Lau, Sin Heng. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (p. 17). / Abstracts in English and Chinese.

published_or_final_version / Mathematics / Master / Master of Philosophy

In the first study, we formulate the passenger and cargo allocation problem as a variant of the price-dependent multi-item newsvendor model with capacity constraints. The effects of baggage weight, pricing, and costing on the number of passengers and amount of cargo carried are studied. Based on the model and the existing practice of carriers, we develop several illustrative cases and fend that to maximize profit, large aircraft may need to reduce their baggage limits significantly from the current policy. / In the second study, we propose the dynamic partnership concept, which assures a feasible partnership in an online logistics community. After identifying the platform requirements, a preliminary knowledge framework which describes the collaborative knowledge and new knowledge managing approaches is suggested. / In the third study, we provide a two-phase framework for an airfreight forwarder's resource planning. In each timed phase, an optimization model first determines the aggregates and a simulation model then examines the disaggregated situations evaluating whether the aggregate estimates are viable under disaggregation and uncertainties. Here, a set of measurements are established to evaluate the performance of a resource plan. For the inadequate plans, areas of possible improvements are identified for revision. / Three studies in air cargo logistics are conducted respectively, covering the following three areas: carrier's passenger and cargo management, logistics service provider's partnership strategy, and an airfreight forwarder's resource planning. / study 1. Optimal baggage limit policy: airline passenger and cargo allocation -- study 2. Dynamic partnership in online logistics community: concepts and a knowledge framework -- study 3. An airfreight forwarder's aggregate resource planning: booking of cargo space and disaggregation viability. / Wong, Wai Hung. / Adviser: Lawrence C. Leung. / Source: Dissertation Abstracts International, Volume: 70-06, Section: A, page: 2121. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 172-175). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest dissertations and theses, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese. / School code: 1307.

published_or_final_version / Mathematics / Master / Master of Philosophy

This thesis proposes that a baggage handling system (BHS) environment can be defined and coupled to a whole life cycle cost (WLCC NPV) model. The results from specific experiments using the model can be used as the basis by which to commercially compare BHS flight build types of any capacity, and BHS geographical location. The model examined the three flight build types(i): Fully automatic build2; (ii) Semi-automatic build, and(iii); Manual build. The model has the ability to calculate a bag flow busy hour rate, and to replicate the baggage flow characteristics observed within real BHS operations. Whole life cycle costs (WLCC NPV) results are produced, and these form the basis by which the comparison of BHS types is made. An overall WLCC NPV scatter diagram was produced, which is a summation of each of the test sensitivities. The assumptions and limitations of the analysis are provided. It is proposed that the results, conclusions and recommendations shall be of value to airports, airlines, and design consultants.

This thesis proposes that a baggage handling system (BHS) environment can be defined and coupled to a whole life cycle cost (WLCC NPV) model. The results from specific experiments using the model can be used as the basis by which to commercially compare BHS flight build types of any capacity, and BHS geographical location. The model examined the three flight build types(i): Fully automatic build2; (ii) Semi-automatic build, and(iii); Manual build. The model has the ability to calculate a bag flow busy hour rate, and to replicate the baggage flow characteristics observed within real BHS operations. Whole life cycle costs (WLCC NPV) results are produced, and these form the basis by which the comparison of BHS types is made. An overall WLCC NPV scatter diagram was produced, which is a summation of each of the test sensitivities. The assumptions and limitations of the analysis are provided. It is proposed that the results, conclusions and recommendations shall be of value to airports, airlines, and design consultants.

