Wesley A. Olson

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This study examined the effects of conflict type, time pressure, and display design on operators' ability to make informed decisions about proposed machine goals and actions in a management-by-consent context. A group of 30 B757 pilots were asked to fly eight descent scenarios while responding to a series of air traffic control clearances. Each scenario(More)
The Traffic Alert and Collision Avoidance System (TCAS) is mandated worldwide on large commercial aircraft and has been shown to substantially reduce the risk of midair collision. However, the logic used to select pilot advisories is difficult to modify and does not easily support new surveillance inputs. The next generation system, called Airborne(More)
Ongoing monitoring of safety critical systems is an important means of ensuring that system performance meets requirements and facilitating proactive identification and resolution of potential problems. The Federal Aviation Administration (FAA) recently implemented one such effort, the TCAS Operational Performance Assessment (TOPA) program. This program(More)
Cockpit automation has delivered many promised benefits, such as improved system safety and efficiency; however, at the same time it has imposed system costs that are often manifest in the forms of mode confusion, errors of omission, and automation surprises. An understanding of the nature of these costs as well as associated influencing factors is(More)
The Traffic Alert and Collision Avoidance System (TCAS II), a critical aviation safety system, uses onboard surveillance to automatically detect potential airborne threats and issue vertical maneuvering guidance, or Resolution Advisories (RAs), to help pilots resolve conflicts. These RAs and relevant encounter details are recorded by the Federal Aviation(More)
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