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Aero-Journal 2 - 2017


GROWING THE CONGESTED AIRPORTS: SATELLITE PASSENGER TERMINALS

Sarah Al-Hilfi, Pavel Loskot

Abstract:
New models of the passenger and baggage processing are of interest to address the growing demands for air transport while managing the efficiency and utilization or resources as well as the passenger experience. In this paper, a new concept of satellite passenger terminals is discussed which enables to off-load many services from the airport terminals. The satellite terminals can serve multiple airports, and provide a number of benefits to passengers, airports and the local community.
Keywords:
Off-loading, outsourcing, passenger processing, passenger terminal, satellite terminal, transport network

MODELING DYNAMIC MOBILE AREA BY FINITE DIFFERENCE METHOD TO EXTRACT HIGH FLEXIBILITY IN ADVANCED AIRSPACE MANAGEMENT

Grzegorz Drupka, Miroslava Ferencová, Nikolas Žáčik, Tomasz Rogalski

Abstract:
Since Dynamic Mobile Area (DMA) represents temporary volume of airspace in purpose to enable specific activities towards user demands, the article presents DMAs types and particular operating environment. DMA assumption is to enable airspace reservation with the most flexible approach. The overall objective is to construct numerical model of DMA that as few as possible influences on traffic outside area not allowed for traffic, ensuring lowest additionally forced distance in flight plan reorganisation. The concept baseline on Finite Difference Method (FDM) and initial attempts presented in article were executed on created 2D circular model, although DMA may take different shapes in 3D. Path has been presented on Cartesian coordinate and initial evaluations contain comparison between randomly routed path via fixed intermediate point and currently numerical approach. Obtained distance presents potential benefits. Developing solution to avoid DMA applicable in flight planning are in initial stage, therefore selected DMA model has not intricate shape, however, towards user’s demand it shall be different, however, practical and reasonable. Presented state reveals DMAs character in order to construct various geometry models with reference to DMA type and situation’s demand. Considering different DMA types, and different aircraft used within operations or adverse weather character, the figure shall take adequate shape and size but that subject remains for further elaborations. The constructed geometrical model, expanded by proper width to ensure traffic separation inside and outside area, shall be applicable together with algorithm. The constructed DMA model shall let trajectory guide along exclusion area boundary through certain distance necessary to avoid it and reduce additional distance as well.
Keywords:
Advanced Airspace Management; Avoidance of adverse weather in aviation; Dynamic Mobile Area; Flight Planning; Remotely Piloted Aircraft Systems operations

Five Novel Metrics to Support Safety Improvements in Current and Future Air Transport

Nektarios Karanikasa , Steffen Kaspersa, Alfred Roelena,b, Selma Pirica, Robbert van Aalsta, Robert J. de Boer

Abstract:
In the frame of the 4-years research project “Measuring Safety in Aviation – Developing Metrics for Safety Management Systems”, an initial literature review concluded that current safety metrics are not standardized and their validity lies more on reasoning rather than empirical evidence. Next, surveys across aviation companies showed that different metrics are used by various organizations, and indicated a lack of consistent monotonic relationships of SMS processes, operational activity and demographic data with safety outcomes. The researchers with the support and reviews from academic and research institutions, subject matter experts and through pilot studies in aviation companies have developed a set of five new safety metrics. These metrics are based on the premise that the greater the gap between system design (Work-as-Imagined; WaI) and operation (Work-as-Done; WaD), the lower the safety/system performance. The metrics regard: (1) assessment of Safety Management Systems by addressing their design, operation, quality of delivery and internal and external interfaces and dependencies, (2) planning and implementation of safety culture prerequisites, (3) system complexity and coupling, (4) measurement of risk control effectiveness, and (5) utilization of resources. The metrics mentioned above operationalize and correspond to suggestions from academic literature, challenges in professional practice, depictions of system structures, and consideration of “soft” organizational aspects. The particular metrics meet the requirements for accuracy, construct, content and face validity and they can be used jointly or separately to offer to organizations insights into various aspects of their systems.
Keywords:
safety management; safety metrics; safety culture; complexity; coupling; risk controls; resource scarcity

