Route planning is the process of determining the optimal path and stop sequence for vehicles to complete their deliveries efficiently. At its most powerful, it is an AI-driven algorithm computing the best multi-stop sequence, vehicle load assignment, and road route simultaneously — factoring in delivery time windows, vehicle capacity, driver working hours, real-time traffic, road type restrictions by vehicle class, and historical delivery times. In multi-drop distribution, route optimisation can reduce total distance driven per route by 15 to 25 percent compared to manually planned routes — directly cutting fuel costs, driver time, and increasing delivery capacity per vehicle per day.