Familiarity Constraint

In real operation, a company may allocate the customers to their vehicle fleet based on the familiarity relationship between each vehicle with the customers. The vehicle will prioritize delivering to the customers that have familiarity relationships with them first. After delivering to the customers that have familiarity relationships with them, the vehicles will continue delivering to other non-familiar customers if they still have enough working time and capacity
This routing plan is defined as Master Delivery Plan (Abbreviated as MDP)
To optimize the routes with the above constraint, in Abivin vRoute, we introduce the Familiarity configuration
To use this configuration, please follow the steps below:

Compulsory Configuration

Navigate to Organizations > Organization List tab
Click Edit icon of the Branch
On the Update Organization form, navigate to the More Configurations > Algorithm sub-tab and tick the Use Familiarity checkbox to enable the Familiarity Constraint routing algorithm
Click Save to confirm the change

There are two methods to assign MDP codes to Customers: Web form and Excel template

Navigate to Partners > Customers tab
Click Edit icon of the desired customers
On the Update Customer form, navigate to Sales Area sub-tab. Insert a unique MDP code for the Customer. You should copy this MDP code to use later on
Click Save to confirm the change

MDP codes can only consist of letters, numbers and dash symbols. For example: MDP_code_01 is valid, MDP@code!01 is invalid
The MDP codes of Customers must be unique. No two Customers can have the same MDP code
One customer can only have one MDP code

You can assign the MDP codes of multiple customers to a single vehicle, or assign the MDP code of a single customer to multiple vehicles
There are two methods to assign MDP codes to vehicles: Web form and Excel template

Navigate to Transportation > Vehicle List tab
Click Edit icon of the desired vehicle
On the Update Vehicle form, scroll down until you see the MDP field. Input the MDP code of the Customer into this field. If a vehicle is assigned multiple MDP codes, separate two adjacent MDP codes by a comma, for example: MDP_code_1,MDP_code_2
Click Save to confirm the change. Repeat these steps for other vehicles

Alternatively, you can directly assign MDP codes to vehicles right on the Vehicle List screen
First, you need to display the MDP column. To do that, click the Columns button on the top right corner of the vehicle list then select this column from the drop-down list

After the MDP column is displayed, click on the MDP field of each vehicle. Input the MDP code into the pop-out form. If a vehicle is assigned multiple MDP codes, separate two adjacent MDP codes by a comma, for example: MDP_code_1,MDP_code_2. After that, click the icon on the form to confirm assigning the MDP code(s) to that vehicle

Input the MDP code to the MDP cell of each vehicle
If a vehicle is assigned multiple MDP codes, separate two adjacent MDP codes by a comma and a space. For example: MDP_code_1, MDP_code_2

After setting all the above, you can perform Route Plan Optimization as usual
The optimization process will return the most optimized routes, satisfying the MDP configuration set up earlier
In the scenario a customer has a familiarity relationship with a vehicle, but that vehicle doesn't have enough capacity and/or working time to deliver orders of that customer, the system will automatically assign these orders to other vehicles that have enough capacity and working time, regardless of whether or not those vehicles have familiarity relationship with this customer (As described at the beginning of this article)
To see whether a customer has the familiarity relationship with the vehicle that delivers to that customer, click on the block of that customer on the vehicle timeline. On the panel that appears right side of the screen, see the value of the Familiarity field:
The value is Yes: The vehicle has a familiarity relationship with the customer

The value is No: The vehicle doesn't have a familiarity relationship with the customer

The Familiarity ratio of a vehicle is calculated by the following formula
The number of customers who have familiar relationships with the selected vehicle/The total number of customers assigned to the selected vehicle
For example: A vehicle delivers to four customers, three of whom have familiar relationships with that vehicle
The Familiarity ratio of that vehicle will be 3/4 x 100% = 75%

The Familiarity ratio of a whole Route Plan is calculated by the following formula
The number of customers who have familiar relationships with the vehicles utilized in that Route Plan/The total quantity of customers whose orders are successfully optimized in that Route Plan
For example: The Route Plan consists of two vehicles delivering to five customers, among whom three customers have familiarity relationships with one vehicle
The Familiarity ratio of that routing plan will be 3/5 x 100% = 60%