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| When making changes it is essential to model the operation as closely as possible using current productivity levels. The resources, in miles and hours, may not be identical to those currently experienced due to computer optimisation of routes. By comparing resources in the new model with the base model then the likely percentage change can be calculated and applied to the actual resources currently used. |
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| A typical method of analysis would be as follows |
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| Create a base case to measure all changes against |
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| Obtain past routing information |
| Location of calls on a route |
| Access restrictions |
| Delivery window |
| Delivery day |
| Type and size of vehicle used |
| Vehicle start location |
| Three tachographs |
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| Enter detail into DPS Logix and calibrate to current productivity |
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| Make changes to the operation and establish new resource levels |
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| These changes may involve |
| Adding or removing a customer |
| Adding or removing a depot/branch |
| Increasing or decreasing the delivery window |
| Changing the delivery frequency |
| Increasing or decreasing the quantity delivered |
| Collecting from suppliers |
| Tramping |
| Changes to trunking between depots/branches |
| Investigation of multi modal delivery options |
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