Estimating flight delays is important for airlines, airports, and passengers, as the delays are among major costs in air transportation. Each delay may cause a further propagation of delays. Hence, ...the delay pattern of an airport and the location of the airport in the network can provide useful information for other airports. We address the problem of forecasting flight delays of an airport, utilizing the network information as well as the delay patterns of similar airports in the network. The proposed "Clustered Airport Modeling" (CAM) approach builds a representative time-series for each group of airports and fits a common model (e.g., REG-ARIMA) for each, using the network based features as regressors. The models are then applied individually to each airport data for predicting the airport's flight delays. We also performed a network based analysis of the airports and identified the Betweenness Centrality (BC) score as an effective feature in forecasting the flight delays. The experiments on flight data over seven years using 305 US airports show that CAM provides accurate forecasts of flight delays.
Robustness of the air transport network Lordan, Oriol; Sallan, Jose M.; Simo, Pep ...
Transportation research. Part E, Logistics and transportation review,
08/2014, Letnik:
68
Journal Article
Recenzirano
•This paper defines a methodology to detect critical airports of the air transport network (ATN).•The methodology is based on the effect of airport disconnection on size of giant component.•A list of ...critical airports for the global ATN of November 2011–November 2012 is presented.•A new node selection criterion to disconnect airports presented, based on Bonacich power centrality.•This new criterion is compared to a wide range of node selection criteria present in the literature.
This paper presents a methodology for the detection of critical airports (those whose isolation would cause the largest losses in network connectivity) in the global air transport network (ATN), based on simulating an attack on selected ATN airports using different adaptive selection criteria. The performances of several node selection criteria are compared, together with a new criterion based on Bonacich power centrality. The results show that most critical airports can be detected with an adaptive strategy based on betweenness centrality. The detection of such airports may help the development of contingency plans to develop an appropriate response to any airport closure.
For travellers in the airport, waiting is often associated as an unpleasant activity. One of the reasons of the perception is because waiting area is viewed as a space for uncomfortable waiting ...experience. Bissel explains that the experience of waiting is often conceptualised as a stasis period that bore the passenger to be passive. Regarding to this understanding, Schweizer and Gasparini try to dissect the potential of a waiting space by using active waiting concept as a lens of analysing the space. According to their concept, active waiting is where waiting is seen as an activity that has balance focus between achieving what is expected and how to have comfort when experiencing the process itself. This paper argues, by incorporating this concept to a waiting space, passengers will experience in both passenger system and a new occasional experience. This paper will observe and analyse the relation between spatial elements and the behaviour of passengers at a waiting area within an airport terminal, through the lens of active waiting concept. The experience of waiting can be achieved through three stages of habitation, which is lingering, tarrying, and the state of dwelling. The expected result from this study is to discover the potentials of waiting area at an airport. Findings from this paper may be useful for planning the airport waiting in order to create a more comfortable experience for the body and state of mind of the passengers.
Turkey’s airport industry has experienced substantial growth over the recent years, but few studies have analysed their operational efficiency. This paper uses Malmquist productivity index (classical ...and bootstrapping) to assess the operational performance of 21 Turkey airports during the period of 2009 through 2014. The findings indicated that the efficiency and productivity of the majority of the Turkish airports increased during the period under investigation. However, in the period of 2011–2012, a significant decline was observed in efficiency. The main reason of this stagnation is the significant increase in the physical capacity of the Turkish airports in 2011. The non-reflection of the increasing physical capacity to passenger and cargo traffic caused a decline in 2012. In spite of declining in the period of 2011–2012, efficiency values of Turkish airports have increased again since 2013. Moreover, decomposition of the Malmquist index showed that most Turkey airports experienced losses in efficiency; however, in terms of technology, they have progressed. Two significant factors (i.e. operating hours and percentage of international traffic) were identified by the Simar-Wilson double bootstrapping regression analysis as explaining variations in airport efficiency.
•Airport performance evaluations are very important for the development of a country.•Turkey’s airport industry has experienced substantial growth over the recent years.•This study evaluates Turkish airports comparative efficiencies for 2009-2014 period.•Productivity of the majority of the Turkish airports increased during the related period.•In the period of 2011-2012, a significant decline was observed in efficiency.
