Optimizing Parcel’s Delivery of Czech Post

The aim of my bachelor's thesis is to optimize the parcel's delivery of the Czech post in the surroundings of Kolín and Kutná Hora, which is operated by Depo Kolín 70. This service's speciality is that the parcels are being delivered to individual post offices according to the zip code. The main task is to minimize costs of delivery on these parcels, the next thing is to settle the optimal count of cycles assuming that delivery car has to come back to the Depo and another thing is to consider an opening time of post offices. Discrete models are used to solve this problem, specifically vehicle routing problem with time windows. To solve this model has been used LINGO optimizing software