We examine a situation where a manufacturer operates in a two-mode production environment. The first mode could involve overseas vendors and manufacturing facilities. If additional units are later required, the company must use its second mode - more expensive last-minute domestic vendors and...

Objective: To develop a discrete event simulation of ED patient flow for the purpose of forecasting near-future operating conditions, and to validate the forecasts using several measures of ED crowding. Methods: We developed a discrete event simulation of patient flow using evidence from the...