We model and evaluate an emergency service system in which cross-trained fire-medics respond to both fire calls and medical emergencies. Compared to the traditional system, adding the server flexibility may be beneficial in terms of both cost savings and response time performance. A...

Events that cause disruptions to air company flight schedules transporting passengers and cargo are commonplace in practice, and their operational and financial consequences are often relevant. The aircraft recovery problem (ARP) consists of recovering the flight schedules lost due to such...