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Surface regularity - Free and Defined Movement

In warehouses the materials handling equipment (MHE) such as forklifts, counterbalance trucks etc, operate in two distinct areas of traffic movement; Free movement and Defined movement.

In free movement areas the MHE can travel randomly in any direction. These areas are typically wide aisle racking installations, factories, retail outlets low-level storage, marshalling zones and food distribution.

In defined movement areas the vehicles use fixed paths typically associated with high-level storage racking with very narrow aisles.

These distinct movement areas require different surface regularity specifications and as such use different survey techniques to define the limiting properties.

Defined movement in very narrow aisle Free movement area
 
Acknowledgement: The Concrete Society
 

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