We consider a queueing system controlled by decisions based
on partial state information. The motivation for this work
stems from road traffic, in which drivers may, or may not, be
subscribed to a smartphone application for dynamic route
planning.
Our model consists of two queues with independent exponential service times, serving two types of jobs. Arrivals
occur according to a Poisson process; a fraction alpha of the
jobs (type X) is observable and controllable. At all times
the number of X jobs in each queue and their individual positions are known. Upon its arrival a router decides wh