Optimal schedule of elective surgery operations subject to disruptions by emergencies

Scheduling Inspection Operations subject to a Fixed Production Schedule

This paper deals with an optimization problem in which a set of inspection operations have to be processed so that a fixed production schedule is as reliable as possible. The problem is formalized as a parallel machine scheduling problem whose objective is to minimize a regular step total cost function. Mixed Integer Linear Programming models are described for the cases with and without release...

Optimal Slack Time for Schedule-Based Transit Operations

In order to improve service reliability, many transit agencies add a significant amount of slack in the schedule. However, too much slack in the schedule reduces service frequency. We study the problem of determining the optimal slack that minimizes the passengers’ expected waiting times under schedule-based control. By associating with a D/G/c queue model, we show that the system is stable if ...

Estimating Wind Forecast Errors and Quantifying Its Impact on System Operations Subject to Optimal Dispatch by

Estimating Wind Forecast Errors and Quantifying Its Impact on System Operations Subject to Optimal Dispatch Xiaoguang Li Master of Applied Science Graduate Department of Electrical and Computer Engineering University of Toronto 2011 Wind power is being added to the supply mix of numerous jurisdictions, and an increasing level of uncertainties will be the new reality for many system operators. A...

Applying Local Rescheduling in response to schedule disruptions

In realistic scenarios of disruption management the high number of potential options makes the provision of decision support – on how to get back on track – complex. It is thus desirable to reduce the size of the regarded problems by applying methods of partial rescheduling. As existing approaches (such as Affected Operations Rescheduling or Matchup Scheduling) mainly focus on production-specif...

Obstetric Accidents, Emergencies, and Operations