Queueing Network — Bank Branch Counter
Friday-afternoon branch flow at 96 customers an hour across greeter, teller line, a nine-seat advice area and the business desk — a balanced network where every station already sits inside the 80% target.
Make it your own.
title "Bank branch — Friday afternoon"
target 80%
arrivals Greeter 96/h
station Greeter { servers: 2; service: 45s }
station "Teller line" { servers: 6; service: 4m; cv: 1.15 }
# The advice area seats nine including the two desks — beyond that people
# are asked to come back, which is a loss, not a queue.
station "Advice desk" { servers: 5; service: 24m; capacity: 9 }
station "Business desk" { servers: 4; service: 15m }
route Greeter -> "Teller line" 0.71
route Greeter -> "Advice desk" 0.08
route Greeter -> "Business desk" 0.11
route Greeter -> exit 0.10 # cash machine only
route "Teller line" -> "Advice desk" 0.02
route "Teller line" -> exit 0.98
route "Advice desk" -> exit 1.0
route "Business desk" -> exit 1.0