Reducing speed commands in interval management with speed planning

2019 ◽  
Vol 124 (1272) ◽  
pp. 189-215 ◽  
Author(s):  
T. Riedel ◽  
M. Takahashi ◽  
E. Itoh

ABSTRACTFlight-deck Interval Management (FIM) is a modern airborne self-spacing technology that improves arrival route throughput and runway utilisation and increases hourly arrival capacity by up to four aircraft per hour and per runway, compared to conventional air traffic controller guided arrivals. The National Aeronautics and Space Administration (NASA) has been the leader in FIM research and formulated a logic that was put to an actual flight test in 2017. Despite the overall success of the project, operational deficiencies concerning the number of speed commands, which led to several recommendations for future research before operational implementation, were discovered. In this study, a new logic that implements a two-stage rule-based selection algorithm was developed to overcome those deficiencies. The proposed logic was compared to NASA’s logic on an arrival in Tokyo International Airport with multiple induced error patterns. The results indicate that the new logic significantly decreases the number of speed commands with only minor aggravations in spacing performance. The results that highlight the strengths and weaknesses of both concepts are discussed, and an outlook on and ideas for future research on FIM and the proposed logic are presented.

Author(s):  
Laurence Rognin ◽  
Karim Zeghal ◽  
Isabelle Grimaud ◽  
Eric Hoffman

Controller-in-the-loop experiments were conducted in order to assess the impact on air traffic controller activity of the delegation of spacing task to the flight deck. Three experiments involving a total of 18 European controllers during 7 weeks took place over the past two years. In addition to standard data analysis, a geographical-based analysis was introduced. It consisted in analysing the distribution of manoeuvring instructions and eye fixations as a function of their distance to the sector exit. This analysis confirmed assumptions that delegation leads to anticipate the building of the sequences, and to relieve the controller of maintaining these sequences. Although these initial results suggest a positive impact on controller activity, they still need to be complemented, typically with contextual analysis of monitoring through microscopic analysis of eye fixations.


2019 ◽  
Vol 17 (2) ◽  
Author(s):  
Aliyatur Rofi’a ◽  
Umi Rahayu ◽  
Suprijandani .

Air Traffic Controller is a job that plays an important role in air traffic in charge of controlling aircraft activity. So, it is required to always be ready and not to make the slightest mistake given the impact of air traffic accidents. The complexity and responsibility on the physical health of workers and the chaos of air traffic and aircraft accidents that can endanger the lives of other individuals. The purpose of this study was determine the factors that influence work stress on Air Traffic Controller workers at Juanda International Airport in 2019.This type of research is analytic observational research with a cross-sectional study design. The procedure of data collection is done by observation, interviewing, disseminating and filling out the related questionnaire, and testing the work environment. The sample in this study were 60 Air Traffic Controller workers by simple random sampling. Data were analyzed by univariate, bivariate, and multivariate with statistical test namely Logistic Regression.The results of work stress assessment showed that the work stress level of most workers experienced a mild work stress of 55%, workers who experienced moderate work stress as much as 45%, while workers who experienced severe work stress and workers who did not experience work stress did not exist. Factors that influence the work stress on Air Traffic Controller workers at Perum LPPNPI Madya Surabaya Branch Juanda International Airport in 2019 are workload, education, and work routine.It is recommended to measure lighting, temperature, and humidity regularly in the workspace, scheduling work hours for sure, checking work stress, adjusting to work, and maximizing rest time. Keywords : Air Traffic Controller, Workload, Work Stress


2013 ◽  
Vol 3 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Yvonne Pecena ◽  
Doris Keye ◽  
Kristin Conzelmann ◽  
Dietrich Grasshoff ◽  
Peter Maschke ◽  
...  

The job of an air traffic controller (ATCO) is very specific and demanding. The assessment of potential suitable candidates requires a customized and efficient selection procedure. The German Aerospace Center DLR conducts a highly selective, multiple-stage selection procedure for ab initio ATCO applicants for the German Air Navigation Service Provider DFS. Successful applicants start their training with a training phase at the DFS Academy and then continue with a unit training phase in live traffic. ATCO validity studies are scarcely reported in the international scientific literature and have mainly been conducted in a military context with only small and male samples. This validation study encompasses the data from 430 DFS ATCO trainees, starting with candidate selection and extending to the completion of their training. Validity analyses involved the prediction of training success and several training performance criteria derived from initial training. The final training success rate of about 79% was highly satisfactory and higher than that of other countries. The findings demonstrated that all stages of the selection procedure showed predictive validity toward training performance. Among the best predictors were scores measuring attention and multitasking ability, and ratings on general motivation from the interview.


2014 ◽  
Author(s):  
Dan Chiappe ◽  
Thomas Strybel ◽  
Kim-Phuong Vu ◽  
Lindsay Sturre

2011 ◽  
Author(s):  
Jarek Krajewski ◽  
David Sommer ◽  
Sebastian Schnieder ◽  
Martin Golz

2019 ◽  
Vol 13 (1) ◽  
pp. 88-102
Author(s):  
Sajeev Abraham George ◽  
Anurag C. Tumma

Purpose The purpose of this paper is to benchmark the operational and financial performances of the major Indian seaports to help derive useful insights to improve their performance. Design/methodology/approach A two-stage data envelopment analysis (DEA) methodology has been used with the help of data collected on the 13 major seaports of India. The first stage of the DEA captured the operational efficiencies, while the second stage the financial performance. Findings A window analysis over a period of three years revealed that no port was able to score an overall average efficiency of 100 per cent. The study identified the better performing units among their peers in both the stages. The contrasting results of the study with the traditional operational and financial performance measures used by the ports helped to derive useful insights. Research limitations/implications The data used in the study were majorly limited to the available sources in the public domain. Also, the study was limited to the major seaports which are under the Government of India and no comparisons were carried out with other local or international ports. Practical implications There is a need to prioritize investments and improvement efforts where they are most needed, instead of following a generalized approach. Once the benchmark ports are identified, the port authorities and other relevant stakeholders should work in detail on the factors causing inefficiencies, for possible improvements in performance. Originality/value This paper carried out a two-stage DEA that helped to derive useful insights on operational efficiency and financial performance of the India seaports. A combination of the financial and operational parameters, along with a comparison of the DEA results with the traditional measures, provided a different perspective on the Indian seaport performance. Considering the scarcity of research papers reported in the literature on DEA-based benchmarking studies of seaports in the Indian context, it has the potential to attract future research in this field.


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