The Dynamic Dial-a-Ride Problem with Time Windows in a Competitive Multi-Company Environment

Door-to-door transportation for elderly and disabled people is for many governments an important instrument to increase the mobility of this group of people. Many issues arise in the implementation of such a system, which is often modeled as the Dynamic Dial-a-Ride System with Time Windows (DDARPTW). One of those issues is that taxi companies...

A Solution Method for Vehicle Routing Problems with Time-Dependent Travel Times

The goal of this thesis is developing an efficient method that produces good quality solutions to real-life Vehicle Routing Problems with time-dependent travel times. The Time-Dependent Vehicle Routing Problem (TDVRP) is one of the most challenging combinatorial optimisation problems and belongs to the category of NP-hard problems. Therefore,...