Airport status in city construction, regional layout, and transportation systems is analyzed. Influence of operation and management in military-civilian airports is pointed out from the perspective ...of airport planning and design and operation management. The airfield planning and design are analyzed from the capacity of runway, taxiway, and apron. The displaced threshold can meet the needs of the aviation business, while taking reconstruction and expansion of airport.
PROXIMITY AND INVESTMENT Giroud, Xavier
The Quarterly journal of economics,
05/2013, Letnik:
128, Številka:
2
Journal Article
Recenzirano
Odprti dostop
Proximity to plants makes it easier for headquarters to monitor and acquire information about plants. In this article, I estimate the effects of headquarters’ proximity to plants on plant-level ...investment and productivity. Using the introduction of new airline routes as a source of exogenous variation in proximity, I find that new airline routes that reduce the travel time between headquarters and plants lead to an increase in plant-level investment of 8% to 9% and an increase in plants’ total factor productivity of 1.3% to 1.4%. The results are robust when I control for local and firm-level shocks that could potentially drive the introduction of new airline routes, when I consider only new airline routes that are the outcome of a merger between two airlines or the opening of a new hub, and when I consider only indirect flights where either the last leg of the flight (involving the plant’s home airport) or the first leg of the flight (involving headquarters’ home airport) remains unchanged. Moreover, the results are stronger in the earlier years of the sample period and for firms whose headquarters is more time-constrained. In addition, they also hold at the extensive margin, that is, when I consider plant openings and closures.
Abstract
Issue
Airports provide infrastructure for an industry situated between economic development and environmental detriment. In Western Sydney, a new international airport is being built in an ...area of sustained population growth. To proactively address the transformation created by the airport, a research hub in South Western Sydney began in 2015 to prepare a health promotion and protection agenda surrounding the airport.
Description
The concept of an airport that proactively addresses social determinants of health (equity) was introduced, and has been met with in-principle positive support from aviation-related stakeholders. However, follow through with demonstrated commitment has been limited. An exploration of the policy domain of the Western Sydney airport region was undertaken to identify the organisations involved and the control they exert over key determinants of health (equity) and their interrelationship. The intent was to gauge urban health professionals' ability to influence change within the airport planning and development process.
Results
The analysis shows that power within airport planning is spread widely vertically and horizontally. Despite having a centralised planning organisation, decision making authority is dispersed across multiple levels of public and private governance within the wider airport region. Organisations are bound by (or defer to) higher level regulatory guidelines or legislation for technical aspects of airport planning. Those with more flexible influence lack incentive to engage with broader public health activities.
Lessons
Lobbying for better public health outcomes has bypassed the complex planning system within airport development settings. Opportunities exist to influence planning through formal and non-formal structures for specific “wins”. However, thinking outside a health box may provide the biggest opportunity for change yet, as shown by the successful legal blocking of the Heathrow runway expansion by climate change activists.
Key messages
Airports as major urban infrastructure sit under complex organisational structures both in their development and management. Public health responses need to be more targeted and innovative in advocacy and engagement.
This collection of essays has been assembled and developed from papers given at the Ambient@40 International Conference held in February 2018 at the University of Huddersfield. The original premise ...of the conference was not merely to celebrate Eno’s work and the landmark release of Music for Airports in 1978, but to consider the development of the genre, how it has permeated our wider musical culture, and what the role of such music is today given the societal changes that have occurred since the release of that album. In the context of the conference, ambient was considered from the perspectives of aesthetic, influence, appropriation, process, strategy and activity. A detailed consideration of each of these topics could fill many volumes. With that in mind, this book does not seek to provide an in-depth analysis of each of these topics or a comprehensive history of the last 40 years of ambient music. Rather it provides a series of provocations, observations and reflections that each open up seams for further discussion. As such, this book should be read as a starting point for future research, one that seeks to critically interrogate the very meaning of ‘ambient’, how it creates its effect, and how the genre can remain vital and relevant in twenty-first century music-making.
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