Title
Alternate risk measures for emergency medical service system design
Abstract
The stochastic nature of emergency service requests and the unavailability of emergency vehicles when requested to serve demands are critical issues in constructing valid models representing real life emergency medical service (EMS) systems. We consider an EMS system design problem with stochastic demand and locate the emergency response facilities and vehicles in order to ensure target levels of coverage, which are quantified using risk measures on random unmet demand. The target service levels for each demand site and also for the entire service area are specified. In order to increase the possibility of representing a wider range of risk preferences we develop two types of stochastic optimization models involving alternate risk measures. The first type of the model includes integrated chance constraints (ICCs ), whereas the second type incorporates ICCs  and a stochastic dominance constraint. We develop solution methods for the proposed single-stage stochastic optimization problems and present extensive numerical results demonstrating their computational effectiveness.
Year
DOI
Venue
2010
10.1007/s10479-010-0787-x
Annals OR
Keywords
Field
DocType
stochastic programming · random demand · risk constraints · integrated chance constraints · stochastic dominance · emergency system · facility location · ambulance allocation · equity,construct validity,stochastic dominance,service level,stochastic programming,facility location,stochastic optimization,system design
Mathematical optimization,Stochastic optimization,Service level,Service system,Stochastic dominance,Systems design,Facility location problem,Unavailability,Stochastic programming,Mathematics
Journal
Volume
Issue
ISSN
181
1
1572-9338
Citations 
PageRank 
References 
13
0.95
13
Authors
1
Name
Order
Citations
PageRank
Nilay Noyan118413.93