Dual command travel times and miniload system throughput with turnover-based storage
Byung Chun Park, Robert D. Foley, John A. White, Edward H. Frazelle · IIE Transactions · 2003
We analyze travel times for automated storage/retrieval systems. In particular, we apply our travel time model to turnover-based storage systems and determine the mean and variance of dual command travel times. We present detailed numerical results for selected rack shape factors and ABC inventory profiles. We then investigate the effect of alternative rack configurations on travel time performance measures. We also show how to determine the throughput of miniload systems with turnover-based storage and exponentially distributed pick times.