%0 Journal Article %T The impact of long-term travel demand changes on mixed decision problems of mass transit lines construction and vehicles’ depots location %A Sawicki, Piotr %A Fierek, Szymon %J Czasopismo Techniczne %V 2018 %R 10.4467/2353737XCT.18.090.8695 %N Volume 6 Year 2018 (115) %P 103-112 %K mass transit lines construction, vehicles’ depots location, travel demand, exact optimisation, traffic modelling %@ 0011-4561 %D 2018 %U https://ejournals.eu/czasopismo/czasopismo-techniczne/artykul/the-impact-of-long-term-travel-demand-changes-on-mixed-decision-problems-of-mass-transit-lines-construction-and-vehicles-depots-location %X The paper is concentrated on solving a mixed decision problem of mass transit line construction and vehicles’ depots location (MTLC&VDL). The authors have iteratively solved this problem as a function of scenariobased, long-term travel demand changes, and finally have analysed the generated results. As a product of the computations, it has been proved that the solution of the mixed MTLC&VDL decision problem depends on changes in travel demand, both in terms of the line construction and the location of the depot. 5 and 10% increase of travel demand leads to changes in the optimal mass transit line’s configuration, while the change of the optimal depot location takes place with 10% of the travel demand change. The results have implied a conclusion that to make strategic decisions on transport systems and solving mixed decision problems, forecasting travel demand changes (its volume and structure) over the long-term horizon has to be performed.