• 산업공학
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• 제23권4호
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• pp.286-299
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• 2010

Recently, as concerns about environmental improvement have increased, various environmentally friendly transportation services have been developed and introduced. However, the effect on the introduction of such services has been not analyzed through a systematic methodology and process. Therefore, this research aims at suggesting a framework to analyze the effect of an environmentally friendly transportation service and investigating the validity of the framework. To the ends, a process to analyze the degree of improvement in transportation systems and environments, the linkage with existing policies, and profitability of the service is proposed. In addition, the concept and value of carsharing service, a representative environmentally friendly transportation service are explained and then the effects of the service are examined in terms of the aforementioned analytic areas, respectively. The results of this research can be utilized to provide the validity of a newly developed environmentally friendly transportation service and reflected to the policies of transportation and environment.

• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.217-228
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• 2020

The selection factors of service companies have changed in accordance with intensifying competition in the marine transportation service market and environment changes of transportation services. To explore the important factors of customer choice to marine transportation service, this study empirically examines the influence of these selection factors; service provision area, price competitiveness, corporate image, service expertise, and sales support, on transaction continuity through customers' perceived service value and satisfaction. Based on an online survey with those in the Korean marine transportation industry, this study conducted statistical analyses using structural equation modeling. Based on relevant previous studies, the current study constructed a total of 55 survey questions. Finally, 213 questionnaires were collected. Among the five selection factors, corporate image did not affect perceived service value, and price competitiveness was still the most important factor. However, service expertise and sales support were found to be more important factors than regional factors. In order to maintain transaction continuity, shipping companies should also strive to improve their service quality to their customers. In particular, service quality strategies focused on time and regional factors should develop to strategies with the key factors for the changed business environment.

• 대한안전경영과학회지
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• 제2권3호
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• pp.61-79
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• 2000

It is very important to delivery timely and safely items in logistics. So, the home delivery service system is introduced by many enterprises. Also, the beginning in 1990's, the rapid increase of automobile increased logistics cost and led to road stagnation. So, the railway transportation use in logistics can be considered. The railway transportation in home delivery service system can overcome the limit of transportation by land. This study evaluate railway transportation in home delivery service system by economical efficiency and timeliness.

• 한국항해학회지
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• 제24권4호
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• pp.269-283
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• 2000

Service is the source of firm's competitive advantage in recent years. The importance of service quality in any service industry doesn't need to be disputed. Customers have expected the improvement of the quality of service they receive ,so providers are struggling to meet these expectations. This study aims at finding factors of service quality in passenger transportation. An empirical investigation and the measurement on the perceived Service Quality by customers in the passenger transportation system was carried out. The purpose of this study is to clarify the factors of service quality on the basis of service marketing concept. In order to fulfill the objectives, this paper combines research tools that include both empirical study and documentary research. Data was gathered from 239 passengers by the use of questionnaire. In this study, the established hypotheses were generated on the basis of the service quality evaluation (SERVQUAL) model. Research findings through empirical test are as follows. First, five service quality dimensions in passenger transportation are identical to SERVQUAL dimensions defined by Parasuraman, Zeithaml, and Berry in 1988. Second, demographic segments such as gender and age don't have significant different dimension of service quality. Third, there is no significant difference between groups by experiences such as price level, abroad tour and vehicle type in determinants of transportation service quality.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제12권1호
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• pp.31-40
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• 2023

교통약자의 이동권을 보장하기 위해서 이동지원 편의시설 확충, 특별교통수단 공급, 데이터·AI 기반으로 이동패턴 분석으로 대중교통 노선 계획 및 요금정책 수립 등 국내외에서는 다양한 정책과 서비스가 시행되고 있다. 그러나 서비스 이용자인 교통약자 관점에서 필요한 상황에서 원하는 교통수단을 보다 편리하게 이용하기에는 여전히 서비스 편의성을 향상시키기 위한 연구가 필요하다. 본 연구에서는 교통약자 이동편의 증진을 위한 정책과 서비스를 살펴보고, 교통약자 이동지원을 위한 마이데이터 기반 서비스 모델을 제시한다. 제시한 서비스 모델에서는 교통약자가 개인별 상황에 따라 교통수단을 자유롭게 선택하여 이용할 수 있고, 국가 또는 지자체가 제공하는 교통복지 바우처 혜택을 동일하게 제공받을 수 있다. 제시한 서비스 모델은 개인데이터를 안전하게 수집하고 활용할 수 있도록 지원하는 마이데이터 플랫폼, 마이데이터 기반으로 교통복지 수혜 대상자 인증, 서비스 이용 후 요금정산을 위한 결제 기능을 핵심 구성요소로 정의하고 있다. 본 연구에서는 제시한 서비스 모델을 구현하고 대전시의 교통약자를 대상으로 실증서비스를 실시함으로써 이용자 관점에서의 서비스 만족도를 조사하였다.

