“…This paper is concerned about the impact of time varying arrival rates and delayed information on the queue length process. Thus, it is mostly related to the work by Armony and Maglaras [3], Guo and Zipkin [9], Hassin [11], Armony et al [4], Guo and Zipkin [10], Jouini et al [20,21], Allon and Bassamboo [1], Allon et al [2], Ibrahim et al [18], Whitt [31], Armony et al [5], Dong et al [6].…”