Abstract:Airport curbside, where travelers and their baggage enter and exit the terminal, and the designated parking area are important components in airport land-side facilities. Passengers expect safe and efficient roadway operations even as volumes increase, but the design and capacity of the curbside are often constrained by the terminal building and the proximity of on-airport land-side infrastructure. The operating characteristics of airport terminal curbside differ significantly from those of most other roadways due to several reasons such as vehicle dwell time, maneuver vehicles to and from adjacent lane, variation in demand etc. The capacity of a curbside roadway is defined both by the number of vehicles that can be accommodated while stopping to pick up or drop off passengers and the number that can be accommodated while traveling past the curbside in the through lanes. Therefore a study of operations at curbside and parking area is important to identify issues related to existing and future demand levels.The main focus of the paper is on the evaluation of vehicle operations and passenger behavior at the BIA terminal access roadway, weaving segment, arrival and departure curbside roadways and terminal car park. Analysis of vehicular traffic, travel mode choices, and curbside roadway vehicle queues, vehicle dwelling times, passenger occupancy time at curbs and passenger processing and walking times will provide useful information for developing plans for operational improvements as well as for future expansions. Using the available data, the demand and the capacity at these facilities are evaluated to estimate the existing level of service. In addition, measures were identified to improve the operational efficiency of these facilities and design improvements are proposed to ensure good operational efficiency for the forecast future demand.
Flight safety is one of the key priorities in the air transport industry. Considering historical aircraft accidents, majority of the aircraft accident occurred at airports. Among the airport related aircraft accidents, a higher percentage of accidents have taken place during the landing operations. Runway excursions such as overruns and veer-offs are the typical runway related aircraft accidents that frequently occur during aircraft landings. Thus, this paper focuses on aircraft excursion risk at the Bandaranaike International Airport (BIA) where the majority of the international flight movements are currently taking place in Sri Lanka. This paper considers different operational conditions that probably exist at BIA, and accordingly associated excursion risks are estimated. Aircraft airfield design elements such as the runway length, safety areas and the corresponding critical aircraft for the BIA are used for the estimation. Potential overrun and veer-off risks at aircraft landings are mainly focused. The methodology follows a quantitative approach which consists of event probability, location probability and consequent severity estimation steps. Among the potential weather factors, the conditions at which tailwind over 12 knots (6.17 m/s), reduced visibility and rain are the worst contributory factors for the greatest overrun risk. The paper highlights that the airfield design elements can compensate excursion risks that generate due to various spikes of the operational conditions.
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