Summary Aim: The aim with the study was to explore the work conditions of the Ground staff performing unloading and loading from an HTO perspective, and to identify areas for improvement. Research questions: 1. Which factors are important for the work performance? 2. To what degree do the employees follow the work instructions regarding the use of the equipment on the ramp? 3. Which recommendations can be provided to improve work performance at ramp operations and minimize risks for accidents? Background: Ramp operations have, according to Studic et al., (2017), repeatedly been estimated as one of the areas with the highest, still increasing, safety risks. Passenier, Sharpanskykh and de Boer (2015) also confirms how the work within the ramp operations, and performance of unloading and loading, is an area with high risks of injuries and deaths. Methods: The study was conducted with a qualitative research approach and Descriptive Case study design (Baxter & Jacks, 2008). Results: Five categories were found; time pressure, “safety mindset”, education, culture and equipment. The findings also showed that the employees prioritize the safety of the aircraft rather than their own safety. Conclusions: Out of the five factors, time pressure and equipment are the factors in the environment which the respondents have to work in line with to make it function in the environment.

<p>The purpose of this master thesis has been to develop a baggage handling process at Stockholm Skavsta Airport that is cost-efficient, in order to prepare for the expected expansion of the airport. When developing the new process it was a directive to examine the possibilities of using radio frequency identification, RFID, technology and also that the required investment for the new process should have a payback time of no more than two to three years. The current process contains a completely manual sorting activity, which is both costly in terms of personnel and creates some mishandling of baggage due to the human factor. Our recommendation is a baggage handling process that use automatic sorting through RFID technology that eliminates the mishandling of baggage and reduce the personnel costs and at the same time have a payback period of less than three years. The main cost driver is the RFID tag costs and therefore our process is a so called closed-loop system, where the tags are reused several times and require very little work in between uses. The proposed physical layout consists of a drawing of the physical layout of the baggage sorting hall, a description of the RFID system, and the required information system software.</p>

The purpose of this master thesis has been to develop a baggage handling process at Stockholm Skavsta Airport that is cost-efficient, in order to prepare for the expected expansion of the airport. When developing the new process it was a directive to examine the possibilities of using radio frequency identification, RFID, technology and also that the required investment for the new process should have a payback time of no more than two to three years. The current process contains a completely manual sorting activity, which is both costly in terms of personnel and creates some mishandling of baggage due to the human factor. Our recommendation is a baggage handling process that use automatic sorting through RFID technology that eliminates the mishandling of baggage and reduce the personnel costs and at the same time have a payback period of less than three years. The main cost driver is the RFID tag costs and therefore our process is a so called closed-loop system, where the tags are reused several times and require very little work in between uses. The proposed physical layout consists of a drawing of the physical layout of the baggage sorting hall, a description of the RFID system, and the required information system software.

This study had the standpoint in the terms that refers to ground handlers on a Swedish airport. The risks involved in loading and unloading the goods. The issue grew as the knowledge increased about the Human, Technology and Organisation (HTO). The part of the background content elements and concepts touching stress, concept of safety, safety at the airports. The aim of this study was to describe if the safety, risks eventually influences ground handlers by stress linked to loading and unloading of aircrafts. To picture the association between them, HTO and demand-control-support perspective where used. The study didn´t cover goals of interventions. The study design in use where the descriptive case study. Methods in use where individual interviewing, focus group interviewing, participant observation with so called full involvement on the ramp. Selection of participant where based on staff on duty. Member of the leadership did de selection guided by the scheduled interviews. The study comprehended the importance of working schedule, organisation issues, deliberately assumption of risk and a high risk of accident. Support from nearest and highest leadership was high. There were indications about the importance of social support and sense of security in the team. Most concerned newly employed. The importance of the type of aircraft, problems connected with narrow bodied aircrafts. Keep on the work to change this type of aircraft, above all else on nightly goods aircrafts will radically improve the ergonomics and safety. Next scientific work suggested to look at the connection between the equipment used by load, unloading and stress. When the type of aircrafts has been changed look at the impact on stress, risks and safety. Also suggested scientific work to look at the organisation of work in and between the team. How the organisation works out practically on the ramp, between ground handlers and custom service and between ground handlers and the leadership. Next scientific work could also look closer to the hypothetical causal model described in this work. Aimed to enhance and develop the systematic work environment management (SAM).