10 resultados para Alexandria Airport

em WestminsterResearch - UK


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Airports have become increasingly active in route development as a means of attracting, growing and retaining air services. However, little is known about the different levels of route development activity at airports, or the extent to which route development activity affects performance. Based on the findings of a survey of 124 airports worldwide, this study finds that larger airports are significantly more active than smaller airports. It also finds that private airports are more active than public airports, and that airports in Europe are more active than airports in other world regions, although differences according to ownership and location are not significant. Route development activity has a significant positive effect on performance. Factors associated with the airport business environment (market turbulence, competitive intensity, market growth and airport constraints) were not found to have a significant moderating effect on the relationship between route development activity and performance. However, two factors were found to have a significant direct effect on performance; market growth has a significant positive effect while airport constraints have a significant negative effect.

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Ground Delay Programs (GDP) are sometimes cancelled before their initial planned duration and for this reason aircraft are delayed when it is no longer needed. Recovering this delay usually leads to extra fuel consumption, since the aircraft will typically depart after having absorbed on ground their assigned delay and, therefore, they will need to cruise at more fuel consuming speeds. Past research has proposed speed reduction strategy aiming at splitting the GDP-assigned delay between ground and airborne delay, while using the same fuel as in nominal conditions. Being airborne earlier, an aircraft can speed up to nominal cruise speed and recover part of the GDP delay without incurring extra fuel consumption if the GDP is cancelled earlier than planned. In this paper, all GDP initiatives that occurred in San Francisco International Airport during 2006 are studied and characterised by a K-means algorithm into three different clusters. The centroids for these three clusters have been used to simulate three different GDPs at the airport by using a realistic set of inbound traffic and the Future Air Traffic Management Concepts Evaluation Tool (FACET). The amount of delay that can be recovered using this cruise speed reduction technique, as a function of the GDP cancellation time, has been computed and compared with the delay recovered with the current concept of operations. Simulations have been conducted in calm wind situation and without considering a radius of exemption. Results indicate that when aircraft depart early and fly at the slower speed they can recover additional delays, compared to current operations where all delays are absorbed prior to take-off, in the event the GDP cancels early. There is a variability of extra delay recovered, being more significant, in relative terms, for those GDPs with a relatively low amount of demand exceeding the airport capacity.

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At a time when the traditional major airlines have struggled to remain viable, the low-cost carriers have become the major success story of the European airline industry. This paper looks behind the headlines to show that although low-cost airlines have achieved much, they too have potential weaknesses and face a number of challenges in the years ahead. The secondary and regional airports that have benefited from low-cost carrier expansion are shown to be vulnerable to future changes in airline economics, government policy and patterns of air service. An analysis of routes from London demonstrates that the low-cost airlines have been more successful in some markets than others. To attractive and historically under-served leisure destinations in Southern Europe they have stimulated dramatic growth and achieved a dominant position. To major hub cities however they typically remain marginal players and to secondary points in Northern Europe their traffic has been largely diverted from existing operators. There is also evidence that the UK market is becoming saturated and new low-cost services are poaching traffic from other low-cost routes. Passenger compensation legislation and possible environmental taxes will hit the low-cost airline industry disproportionately hard. The high elasticities of demand to price in certain markets that these airlines have exploited will operate in reverse. One of the major elements of the low-cost business model involves the use of smaller uncongested airports. These offer faster turn-arounds and lower airport charges. In many cases, local and regional government has been willing to subsidise expansion of air services to assist with economic development or tourism objectives. However, recent court cases against Ryanair now threaten these financial arrangements. The paper also examines the catchment areas for airports with low-cost service. It is shown that as well as stimulating local demand, much traffic is captured from larger markets nearby through the differential in fare levels. This has implications for surface transport, as access to these regional airports often involves long journeys by private car. Consideration is then given to the feasibility of low-cost airlines expanding into the long-haul market or to regional operations with small aircraft. Many of the cost advantages are more muted on intercontinental services.

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Online artwork which streams web-cam images live from the Internet and re-mixes them into disjointed narrative sequences, thereby producing cinema as a 'found object' made entirely of live material streamed from the internet. ‘Short Films about Flying’ is an online film which explores how a cinematic work can be generated using live material from the internet. The work is driven by software that takes surveillance video from a live camera feed at Logan Airport, Boston, and combines this with randomly grabbed audio from the web and texts taken from websites, chat rooms, message boards etc. This results in an endless open edition of unique cinematic works in real-time. By combining the language of cinema with global real-time data technologies, this work is one of the first new media artworks to re-imagine the internet in a different sensory form as a cinematic space. ‘Short Films about Flying’ was developed over the course of a year in collaboration with Jon Thomson (Slade) to explore how the concept of the found object can be re-conceptualised as the found data stream. It has informed other research by Craighead and Thomson, such as the web project http://www.templatecinema.com, and began an examination into relationships between montage and live virtual data –an early example of which would be ‘Flat Earth’, an animated work developed for Channel 4 in 2007, with the production company Animate. This piece has been cited in discussions on new media art, as a significant example of artworks using a database as their determining structure. It was acquired for the Arts Council Collection and has continuously toured significant international venues over the last 4 years. Citations include:’ Time and Technology’ by Charlie Gere (2006); 'The Wrong Categories' by Kris Cohen (2006); 'Networked Art - Practices and Positions' edited by Tom Corby (Routledge 2005) and Grayson Perry in The Times (9.8.06).

