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Delivery Safety Time (DST)

Delivery Safety Time is the maximum arrival delay of an order accepted without impacting the production line. DST is mainly linked to a transportation route and a period of time. All parts delivered in the same truck have generally the same DST.

To define a DST, you need to take in account the following points:

  • DST may be increased for specific parts if they have, for example, to be inspected by people available during a specific period of time;
  • DST has a direct impact in your in-house inventory: using STT is sometimes more interresting if you do not have a lot of space;
  • using a DST combined with a STT for the same transportation route is possible.

Transportation Safety Time Transportation Safety Time (TST) has to be known to insure a good sizing of the VRO loop.

Safety Transit Time (STT) Safety Transit Time impact the transportation route or/and its transit time.

TST calculation The best way to calculate a TST is to analyse the history of transportation arrival time.

Learn more...

Optimizing TST of a 3740 km milkrun A real example showing how you can optimize the TST and its cost.

TST : Think globaly You may not need to secure your transportation if you are the only one to do it!

Eliminating TST based on receiving hours An analysis of truck arrivals and receiving schedule may help to optimize your TST.

Using TST for weather events A classical example used by a lot of companies during winter.

Eliminating TST based on production hours An analysis of truck arrivals and consumption schedule may help to optimize your TST.

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