Estimating Nigerian Airports Production Functions. Using Cobb Douglas Analytical Model

Obioma R Nwaogbe, Abraham Pius and Faith O Idoko

Abstract:
This paper evaluates production functions of eight Nigerian airport terminals (domestic and international) and the assessment is underpinned by Cobb Douglas model. A frontier was designed for these airport terminals, to compare their productive efficiencies with that of their frontiers. The function estimation is introduced and guided by econometrics theory. A bespoke trans-log was adopted for data presentation. Both output and input parameters were regressed, to achieve an ideal production frontier of these airport terminals, using a panel data 2005 – 2015. The study findings reveal that only one terminal was operating at the efficiency level (PHC DOM). While, other terminals studied for this study were operating at decreased efficiency; ABJ DOM, ABJ INT’L, KAN DOM, KAN INT’L, MMA DOM, MMA INT’L, and PHC INT’L. The significances of individual variables such as “employees number and total asset” were positive and value at 5.32 and 91.82 respectively. While, terminal capacity and total costs valued, at - 0. 27 and - 0.17, the results reveal that there is decreased productivity at some of the nation’s airports. Variables’ elasticity test confirmed that only “the employee numbers” was elastic, while other variables assessed were inelastic. Therefore, to improve and overcome complex operational challenges, the airport’s management will need to focus their investments on differentiating their operational capabilities. For instance, terminal efficiency can be enhanced by increasing the current number of gates and they should be tactically managed to ensure their effective use. This can be achieved by positioning them in public or limited use space, but then not for preferential use only, as this will be countered productive. Terminal’s operator and management should develop localised strategies to increase their current productivity level, for instance, expand and revamp the existing terminals, to accommodate congestion cause by an increase in passenger traffic.
Keywords:
Airport; performance; production frontier; inputs and outputs

EFFICIENCY ANALYSIS OF THE NIGERIAN AIRPORTS: AN APPLICATION OF DEA-BCC MODEL

Obioma R Nwaogbe, Abraham Pius and Faith O Idoko

Abstract:
The increase in international and domestic movement of passengers and cargos have made the air transport business more especially airports to be more busy in terms of paseenger and aircraft traffic. The aim of this study is to evaluate the airport efficiency performance in Nigeria using DEA-BCC model approch. Non parametric method of production frontier approach were used to analyse 30 airports panel data of the study period from 2003-2013in relation with the airport multiple inputs (terminal capacity, runway dimension, number of employees, total assets and total cost) and outputs ( passenger throughputs and aircraft movement). The result shows that there is high significant relationship between some inputs (total assets, runway dimension and employees) and the outputs. The efficiency scores of the various airports are detremined from the output-orientation analysis. The result also shows that hub airport, commercial/large city airport and private airport are the ones that are productive and efficient. Finally, policy implication on how the inputs are to be improved to make the airports that are not efficient to be efficient.
Keywords:
Airport, efficiency, productivity and DEA

The Basic Profile of Regional Air Carriers in Scandinavia

A. Tomová Jr.

Abstract:
While traditional airlines and low-cost airlines have been studied in numerous studies, regional air carriers in Europe are out of the mainstream interest of academic research. In this paper we synthesize the basic information about Scandinavian regional air carriers, focusing on their operating models, consolidation processes and fleet characteristics. Our findings deliver several arguments which confirm the growing diversity of regional air carriers´ operating models and the emergence of remarkable innovations how to operate regional air services such as virtual airline. The paper suggests a typology of regional air carriers´ operating models based on ownership, autonomy and outsourcing vs insourcing of key business functions in regional carriers. Moreover, the analysis of consolidation aimed at the Scandinavian market with regional air services shows the consolidation as a process going across the borders of European states and across airlines with miscellaneous operating models.
Keywords:
air services, regional carriers, fleet, operating model, consolidation

The Faculty of Operation and Economics of Transport and Communications, University of Žilina

ISSN: 1338-8215