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Weight restriction by OD pair or route


We have a requirement that the weight loaded on a rail car going to a specific location (plant/shipping point) cannot exceed certain weight (e.g. 160,000LB) due to the rail track restriction. The rail car resource however is a regular one whose capacity is the usual one (e.g. 185,000 LB) therefore resource master cannot be updated nor can we use an incompatibility given the possible types of incompatibility provided. Is there a way we can ensure rail cars exceeding this weight are not assigned to an RCU (or a freight order) if they are destined from a certain location to a certain location? We are using default routes so if it's possible to do at a route level that will work too as we can configure unique route for this case.

Best Regards


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  • Posted on Oct 03, 2015 at 07:27 AM


    Are you working on TM 9.1 version since there are couple of useful functionalities on rail scenarios applicable from this version

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    • Hi,

      In the project which I was working we had 2 alternatives:

      a) In the FO type definition, we assign a planning profile. And in this planning profile, we can use a incompatibility setting. A rail car unit is also a transportation unit technically. So in this

      incompatibility setting, check if you can use incompatibility type definition of type 'RCU unit - * '. Incompatibility area can be 01 ( complete VSR). This way, when a RCU is assigned to FO,

      incompatibility setting will be checked.

      b) If we are using optimizer for planning, we can also use the BADI to influence the inputs to optimizer.

      The BADI is /SCMTMS/PLN_PRE_PROC and enhancement spot is /SCMTMS/PLN_OPT .This BADI can be used to restrict the inputs i.e RCU passed to optimizer planning.

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