2015, vol. 5, núm. 1
http://hdl.handle.net/2117/78829
2024-03-29T09:01:31ZThe deceleration of aircraft in overrun accidents from the point of first impact to the end of the wreckage path
http://hdl.handle.net/2117/78862
The deceleration of aircraft in overrun accidents from the point of first impact to the end of the wreckage path
Pitfield, David E.
Purpose: This paper outlines previous attempts to model aircraft deceleration and using a newer database containing a
greater number of observations tries to refine the model.
Design/methodology: It is noted that data inadequacies still necessitate the estimation of a given acceleration for the
aircraft wreckage path, but that there are more opportunities to change the intercept in a regression model to reflect
categorical and dummy variables that proxy factors such as runway condition, the degree of control exercised by the pilot
during the crash, the speed at the point of first impact (hereafter POFI), headwind, rain, characteristics of the terrain on the
wreckage path and aborted take-offs.
Findings: The contribution of some of the explanatory variables can be seen. It is a shame other potential influences are
not found to be significant. It is important to understand deceleration so that the wreckage location of aircraft accidents can
be understood. This then gives guidance of appropriate runway safety areas.
Originality/value: This is the first time this has been attempted on the expanded accident database.
2015-11-05T18:48:20ZPitfield, David E.Purpose: This paper outlines previous attempts to model aircraft deceleration and using a newer database containing a
greater number of observations tries to refine the model.
Design/methodology: It is noted that data inadequacies still necessitate the estimation of a given acceleration for the
aircraft wreckage path, but that there are more opportunities to change the intercept in a regression model to reflect
categorical and dummy variables that proxy factors such as runway condition, the degree of control exercised by the pilot
during the crash, the speed at the point of first impact (hereafter POFI), headwind, rain, characteristics of the terrain on the
wreckage path and aborted take-offs.
Findings: The contribution of some of the explanatory variables can be seen. It is a shame other potential influences are
not found to be significant. It is important to understand deceleration so that the wreckage location of aircraft accidents can
be understood. This then gives guidance of appropriate runway safety areas.
Originality/value: This is the first time this has been attempted on the expanded accident database.Evolution of the airport and air transport industry in Colombia and its impact on the economy
http://hdl.handle.net/2117/78858
Evolution of the airport and air transport industry in Colombia and its impact on the economy
Díaz Olariaga, Oscar; Ávila Álvarez, Jaime
This article aims to describe the development and evolution of the airports and air transport industry in
Colombia. During the past fifteen years Colombia has witnessed a remarkably rapid and dynamic growth in air transport.
This period coincides with the establishment and continuous implementation of public policy specifically designed for the
air transport sector and airports.
Design/methodology: The evolution of air transport in Colombia is evaluated descriptively through the analysis of air
transport and socio-economic historical data. The impact of public and investment policies is analyzed through a causeeffect
approach.
Findings: This paper describes how the air transport/airport industry in Colombia has been directly and positively affected
by the implementation of public policies and other legislation, while measuring the effect and impact of this industry on the
Colombian economy.
Originality/value: This work fills a notorious deficiency in specialized literature concerning air transport in Colombia and
Latin America in all its aspects and dimensions.
2015-11-05T18:16:59ZDíaz Olariaga, OscarÁvila Álvarez, JaimeThis article aims to describe the development and evolution of the airports and air transport industry in
Colombia. During the past fifteen years Colombia has witnessed a remarkably rapid and dynamic growth in air transport.
This period coincides with the establishment and continuous implementation of public policy specifically designed for the
air transport sector and airports.
Design/methodology: The evolution of air transport in Colombia is evaluated descriptively through the analysis of air
transport and socio-economic historical data. The impact of public and investment policies is analyzed through a causeeffect
approach.
Findings: This paper describes how the air transport/airport industry in Colombia has been directly and positively affected
by the implementation of public policies and other legislation, while measuring the effect and impact of this industry on the
Colombian economy.
Originality/value: This work fills a notorious deficiency in specialized literature concerning air transport in Colombia and
Latin America in all its aspects and dimensions.Developing a model for solving the flight perturbation problem
http://hdl.handle.net/2117/78845
Developing a model for solving the flight perturbation problem
Nickkar, Amirreza; Seyed-Hosseini, Seyed-Mohammad; Javanshir, Hassan; Khaksar, Hasan
Purpose: In the aviation and airline industry, crew costs are the second largest direct operating cost next to the fuel costs.
But unlike the fuel costs, a considerable portion of the crew costs can be saved through optimized utilization of the internal
resources of an airline company. Therefore, solving the flight perturbation scheduling problem, in order to provide an
optimized schedule in a comprehensive manner that covered all problem dimensions simultaneously, is very important. In
this paper, we defined an integrated recovery model as that which is able to recover aircraft and crew dimensions
simultaneously in order to produce more economical solutions and create fewer incompatibilities between the decisions.
