Multiobjective modelling in choice of route and vehicle for public city transportation for minimum travel time, low cost and energy consumption

There are more than 1.5 million trips in the Republic of Bulgaria using urban passenger transport per day, with 1 688 230 trips recorded in 2017. On these trips, passengers are often faced with the choice for route and vehicle. This is especially true for multimodal travel. A number of factors influences this choice. On the one hand, it is the result of technical, time, financial and environmental constraints, the quality of the transport service and the socio-economic characteristics of the passenger. On the other hand, the different perspectives of individual travelers who try to satisfy their individual preferences must be considered. In recent times, this has been often linked to the public interest in sustainable development, including sustainable transport. In this paper is shown a multi-criteria optimization for the choice of passenger journeys according to three criteria (minimum travel time, low cost and energy consumption) with options for choosing number (n) types of vehicles. As a result, the options for passenger journey (Pareto optimal decisions) are obtained and therefore are given opportunities to the person who takes decisions (passenger) to choose one of these solutions.