Fleet Upgauging and Reducing Flight Frequency

2021 ◽  
pp. 1-14
Author(s):  
Felix Presto ◽  
Volker Gollnick ◽  
Klaus Lütjens
Keyword(s):  
Flight Frequency

Taste Variations in Airport Choice Models

2005 ◽  
Vol 1915 (1) ◽  
pp. 27-35 ◽  
Author(s):  
Somchai Pathomsiri ◽  
Ali Haghani
Keyword(s):  
Multinomial Logit Model ◽  
Random Coefficients ◽  
Policy Implications ◽  
Level Of Service ◽  
Airport Management ◽  
Trip Purpose ◽  
Flight Frequency ◽  
Residency Status ◽  
Mixed Multinomial Logit Model ◽  
The Impact

A mixed multinomial logit model for analyzing choice of departure airport in a multiple-airport system (MAS) is presented. The model aims to capture random taste variations across passengers in response to airport level of service through a set of random coefficients. A case study is carried out for the Baltimore, Maryland–Washington, D.C., MAS. The 1998 Air Passenger Survey database is used to estimate the model. The results indicate significant taste variations in response to flight frequency and airline fare even within smaller segments by both trip purpose and residency status. Analyses of the model provide several insightful results, such as distribution of perceived level of service and time value. In addition, the model is used to simulate the impact of interesting scenarios on market share. Substantial policy implications for airport management are also provided.

Influence of wing loading on Colorado potato beetle flight

2004 ◽  
Vol 136 (1) ◽  
pp. 109-117 ◽  
Author(s):  
Chris J.K. MacQuarrie ◽  
Gilles Boiteau ◽  
Dan Quiring
Keyword(s):  
Wing Surface ◽  
Wing Loading ◽  
Physiological Processes ◽  
Trade Offs ◽  
Potato Beetle ◽  
Flight Capacity ◽  
Flight Frequency ◽  
Access To Water ◽  
Potato Foliage ◽  
Poor Nutrition

AbstractFlight of overwintered and summer population Colorado potato beetles, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), with a range of wing loadings was measured following exposure to different quality diets. Beetles fed a diet of insect-resistant foliage expressing Bacillus thuringiensis tenebrioniz toxins, beetles that did not feed but consumed water, and those that were starved without access to water exhibited a lower range of wing loadings than those fed conventional foliage, but there was no corresponding increase in flight frequency. Exposing potato beetles to poor food or no food resulted in a wing-loading range of 50–140 mg/cm2 compared with a range of 80–200 mg/cm2 for beetles fed conventional foliage. No flight was observed when wing loadings were less than 80 mg/cm2 of wing surface, presumably because of other physiological processes associated with poor nutrition and not because of wing loading per se. Overwintered and summer population beetles fed a diet of conventional potato foliage did not take off when wing loading exceeded 150 mg/cm2 of supporting wing surface. Similar trade-offs between flight capacity and consumption of large meals may exist for other insects.

Fleet Up-Gauging when Reducing Flight Frequency

2020 ◽  
Author(s):  
Felix Presto ◽  
Volker Gollnick ◽  
Klaus Lütjens
Keyword(s):  
Flight Frequency

scholarly journals Worldwide Measurements of Atmospheric CO2 and Other Trace Gas Species Using Commercial Airlines

2008 ◽  
Vol 25 (10) ◽  
pp. 1744-1754 ◽  
Author(s):  
T. Machida ◽  
H. Matsueda ◽  
Y. Sawa ◽  
Y. Nakagawa ◽  
K. Hirotani ◽  
...  
Keyword(s):  
Atmospheric Carbon Dioxide ◽  
The United States ◽  
Trace Gas ◽  
Trace Species ◽  
Measurement Results ◽  
Flight Frequency ◽  
Metal Bellows ◽  
Automated Observation ◽  
Carbon Dioxide Co2 ◽  
Passenger Aircraft

Abstract New automated observation systems for use in passenger aircraft to measure atmospheric carbon dioxide (CO2) and other trace species have been developed and are described in this paper. The Continuous CO2 Measuring Equipment (CME) is composed mainly of a nondispersive infrared analyzer, a datalogger, and two calibration cylinders for in situ CO2 measurements. The Automatic Air Sampling Equipment (ASE), on the other hand, is designed for flask sampling; the instrument, connected to a metal bellows pump, is made up of a specially designed control board and can accommodate 12 flasks. The CME platform can be used to conduct high-frequency measurements of CO2 for obtaining a detailed spatial observation over a wide area, while ASE, despite the limited flight frequency, can provide useful distributions not only of CO2 but also various trace gas species, as well as their isotopic ratios. ASE and CME are installed on the racks in the forward cargo compartment of the aircraft and the air bypass intake is mounted on the air-conditioning duct upstream of the recirculation fan. Both sets of sampling equipment are automatically controlled through input of relevant flight parameters from the aircraft data system. Their deployment in a Boeing 747-400 aircraft was approved by the aviation regulatory agencies in the United States and Japan through issuance of the supplemental type certificate (STC), while the approval for installation of CME in a Boeing 777-200ER was also obtained via STC. First measurement results of CO2 variations obtained by CME and ASE deployed on Japan Airlines (JAL) aircraft are reported herein.

