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Performance reportLFV monitors the punctuality of Swedish air travel monthlythrough the Delay Analysis Report at Swedish Airports(DARSA) system, which records delays at Stockholm-ArlandaAirport. Due to the airport’s function as a central hub fordomestic traffic, these statistics can − in all essential respects− be regarded as representative of Swedish air travel. Meanwhileother airports have extremely few delays. Statistics indicatethat between 2006 and 2007, delays at Stockholm-Arlandaincreased by about 2.3 percentage points. The single mostcommon reason for shortcomings in punctuality is normallythe influence of weather, a factor that causes variations in thereporting from year to year.Most shortcomings in punctuality for departing internationalpassengers are attributable to aircraft arriving late fromabroad, conditions where aircraft are kept in Sweden as a resultof traffic congestion in European airspace or a lack of landingopportunities. Swedish domestic traffic works comparativelywell, with few serious delays.The Air Navigation Services normally cause few delays.Those that nevertheless occur can mainly be attributed to staffingproblems and technical faults in the system. Eurocontrol’sstatistics indicate that in an international comparison, Swedenhas few delays.During the first half of 2007, however, staff shortages arosein air traffic control, among other places at Stockholm-ArlandaAirport, due to abnormally many absences due to illness andleave, which increased delays during this period and resulted inunusually many cancelled flights. This staffing shortage unfortunatelycoincided with salary negotiations for air traffic controllers.Statistics show that the number of cancelled flightsincreased by a full 28 per cent between 2006 and 2007. It canbe noted that these cancelled flights coincided closely in timewith the period when staffing shortages occurred among airtraffic controllers at Stockholm-Arlanda. (It should be notedthat cancelled flights are not reported in LFV’s delay statistics.)LFV participates in international efforts to solve the congestionproblem in Central Europe. Meanwhile LFV airportsmake continuous investments aimed at improving their passengerand aircraft flows.Delays are reported according to the 99 delay codes of theInternational Air Transport Association (IATA). Of these, onlyabout six are related to airports and two are related to air trafficcontrol systems. This provides an indication of the numberof reasons for delays that may be connected to other circumstancesand organisations.The most common cause of delays at LFV’s large airports istechnical problems. Despite very thorough and well-plannedmaintenance and reserve capacity in systems, such problemsnevertheless sometimes arise. One key facility of great importanceto the airport is the one that handles sorting and securityscreening of cargo hold baggage. The external electricity supplyis also of vital importance to the smooth functioning of anairport.To combat delays, Stockholm-Arlanda Airport deliberatelymaintains an infrastructure with built-in margins that allowthe airport to handle constantly varying aircraft sizes duringpeak traffic. In addition, Stockholm-Arlanda Airport uses avery efficient but resource-intensive snow removal methodologyin order to minimise delays during snow removal.Overall, because of these and numerous other measures,from a statistical perspective Stockholm-Arlanda Airport doesnot cause delays but instead helps to reduce delays caused elsewherein the air travel system. Put simply, aggregate delay timefor arriving passengers during 2007 was larger than aggregatedelay time for those departing from the airport during thesame year.Data from the Association of European Airlines (AEA)show that Stockholm-Arlanda Airport is among the foremostairports in Europe in terms of punctuality.A good environmentLFV shall help achieve the subsidiary objectives of nationalenvironmental policy. It shall take steps to ensure increasedtravel by public transport to and from Stockholm-ArlandaAirport.Performance report requirementsLFV shall report:- how much it has reduced its atmospheric emissions of fossilcarbon dioxide from its own operations,- the number of people exposed to aviation noise exceedingthe threshold limit values for indoor noise approved by Parliamentand what steps it has taken to reduce the noise load,- how it has worked to reduce the adverse effects of airportoperations on run-off water recipients,- its progress in phasing out chemicals found on the SwedishChemicals Inspectorate’s PRIO list that are used in LFVoperations- the percentage of public transport riders at LFV’s airports aswell as its efforts to increase the percentage of public transportriders to and from LFV airports, as well as other measuresto reduce the environmental impact of ground transportservices.Passengers3,000,0002,500,0002,000,0001,500,0001,000,000500,000Stockholm-Arlanda AirportPunctuality, domestic traffic, 2007Passengers7,000,0006,000,0005,000,0004,000,0003,000,0002,000,0001,000,000Stockholm-Arlanda AirportPunctuality, international traffic, 20070DepartingpassengersArrivingpassengers0DepartingpassengersArrivingpassengersTotal number of passengersDelay of 16-30 min.Delay of 31-60 min.Delay > 60 min.Total number of passengersDelay of 16-30 min.Delay of 31-60 min.Delay > 60 min.46 > LFV 2007 < Performance report