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Its not until the flow phase at a storage that we can calculate the off allocation impact on the desired release down each outlet of the storage. Due to this, we run an extra 'pre-flow phase' calculation which informs the storage of any extra releases that will need to be made to satisfy the off allocation requests that have to be met from for downstream users. For more information...
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At each node and link we calculate a 'flow to order' ratio, which is called a constraint factor. This factor is used to diagnose shortfalls in the system. These shortfalls are used by some nodes to redistribute future orders - if possible - and to potentially share shortfalls. For more information .....