scholarly journals Airline Service Quality Dimensions and Customer Loyalty: Empirical Evidence from Air Passengers’ in Lagos State

2016 ◽  
Vol 5 (2) ◽  
pp. 155-171
Author(s):  
Oghojafor Ben Akpoyomare ◽  
Ladipo Patrick Kunle Adeosun ◽  
Rahim Ajao Ganiyu
Keyword(s):  
Service Quality ◽  
Customer Loyalty ◽  
Pearson Correlation ◽  
Sampling Technique ◽  
Significant Difference ◽  
Lagos State ◽  
Flight Frequency ◽  
Quality Dimensions ◽  
Service Quality Dimensions

Abstract Air travellers are increasingly becoming more demanding in terms of their expectations of the quality of service offered by airline carriers. Hence, operators must improve service delivery to retain their loyalty. This study investigates the relationship between airline service quality dimensions and customer loyalty among air passengers in Lagos state. Causal research design was adopted to examine the aforementioned relationship. Convenience sampling technique was used to survey 600 air travellers. Data collected from the respondents were analysed by using Pearson correlation analysis and Anova. The findings reveal that the service quality and its dimensions are positive and significantly related to each other, overall service quality and customer loyalty. The results of the study indicate no significant difference between customers’ travelling for different motives in their perception of the quality of services. It was also discovered that flight frequency was insignificantly connected to customer loyalty. In line with the above findings, the study concludes that the airline service quality improvement initiatives should begin with recognition of customers’ needs. Correspondingly, airline operators should cultivate strategies to fulfil their service promise along the service quality dimensions, most important to air travellers to enhance customer loyalty.

Latin America budget airline competition to intensify

2016 ◽  
Keyword(s):  
Latin America ◽  
Latin American ◽  
Low Cost ◽  
Air Travel ◽  
Airline Competition ◽  
Content Type ◽  
Flight Frequency ◽  
The Caribbean ◽  
Regional Airports ◽  
The Cost

Subject The expansion of low-cost airlines in Latin America. Significance In late October, the first tickets for flights with Wingo -- a new no-frills carrier running routes between Colombia, Central America and the Caribbean -- went on sale. The new Colombia-based company is competing directly against several traditional and budget airlines for a share of the growing market for domestic and international air travel within the region. Wingo's creation, together with that of Viva Air Peru in November, highlights the continued disruption to a sector long dominated by a small number of high-cost carriers. Impacts Greater availability of reasonably priced international flights will boost Latin American tourism to the Caribbean. Cheap air travel may also help expand and consolidate regional trade ties, reducing the cost of business trips. Increased flight frequency and passenger numbers will help regional airports which have often operated below capacity.

Spatial-Temporal Analysis of Recent Air Passenger Flows

2013 ◽  
Vol 4 (4) ◽  
pp. 37-57 ◽  
Author(s):  
Changjoo Kim ◽  
Hyun Kim
Keyword(s):  
Temporal Analysis ◽  
Temporal Variations ◽  
Aviation Industry ◽  
Passenger Travel ◽  
Geographic Coverage ◽  
Flight Frequency ◽  
Passenger Flows ◽  
Airline Mergers ◽  
Spatial Temporal Analysis ◽  
Traveled Distances

Airline mergers and acquisitions (MAs) are on the rise across the globe and have been a growing trend in the U.S. aviation industry in the last few years. MAs are taking several factors into consideration, such as cost efficiency, competition, and geographic coverage. For airlines, these transactions can eliminate overlapping routes and help reduce competition, leading airlines to achieve higher operating margins. For travelers, MAs often lead to lesser flight frequency, higher airfares or longer travel miles. To explore spatial-temporal variations from airline and passenger perspectives, this paper focuses on 55 major airports in the 50 largest cities between 2000 and 2010. The detailed results of passenger flow patterns suggest that some airports have more spatial imbalance than others in terms of passenger travel distances. Further, the findings indicate that the MAs have different effects on passenger flows and traveled distances, and the effect is complexly related to the airport’s spatial status.

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