STUDY OBJECTIVE To describe the medical practice of one physician and two nurses during a 106-day westward cruise from Los Angeles to New York in 2004 with an average of 464 passengers (51% women) and 615 crew (22% women) aboard. METHODS Patient data were registered continuously and reviewed after the voyage. RESULTS There were 4244 recorded patient contacts (=40 per day), 2866 of which dir...

In “Theory and Application of the Equivalent System Mass Metric,” Levri, Vaccari, and Drysdale computed the Equivalent System Mass (ESM) of crew time. ESM is a cost-type metric based on allocated mass that is often used in life support systems. The previous paper suggested that the cost per hour of crew time should be equal to the ESM of the life support system, divided by the number of availab...

As advanced crew support technologies will be available more and more in future military aircraft, it is necessary to have a good understanding of the possibilities in this area, taking into account operational demands, technical possibilities, human factors, evaluation, and validation aspects. A Crew Assistant (CA) is a decision support system for air crew, designed to improve mission effectiv...

Traditional vehicle air conditioning systems condition the entire cabin to a comfortable range of temperature and humidity regardless of the number of passengers in the vehicle. The A/C system is designed to have enough capacity to provide comfort for transient periods when cooling down a soaked car. Similarly for heating, the entire cabin is typically warmed up to achieve comfort. Localized he...

Airline crew rostering is an important part of airline operations and an interesting problem for the application of operations research. The objective is to assign anonymous crew pairings either to personalized rosters or to anonymous bidlines which subsequently will be assigned to individual crew members. Compared to the crew pairing problem, crew rostering has received much less attention in ...

The airline crew scheduling problem is a combinatorial optimization problem and belongs to the class of NPhard problems. An effective method for solving the airline crew scheduling problem can reduce the crew costs and improve crew satisfaction. Because of its complexity, the problem is divided into two subproblems: the crew pairing problem and the crew rostering problem. In this paper, the cre...

Exposures to cabin environmental contaminants were measured on 36 commercial transport aircraft. The objectives were to characterize levels of contaminants and evaluate the relationship between flight factors such as aircraft size, occupancy, ventilation, and flight length, and environmental parameters. Monitoring was conducted at two coach locations for the duration of the flight for VOCs, nit...

The Crew Rostering Problem considers the assignment of the crew staff to a set of pairings covering all the scheduled flights so that operations costs are minimized while its solution must meet hard constraints resulting from the safety regulations of Civil Aviation as well as from the airlines’ internal agreements. Another goal is of the highest interest for airlines: since the overall satisfa...

In this paper, we deal with the crew assignment problem, which is a subproblem of the airline crew scheduling problem. The aim of the crew assignment problem is the optimal allocation of a given set of crew pairings to crew members, in a way that a set of constraints is satis ed. The optimality criterion we employ in this work requires the ight time fair distribution among all crew members. Thi...

Related transport engineering sciences show spectacular progress in automation reviving a discussing of unmanned ships using Artificial Intelligence technologies particularly for combatants. The nautical tasks could be largely automated and the commercial expert systems for automatic navigation including collision and grounding avoidance are on the market. Damage control appears to be another p...