Traditional vehicle routing problems implicitly assume only one crew operates a vehicle for the entirety of its journey. However, this assumption is violated in many applications arising in humanitarian and military logistics. This paper considers a Joint Vehicle and Crew Routing and Scheduling Problem, in which crews are able to interchange vehicles, resulting in space and time interdependenci...

STUDY OBJECTIVE To register and analyze data from all crew injuries reported to the medical center of a cruise ship with a median crew of 630 during a three-year period and to determine high risk areas, equipment and behavior. METHODS All crew injuries reported to the medical center aboard were registered on a standardized form at first visit. An injury was classified at follow-up as 'lost ti...

Abstract  According to the World Health Organization in 2007, peoplechr('39')s vulnerability to severe, rapid and new threats to their health security must be reduced. Because most people today feel insecure about worries about their daily lives, it is essential to create a new environment in which health security becomes a basic concern for all. Meanwhile, the marine crew needs special attent...

This paper studies the modeling and algorithms of crew roster problem with given cycle on highspeed railway lines. Two feasible compilation strategies for work out the crew rostering plan are discussed, and then an integrated compilation method is proposed in this paper to obtain a plan with relatively higher regularity in execution and lower crew members arranged. The process of plan making is...

In this communication a bi-criterion approach for the nominal Airlines Crew Rostering Problem is developed. The nominal 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 fro...

The creation of a flight schedule and the associated crew planning are clearly among most complicated tasks in terms traffic preparation. Even with relatively small number pilots aircraft, numerous specific constraints arising from real operations must be included calculation, thus increasing complexity process. However, even precision-planned operation, non-standard situations often occur, whi...