Queuing Theory

QUANTITATIVE ANALYSIS
FOR DECISION MAKING


QUEUING THEORY

,Outline
• CHARACTERISTICS OF A WAITING-LINE SYSTEM
– Arrival Characteristics
– Waiting-Line Characteristics
– Service Facility Characteristics
– Measuring the Queue’s Performance
– Queuing Costs

• THE VARIETY OF QUEUING MODELS
– Model A: Single-Channel Queuing Model with
Poisson Arrivals and Exponential Service Times
– Model B: Multiple-Channel Queuing Model
– Model C: Constant Service Time Model
– Model D: Limited Population Model
• OTHER QUEUING APPROACHES

, Waiting Line Examples

Situation Arrivals Servers Service Process
Bank Customers Teller Deposit etc.
Doctor’s Patient Doctor Treatment
office
Traffic Cars Light Controlled
intersection passage
Assembly line Parts Workers Assembly
Airport Airplanes Runways Control
landing/take off