• 한국항만경제학회지
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• 제28권2호
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• pp.195-211
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• 2012

세계화의 급속한 진전으로 인해 촉발된 물류활동의 글로벌화에 따라 새롭게 부각되고 있는 분야 중 하나인 해공복합운송은 해상운송의 경제성과 항공운송의 신속성을 통해 수송비용의 절감과 운송시간의 단축이란 목적을 달성하기 위하여 해상운송수단과 항공운송수단을 결합한 국제운송방식이다. 본 연구는 해공복합운송에서 포워더의 만족에 영향을 미치는 실제운송인의 서비스품질구성 요인을 규명하기 위하여 실제운송인을 이용해 본 경험이 있는 현직 포워더를 대상으로SERVPERF 모형을 이용하여 실증분석을 실시하였다. 통계적 검정결과 SERVPERF 모형에서 제시한 유형성, 신뢰성, 대응성, 확신성, 공감성 가운데 신뢰성, 대응성, 확신성, 유형성의 순서로 중요하다는 것이 검증되었으나 공감성은 통계적으로 유의하지 않게 나타났다. 이는 복합운송 산업의 특성에 따라 약속된 서비스를 신뢰할 수 있고, 정확하게 수행 가능한 능력으로 구성되는 요인인 신뢰성의 중요성이 나타난 결과라 할 수 있다. 그리고 기업이 고객에게 제공하고자 하는 개별적인 배려와 관심으로 구성되는 요인인 공감성의 경우 통계적으로 유의하지 않게 나타났는데, 이 또한 산업의 특성을 반영한 결과라고 할 수 있다.

• 대한토목학회논문집
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• 제31권3D호
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• pp.383-389
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• 2011

본 연구는 교통기본법(안)에 명시된 대중교통 사각지대 설정과 평가를 위한 3가지 평가척도를 제시하였다. 평가척도는 행정동 단위의 대중교통 노선 및 운행실태에 대한 기초 DB를 적용하여 대중교통 서비스권역, 대중교통 배차간격, 1일 총 운행시간을 각각 A-F(6등급)으로 구분하였다. 대중교통 사각지대 평가척도는 정부 및 지자체에서 대중교통 서비스 낙후지역의 최저 대중교통 공급 및 연계노선 계획, 최저배차계획, 1일 대중교통 총 운행시간 계획에 기준으로 활용할 수 있을 것이다.

• 한국포장학회지
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• 제21권2호
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• pp.61-65
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• 2015

Agricultural products packaged for transportation are put in the various dangerous environments owing to the damage factors like vibration, shock, compression, climate etc. under the distribution process. On fruits packaging for transportation, especially, the shock and vibration is considered as the most important damage factors. A major cause of shock damage to fruits is drops during manual handling. Especially, the damages of fruits during the parcel delivery service are very serious. The parcel delivery services of fruits are increasing and contribute to increasing of farm house earning. Also, the freight vehicle is mostly used to transport the fruits. Shock and impact generated by the freight vehicle may give serious damage to fruits. The optimum packaging design of parcel delivery service of fruits during transportation is required to reduce the fruits damages. In order to design the packaging system for parcel delivery service of fruits considering the transportation environment, the comprehension of characteristics for vibration and shock generated by manual handling and acting on transportation vehicles under various road conditions and loading methods is required. This research was performed to analyze the shock characteristics, acceleration level and power spectral density (PSD) during the parcel delivery service of fruits. The overall level of recommended PSD profile in a specific transportation of parcel delivery service for fruits was $0.63G_{rms}$.

• 한국ITS학회 논문지
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• 제22권3호
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• pp.104-115
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• 2023

수요대응 교통수단 및 자율주행 대중교통서비스 등 이용자 중심의 대중교통서비스가 제공되고 있으나 수요대응 교통수단의 도입 기준인 대중교통 최소서비스 수준은 이용자의 대중교통 접근성을 확인할 수 있는 자료의 부재로 운영자 중심으로 평가되고 있다. 본 연구에서는 이용자의 대중교통 접근성을 파악할 수 있는 알뜰교통카드 데이터를 기반으로 법정동보다 작은 GRID 분석을 통해 동일 법정동 내에서도 대중교통 접근성이 차이가 있음을 확인하였고, 이를 기반으로 이용자 중심의 대중교통 최소서비스 수준 개선 방안을 제안하였다. 제안한 방식을 적용한 결과 현재 대중교통 최소서비스 수준에서는 확보 지역인 많은 법정동이 비확보 지역으로 분석되었다. 그러나 알뜰교통카드 데이터의 접근 시간은 이동 시간과 대기 시간을 포함하고 있으므로 확보 여부 판단 기준에 대한 추가적인 검토가 필요하다.

• Advances in concrete construction
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• 제8권1호
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• pp.55-64
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• 2019

Chloride corrosion has become the main factor of reducing the service life of reinforced concrete structures. The object of this paper is to propose a theoretical model that predicts the service life of chloride-corrosive concrete under fatigue load. In the process of modeling, the concrete is divided into two parts, microcrack and matrix. Taking the variation of mcirocrack area caused by fatigue load into account, an equation of chloride diffusion coefficient under fatigue load is established, and then the predictive model is developed based on Fick's second law. This model has an analytic solution and is reasonable in comparison to previous studies. Finally, some factors (chloride diffusion coefficient, surface chloride concentration and fatigue parameter) are analyzed to further investigate this model. The results indicate: the time to pit-to-crack transition and time to crack growth should not be neglected when predicting service life of concrete in strong corrosive condition; the type of fatigue loads also has a great impact on lifetime of concrete. In generally, this model is convenient to predict service life of chloride-corrosive concrete with different water to cement ratio, under different corrosive condition and under different types of fatigue load.