Phase 3. Add a New Vehicle Type
In the previous phase we decreased the number of shipments
within the simulation period, increased the minimum vehicle load ratio
for direct shipments, and compared the received results. In this phase
we will add a new vehicle type to see if it the transportation costs
and the overall number of routes can be decreased.
Let us add a new vehicle type to the supply chain.
Create a new vehicle
Simply adding a new vehicle type to the scenario is not enough for the
experiment to use it. The new vehicle type must be specified in:
- Navigate to the Vehicle Types table. The table
currently contains only the vehicle that we have been using all this
- Click the Add button in the toolbar of the
table editor. A table record with default vehicle
type will be created.
- Compare the two vehicle types. The default vehicle
has larger capacity. We will leave the default
parameters of the vehicle as they are.
- the Paths table
- the Vehicle type parameter of the Capacitated
Let us start with the Paths table. We will create a new record
and define the required parameters for the paths a new vehicle will be
Define paths for the new vehicle
- Navigate to the Paths
table. The table currently contains the paths that are used by the
first vehicle type.
- Create a new record by clicking Add.
Here we will define the paths for the second vehicle type.
- Leave the default (All
locations) in the From
and To column cells. This
will allow our vehicle to travel from the Gabrovo
DC to the first customer, between the customers, and from the last
customer back to the Gabrovo
- Double-click the Fixed
delivery cell in the Cost
Calculation column and select Distance-based
from the drop-down list of available policies.
- Now double-click the cell of the Cost
Calculation Parameters column.
A dialog box will open allowing you to modify the policy parameters.
- Type 0.04
in the Cost field,
which is the cost of transporting
demanded products to a distance of one kilometer.
- Click OK to
close the dialog box.
- Move on and disable the toggle button in the Straight column. This will allow the
vehicle to use actual routes.
- And finally specify the new vehicle type for this path by
double-clicking the cell in the Vehicle
column and selecting Vehicle Type 2
from the drop-down list. The table must look like this eventually:
Now we must specify the new vehicle type in the experiment
Adjust experiment parameters and
run the experiment
- Navigate to the experiment parameters.
- Click the Vehicle Types
drop-down list and select the checkbox next to the Vehicle
- Now deselect the checkbox next to the Vehicle
type. We already have results with this vehicle type.
Besides, optimizing the delivery routes for 2 vehicle types takes more
Run to launch the experiment.
The results will be
available in the Result 4
sub-item of the Capacitated TO experiment
Let us analyze and compare the
and compare the received results
We have completed the third phase, and with the last step of this
phase we have also completed the Capacitated TO tutorial.
- Navigate to the Generated
Paths table and filter the results per
shipment. We can see that the number of routes has decreased.
- Now check the number of direct shipments in the Solution
Type column. We have just 2 direct shipments.
- Add this table to
comparison. Name it Result 4.
- Compare the transportation
costs of Result 3 and Result 4. As you can see, the new set of
routes is less expensive. We have found cost-efficient routes.
- For more details you can
navigate to the Generated Path Segments
tab, which contains details on each segment of every route
2. Adjust Parameters and Compare Results