Flex-Route Transit: Problem Definition, Case Studies and Development over Years in Optimization Literature

Transport regulatory bodies are actively exploring strategies to minimize expenditures while maintaining a high standard of service for their customers. One innovative transportation method gaining prominence is Flex-Route Transit, which integrates impromptu stops into public transportation systems, ensuring personalized pick-up and drop-off services. This research delves into a comprehensive analysis of the problem at hand, examining existing operational examples. Additionally, we serve the foundation for proposing potential avenues for future research.