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Christoph Franz of Lufthansa recently identified Ryanair, easyJet, Air Berlin and Emirates as the company’s main competitors – gone are the days when it could benchmark itself against BA or Air France-KLM! This paper probes behind the headlines to assess the extent to which different airlines are in competition, using evidence from the UK and mainland European markets. The issue of route versus network competition is addressed. Many regulators have put an emphasis on the former whereas the latter, although less obvious, can be more relevant. For example, BA and American will cease to compete between London and Dallas Fort Worth if their alliance obtains anti-trust immunity but 80% of the passengers on this route are connecting at one or both ends and hence arguably belong to different markets (e.g. London-San Francisco, Zurich-Dallas, Edinburgh-New Orleans) which may be highly contested. The remaining 20% of local traffic is actually insufficient to support a single point to point service in its own right. Estimates are made of the seat capacity major airlines are offering to the local market as distinct from feeding other routes. On a sector such as Manchester–Amsterdam, 60% of KLM’s passengers are transferring at Schiphol as against only 1% of bmibaby’s. Thus although KLM operates 5 flights and 630 seats per day against bmibaby’s 2 flights and 298 seats, in the point to point market bmibaby offers more seats than KLM. The growth of the Low Cost Carriers (LCCs) means that competition increasingly needs to be viewed on city pair markets (e.g. London-Rome) rather than airport pair markets (e.g. Heathrow-Fiumicino). As the stronger LCCs drive out weaker rivals and mainline carriers retrench to their major hubs, some markets now have fewer direct options than existed prior to the low cost boom. Timings and frequencies are considered, in particular the extent to which services are a true alternative especially for business travellers. LCCs typically offer lower frequencies and more unsociable timings (e.g. late evening arrivals at remote airports) as they are more focused on providing the cheapest service rather than the most convenient schedule. Interesting findings on ‘monopoly’ services are presented (including alliances) - certain airlines have many more of these than others. Lufthansa has a significant number of sectors to itself whereas at the other extreme British Airways has direct competition on almost every route in its network. Ryanair and flybe have a higher proportion of monopoly routes than easyJet or Air Berlin. In the domestic US market it has become apparent since deregulation that better financial returns can come from dominating a large number of smaller markets rather than being heavily exposed in the major markets - which are hotly fought over. Regional niches that appear too thin for Ryanair to serve (with its all 189 seat 737-800 fleet) are identified. Fare comparisons in contrasting markets provide some insights to marketing and pricing strategies. Data sources used include OAG (schedules and capacity), AEA (traditional European airlines traffic by region), the UK CAA (airport, airline and route traffic plus survey information of passenger types) and ICAO (international route traffic and capacity by carrier). It is concluded that airlines often have different competitors depending on the context but in surprisingly many cases there are actually few or no direct substitutes. The competitive process set in train by deregulation of European air services in the 1990s is leading back to one of natural monopolies and oblique alternatives. It is the names of the main participants that have changed however!

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Contemporary cities are frequently surrounded by transitional landscapes: ambiguous lands, non-places on the urban edge, commonly experienced under the condition of speed. Although variously shaped by processes of urbanisation, logistics of road engineering, safety and ownership, and local people's lives, for travellers such landscapes are usually perceived in a state of disappearance. This condition presents a major challenge for the traditional methods used in architecture and urban design. For designers interested in the organisation and design of such mobility routes for the engagement of the traveller, a method of scripting based on notation timelines would provide a helpful supplement to traditional master plans. This paper explores the development of such a method and its roots in time-based arts, such as dance, music and film, as well as in the recent history of architecture and urban design. It does so through the presentation of an experimental study based on a real route, the train journey from London to Stansted airport.

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The paper reviews the study and use of urban consolidation centres (UCCs) which are a freight transport initiative intended to reduce goods vehicle traffic, vehicle-related greenhouse gas emissions and local air pollution. An international literature review has identified 114 UCC schemes in 17 countries (12 in the European Union (EU) and 5 outside the EU) that have been the subject of either a feasibility study, trial or a fully operational scheme in the last 40 years. The period from 2006 to 2010 has been the most active 5-year period in terms of UCC study, trial and scheme generation since the first UCC study was carried out in the early 1970s. Five countries account for the majority of all the 114 UCC schemes identified: France, Germany, Italy, the Netherlands and the UK. The vast majority of UCCs serve either all or part of an urban area. Examples of UCCs serving a single property (such as an airport or shopping centre) and construction sites have also been identified. Key organizational, operational, and financial issues that are critical to the success of UCCs are discussed. The traffic and environmental impacts of UCC trials and fully operational schemes are also reviewed.

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In recent years, airlines have been servicing a greater variety, and increasing numbers, of disabled persons and persons with reduced mobility (PRMs), particularly associated with ageing, obesity and medical needs. With the quantity of PRMs likely to increase in the future, there will be a growing impact on the airlines' associated actual and opportunity costs, about which there is minimal literature and data. Therefore the aim of this paper is to identify standard functional key factors (FKFs) with which airlines could audit their PRMs costs, and which could be used by other interested bodies, such as governments, when considering relevant aviation policy. These FKFs are related to nine areas, namely PRMs’ transfers; mobility aids; aircraft delays/diversions costs; staff training costs; staff health, safety and welfare; aircraft fixtures and equipment costs; airport costs; transaction costs; and opportunity costs. Further research is needed to obtain the data for these FKFs.