Transit network timetabling and vehicle assignment for regulating authorities

In the literature on transit planning, network timetabling and vehicle scheduling are usually treated as separate problems. In this paper, we focus on combining important features of these two steps and propose a simultaneous solution approach to redefine timetables with the objective of bringing improvements to both quality of service and vehicle costs incurred. This includes the objectives of quantity and quality of the transfers proposed, evenness of the line headways, fleet size and length of the deadheads. The model proposed for this simultaneous approach is adapted to the problem faced by regulating authorities, encouraging intermodality and taking into account a variety of practical features. We introduce an optimization procedure based on Iterated Local Search and present computational experiments carried out on data from a large existing transit network, showing substantial improvements in both quality of service and level of resources compared to the current practice

Transport analytics in action: a cloud-based decision support system for efficient city bus transportation

Optimising city bus transport operations helps conserve fuel by providing the urban transport service as efficiently as possible. This study develops a Cloud-based Decision Support System (C-DSS) for transport analytics. The C-DSS is based on an intelligent model on location of depots for opening new depots and/or closing a few existing depots and allocation of city-buses to depots. The C-DSS is built on the Cloud Computing architecture with three layers and includes an efficient and simple greedy heuristic algorithm. Using modern information and communications technology tools, the proposed C-DSS minimizes the cost of city bus transport operations and in turn to reduce fuel consumption and CO2 emissions in urban passenger transport. The proposed C-DSS is demonstrated for its workability and evaluated for its performance on 25 large scale pseudo data generated based on the observation from Bangalore Metropolitan Transport Corporation (BMTC) in India

Graphicage d'un réseau de bus par groupes de lignes

La planification d\u27un réseau de bus est un processus séquentiel, donnant aux premières étapes une influence capitale sur la qualité finale du planning. Le graphicage se situe au niveau tactique et regroupe deux étapes décisives: la conception des horaires (à vocation qualité de service) et la création des services véhicules (centrée sur l\u27aspect ressources).Ces deux problèmes de forte complexité ont été largement étudiés dans la littérature. Cependant peu de travaux ont été publiés sur la prise en compte simultanée des deux phases. Nous proposons une modélisation et une approche de résolution heutristique qui intègrent réorganisation des horaires de ligne existants et affectation des véhicules en se basant sur des groupes de lignes