Optimization model of urban rail transit subsidies based on travel fare
As a crucial national infrastructure,urban rail transit serves as the main artery of the national economy,and its status and role in economic and social development are of utmost significance.Scientific and reasonable pricing and subsidies are essential measures to ensure the healthy development of urban rail transit and enhance the benefits for all stakeholders in the system.First,the multi-party game relationship and interests among passengers,operators,and government were deeply revealed.Starting from the urban rail transit operation system,considering the fairness of subsidies,a subsidy optimization model with the goal of maximizing social welfare was constructed.The impact of fares and passenger travel distance on subsidies was integrated.Based on the characteristics of the subsidy optimization model,the corresponding heuristic solution algorithm was designed.Taking Changsha Metro Line 2 as a case study,the impact of the proposed subsidy scheme based on travel behavior and operation system was analyzed,and the feasibility of the optimization model and algorithm was verified.Besides,taking the fixed subsidy scheme as the comparison object,the results are shown as follows.1)The fare-based subsidy scheme has a greater incentive effect on operators,attracting more passengers,improving operational efficiency,and significantly reducing the amount of subsidy required.2)There is a difference in the concentration of passengers under the two subsidy schemes,with the fare-based subsidy scheme being more balanced and reflecting the fairness of the subsidy more effectively.The subsidy scheme based on fares comprehensively takes into account both passenger travel distance and fare.The distribution of subsidies follows the"increasing with distance"rule,which reflects the fairness of subsidies and facilitates the rational allocation of subsidy resources.The research findings can provide theoretical support and a basis for decision-making in the formulation and implementation of"reasonable subsidies"for public transportation.
urban trafficsocial welfaretravel distancesubsidy coefficientoperating frequency