Aimulation approach to analysis, desgin and operation of parallel aisle warhouses

The research on warehousing systems gained interest since the 1970’s.One of the modern global economy depends on the efficient flow of products .Products can be stored temporarily in warehouses and retrieving products from storage can be fill customer orders. However warehousing generally requires a considerable amount of product handling, which is time consuming . One way to decrease handling time is an entirely new design of the warehouse. But often it is also possible to decrease handling time by less radical methods such as changing the operational procedures.