http://hdl.handle.net/1721.1/34282 2013-05-22T00:41:46Z http://hdl.handle.net/1721.1/78844 Trends and Market Forces Shaping Small Community Air Service in the United States Wittman, Michael D.; Swelbar, William S. This report, Trends and Market Forces Shaping Small Community Air Service in the United States, is the first in a series of papers written under the umbrella of the MIT Small Community Air Service White Paper series. The aim of the paper series is to examine and analyze the past, current, and anticipated future trends of small community air service in the United States. The series is intended for a general audience of airline and airport executives, aviation policy makers, the news media, and anyone with an interest in the availability of commercial air service at the nation’s smaller airports. The authors of this paper series hope that these reports will serve to inform the policy debate with relevant and accurate statistical analysis, such that those responsible for deciding the future of small community air service will do so armed with factual basis for their actions. The authors of the MIT Small Community Air Service White Paper series are members of the Massachusetts Institute of Technology’s International Center for Air Transportation, one of the nation’s premier centers for aviation, airline, and airport research. Financial support for study authors has been provided in part by the MIT Airline Industry Consortium, an interdisciplinary group of airlines, airport councils, policy makers, and advocacy groups dedicated to improving the state of the practice of air transportation research in the United States. However, any views or analyses presented in this and all future reports are the sole opinions of the authors and do not reflect the positions of MIT Airline Industry Consortium members or MIT. 2013-05-07T00:00:00Z http://hdl.handle.net/1721.1/74585 Human Factors Studies of an ADS-B Based Traffic Alerting System for General Aviation Silva, Sathya; Cho, HongSeok; Gao, Hang; Kunzi, Fabrice; Hansman, R. John Several recent high profile mid-air collisions highlight the fact that mid-air collisions are a concern for general aviation. Current traffic alerting systems have limited usability in the airport environment where a majority of mid-air collisions occur. A Traffic Situation Awareness with Alerting Application (TSAA) has been developed which uses Automatic Dependent – Surveillance – Broadcast (ADS-B), a Global Positioning System (GPS) based surveillance system, to provide reliable alerts in a condensed environment... 2012-11-07T00:00:00Z http://hdl.handle.net/1721.1/74549 The Impact of Fuel Based Speed Reductions on Controller Conflicts in the National Airspace System Udluft, Heiko; Hansman, R. John Motivated by increasing fuel prices and a higher environmental awareness, a reduction in aircraft cruise speed leads to fuel-burn benefits. However such a change will likely not occur simultaneously fleet wide. Thus, it is likely that in future scenarios the variation of speeds flown in the National Airspace System (NAS) will increase and lead to a higher system complexity. The objective of this study is to investigate the effects of reduced aircraft cruise speed on the NAS. Using the airspace simulation tool FACET a set of scenarios has been simulated to determine how a reduction of cruise speed will impact the number of conflicts that occur in the NAS. 2012-11-01T00:00:00Z http://hdl.handle.net/1721.1/74539 An Approach to Analyze Tradeoffs for Aerospace System Design and Operation O'Neill, Gregory; Hansman, R. John There are important tradeoffs that need to be considered for the design and operation of aerospace systems. In addition to tradeoffs, there may also be multiple stakeholders of interest to the system and each may have different preferences as to the balance amongst the tradeoffs under consideration. A tradeoff hyperspace is created when there are three or more tradeoff dimensions and this increases the challenge associated with resolving the hyperspace in order to determine the best design and operation of a system. The corresponding objectives of this research are to develop a framework to analyze tradeoff hyperspaces and to account for the preferences of multiple stakeholders in this framework. 2012-11-01T00:00:00Z