Design/methodology: Current research is performed based on the development of one of the flight rescheduling models
with disruption management approach wherein two solution strategies for flight perturbation problem are presented:
Dantzig-Wolfe decomposition and Lagrangian heuristic.
Findings: According to the results of this research, Lagrangian heuristic approach for the DW-MPsolved the problem
optimally in all known cases. Also, this strategy based on the Dantig-Wolfe decomposition manage to produce a solution
within an acceptable time (Under 1 Sec).
Originality/value: This model will support the decisions of the flight controllers in the operation centers for the airlines.
When the flight network faces a problem the flight controllers achieve a set of ranked answers using this model thus,
applying crew’s conditions in the proposed model caused this model to be closer to actual conditions
2015-11-05T16:26:42ZNickkar, AmirrezaSeyed-Hosseini, Seyed-MohammadJavanshir, HassanKhaksar, HasanPurpose: In the aviation and airline industry, crew costs are the second largest direct operating cost next to the fuel costs.
But unlike the fuel costs, a considerable portion of the crew costs can be saved through optimized utilization of the internal
resources of an airline company. Therefore, solving the flight perturbation scheduling problem, in order to provide an
optimized schedule in a comprehensive manner that covered all problem dimensions simultaneously, is very important. In
this paper, we defined an integrated recovery model as that which is able to recover aircraft and crew dimensions
simultaneously in order to produce more economical solutions and create fewer incompatibilities between the decisions.
Design/methodology: Current research is performed based on the development of one of the flight rescheduling models
with disruption management approach wherein two solution strategies for flight perturbation problem are presented:
Dantzig-Wolfe decomposition and Lagrangian heuristic.
Findings: According to the results of this research, Lagrangian heuristic approach for the DW-MPsolved the problem
optimally in all known cases. Also, this strategy based on the Dantig-Wolfe decomposition manage to produce a solution
within an acceptable time (Under 1 Sec).
Originality/value: This model will support the decisions of the flight controllers in the operation centers for the airlines.
When the flight network faces a problem the flight controllers achieve a set of ranked answers using this model thus,
applying crew’s conditions in the proposed model caused this model to be closer to actual conditionsAirport surface access and mobile apps
http://hdl.handle.net/2117/78839
Airport surface access and mobile apps
Martín-Domingo, Luis; Martín, Juan Carlos
Purpose: Airport Surface Access faces two main opposite issues: (1) cars, being the main transport mode, contribute to the increasing level of congestion and pollution of cities; and (2) simultaneously, parking fees are one important source of airports commercial revenue, creating a dilemma for airports when facing the problem. Following the recent trend of air passengers travelling with Smartphone (78% in 2013), the purpose of this paper is to monitor the adoption of mobile Applications (Apps) by airports and to analyze if the information and functions provided in those Apps can help to overcome the above two issues.
Design/methodology: 31 iPhone App of some of the largest European airports were evaluated in the lab using the
evaluation model of Destinations Mobile Applications (Scolari & Fernández-Cavia, 2014) adapted for the Airport Surface Access on Airport Apps.
Findings: The Apps evaluated provided a very limited functionality to help passengers to plan and book their trips to/from the airports on public transports and gave high priority to parking information and services.
Originality/value: Although Airport Surface Access has been a widely researched, the originality of this paper is the
analysis of airport mobile Apps as a potential tool for airports to deal with the surface airport access problems.
2015-11-05T15:16:12ZMartín-Domingo, LuisMartín, Juan CarlosPurpose: Airport Surface Access faces two main opposite issues: (1) cars, being the main transport mode, contribute to the increasing level of congestion and pollution of cities; and (2) simultaneously, parking fees are one important source of airports commercial revenue, creating a dilemma for airports when facing the problem. Following the recent trend of air passengers travelling with Smartphone (78% in 2013), the purpose of this paper is to monitor the adoption of mobile Applications (Apps) by airports and to analyze if the information and functions provided in those Apps can help to overcome the above two issues.
Design/methodology: 31 iPhone App of some of the largest European airports were evaluated in the lab using the
evaluation model of Destinations Mobile Applications (Scolari & Fernández-Cavia, 2014) adapted for the Airport Surface Access on Airport Apps.
Findings: The Apps evaluated provided a very limited functionality to help passengers to plan and book their trips to/from the airports on public transports and gave high priority to parking information and services.
Originality/value: Although Airport Surface Access has been a widely researched, the originality of this paper is the
analysis of airport mobile Apps as a potential tool for airports to deal with the surface airport access problems.