 연구)

  • Park, Eun-Young;Park, Duck-Shin;Kwon, Soon-Bark;Cho, Young-Min;Kim, Se-Young;Jung, Mi-Young
    • Proceedings of the KSR Conference
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    • pp.1816-1820
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    • 2008
  • Indoor air quality in public transportation such as railway, subway and bus is hard to control because of spatial restrict and variation of passenger's number. On January 2007, The Ministry of Environment announced "the guideline of indoor air quality in public transportation" for the concentration managements of particulate matter and carbon dioxide. In this study, we measured the PM10 concentration inside the Mugunghwa-ho passenger cabin and outdoor air and counted passengers. By the statistical analysis using SigmaPlot 2001 and SPSS 13.0, we found that indoor PM10 concentration is significantly affected by outdoor air. It is suggested that the air quality of inflow to the passenger cabin for air exchange must be controlled to support the indoor environment comfortably.

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Air Quality and PM10 Source Analysis on the Railway Vehicles (철도차량에서의 공기질 현황 및 PM10 오염원 분석)

  • Park, Duck-Shin;Kim, Dong-Sool;Cho, Young-Min;Kwon, Soon-Bark;Park, Eun-Young
    • Journal of Korean Society for Atmospheric Environment
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    • v.23 no.3
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    • pp.311-321
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    • 2007
  • Nowadays, concerns have much more growing regarding indoor air quality (IAQ) on the public transportation including railway vehicles. Last year Korea Ministry of Environment (ME) set new guideline for public transportation. In this study several factors were analyzed which may affect comfortableness of railway passenger cabin, and we monitored IAQ parameters (PM10, CO, $CO_2$, VOCs, temperature and humidity) to investigate the present pollution in passenger cabin. In general, the railway air quality was satisfactory. The PM10 and $CO_2$ level on all passenger cabin were below the new guideline level 1 for PM10 $(200{\mu}g/m^3)\;and\;CO_2(2,000ppm)$. Clustering method was carried out to classify the air polluting pattern of the cabin. As a result, the pollutants could be classified to 4 clusters and the origin of pollution is soil, diesel exhaust gas, abrasion of rail and plume.

Rolling Stock Passenger Compartment Fire Safety Surveillance System (철도차량 객실화재 안전감시 시스템)

  • Son Young-Jin;Lee Kang-won;Bang yeon-goon
    • Proceedings of the KSR Conference
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    • pp.58-63
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    • 2005
  • It is an emergency which is in the process of existing using of passenger compartment equipment of the rolling stock to sprout and interphone wiring and by the fire sensor which perceives the smoke in the use passenger car ceiling the receiver which is to driver's cabin it leads and the fire occurrence alarm voice sprouts carried on shoulder but, by no. of the car indication ramp it divides the corresponding vehicle and from inside the passenger compartment of the rolling stock from fire occurrence hour driver's cabin corresponding passenger no. of the car. It is accurate and in order it will be able to perceive. It will be able to confront initially quickly with the technique which it composes. It is regarding the fire safety surveillance system it will be able to embody at the expense which is cheap in order to use existing wiring.

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A Research on Premium In-Flight Service by Enhancing Service Quality focusing on K-Airline's Passengers and Cabin Crews (서비스품질 향상을 통한 기내서비스 명품화에 관한 연구 - K항공사 승객과 승무원을 중심으로 -)

  • Na, Eun-Jung;Kim, Ki-Woong;Yoon, Young-Pyo;Park, Sung-Sik
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.19 no.1
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    • pp.74-87
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    • 2011
  • This paper tried to research the relationship among the passenger's satisfaction and expectation of in-flight service quality, overall satisfaction and passenger's Loyalty by emphasizing on two groups of passengers and cabin crews from K-airline to find out which service quality area should be focused on for pursuing premium in-flight service. Such six service quality areas as in-flight equipment, food&beverage, duty-free sales, service ability, service image and specialized service were conceived and survey questions were made based on relevant previous researches. The analysis has used the data of 281 passengers and 336 cabin crews from K-airline. According to the analysis, in physical service factors, passengers perceive satisfaction from duty-free sales contributes to overall service satisfaction. However, cabin crews believed in-flight equipment and food&beverage are important to overall service satisfaction. In human service factors, both groups seemed to agree service ability and service image have a positive impact on overall service satisfaction. Among service satisfaction factors, the customer's satisfaction from cabin crew's service ability(service response, professional knowledge and foreign language skill) is also proven to be directly connected to customer loyalty.

An Experimental Study on the Active Control of the Motion of Ship Cabin (모델실험에 의한 객실 운동의 능동제어 연구)

  • Bae, Jong-Gug;Lee, Jeh-Won;Joo, Hae-Ho;Shin, Chan-Bai
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.9
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    • pp.106-110
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    • 2002
  • A need fer stable and comfortable cabins in the high-speed passenger ships has increased. For active control of the motion of the ship cabin, a few control algorithms have been applied to the three dimensional real models in the vibration basin. Experimental results show that the feedforward neural network with a linear feedback controller is one of the promising control algorithms for this active control.

Assessment of the Pressure Transient Inside the Passenger Cabin of High-speed Train Using Computational Fluid Dynamics (전산유체역학을 이용한 고속철도차량 객실 내 압력변동 평가)

  • Kwon, Hyeok-Bin;Nam, Sung-Won;Kwak, Jong-Hyun
    • Journal of the Korean Society for Railway
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    • v.12 no.1
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    • pp.65-71
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    • 2009
  • The pressure transient inside the passenger cabin of high-speed train has been assessed using computational fluid dynamics (CFD) based on the axi-symmetric Navier-Stokes equation. The pressure change inside a train have been calculated using first order difference approximation based on a linear equation between the pressure change ratio inside a train and the pressure difference of inside and outside of the train. The numerical results show that the pressure change inside the new Korean high-seed train passing through a tunnel of Seoul-Busan high-speed line at the speed of 330km/h satisfied well the Korean regulation for pressure change inside a passenger cabin if the train is satisfying the train specification for airtightness required by the regulation.

A STUDY ON THE MINIMUM CROSS-SECTIONAL AREA OF HIGH-SPEED RAILWAY TUNNEL SATISFYING PASSENGER EAR DISCOMFORT CRITERIA (승객 이명감 기준을 만족하는 고속철도 터널 최소 단면적에 대한 연구)

  • Kwon, H.B.
    • Journal of computational fluids engineering
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    • v.20 no.3
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    • pp.62-69
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    • 2015
  • Pressure change inside cabin as well as in tunnel has been calculated to assess the passenger pressure comfort of high-speed train. $C-STA^{TM}$, a CFD program based on axi-symmetric Navier-Stokes equation and Roe's FDS has been used to simulate the pressure change in tunnel during a high-speed train passing through it. To present the relative motion between the train and the tunnel, a modified patched grid scheme based on the structured grid system has been employed. The simulation program has been validated by comparing the simulation results with field measurements. Extensive parametric study has been conducted for various train speed, tunnel cross-sectional area and tunnel length to the pressure change in cabin. KTX-Sancheon(KTX2) high-speed train has been chosen for simulation and the train speed have been varied from 200 km/h to 375 km/h. The tunnel length has been varied from 300 m to 7.5 km and tunnel area from $50m^2$ to $120m^2$. Total 504 simulations have been conducted varying the parameters. Based on the database produced from the parametric simulations, minimum tunnel cross-sectional area has been surveyed for various train speeds based on Korean regulation on pressure change in cabin.

Awareness level of basic emergency treatment by airline cabin crew (항공기 승무원의 기본응급처치 의식 조사)

  • Rho, Sang-Gyun;Lee, Jae-Gook;Lee, Jung-Hyun;Kim, Jee-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.9
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    • pp.4075-4082
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    • 2011
  • In the event of the emergency patient care, cabin crew must take the charge of the first responder quickly. The basic emergency treatment knowledge of the cabin crew consisted of 80.5%~97.8% when the emergency scene showed up in the passenger and the types of emergency care with that the cabin crew could cope were bleeding control, fever, seizures, myocardial infarction, airway management, and partial airway obstruction management. Considering these cares, the improper emergency types revealed approximately 3.2%~20.0%. In airway obstruction there was followed by loss of consciousness and this led to cardiac arrest. In case of cardiac arrest, the cabin crew must know how to check breathing and to use the automated external defibrillator(AED). The life-threatening cardiac arrest can happen to any passenger in any time, so the cabin crew should meet with the emergency accident and apply the AED to the cardiac arrest victim.

A Study on Pressure Variation of the Passenger Cabin of Conventional Train for Speed-up (기존선 속도향상을 위한 객실내 압력변동에 관한 연구)

  • 남성원;한기흥
    • Proceedings of the KSR Conference
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    • pp.521-526
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    • 2000
  • Experimental study is conducted to clarify pressure variation of the passenger cabin of conventional train. These pressure variation may give rise to the ear-discomfort. Generally ear-discomfort has been considered as a problem related to high speed train. Because there is also a good progress to speed-up for conventional line, this isn't only a phenomena related to high speed train any longer. In this study, tile pressure variation of interior, gangway and exterior of saemaeul passenger car is measured using the atmospheric pressure sensors in Honam line. From the results of experiment, the pressure variation per second almost close in upon the limitation in the case of Noryong tunnel. Therefore, to accomplish speed-up for conventional train, it may be necessary to study a serial ventilating and the airtightness of carbody.

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A Study for the Service Quality Audit System Development based on the Analysis of Airline Cabin Service Process (항공사 기내서비스 프로세스분석에 근거한 서비스품질 감사시스템개발에 관한 연구)

  • Lee, Chi-Min;Kim, Youn-Sung
    • Journal of the Korean Society for Quality Management
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    • v.40 no.3
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    • pp.406-414
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    • 2012
  • Purpose: In this study, we developed a service quality audit system through analyzing service processes of airlines' cabin service. Methods: Applying the qualitative approach to service processes analysis; 'service blueprint' methodology was developed, providing airlines a blueprint for cabin service and applying the quantitative service quality audit approach called 'walk-through audit', an audit methodology tailored to airline cabin service called PCPA (Passenger Cabin Patrol Audit) was developed. Results: This study tried to apply both the qualitative and the quantitative methodologies to develop service quality audit checklist and tried to develop details to systemize them into a new methodology. Conclusion: This study will be helpful for Airline services improvement by providing 'service quality audit model', so as to find out the problems and share those with the stakeholders.