Results 11 to 20 of about 2,585,798 (346)
Train Scheduling with Hybrid Answer Set Programming [PDF]
Theory and Practice of Logic Programming, 2020 We present a solution to real-world train scheduling problems, involving routing, scheduling, and optimization, based on Answer Set Programming (ASP). To this end, we pursue a hybrid approach that extends ASP with difference constraints to account for a ...
D. Abels +5 more
semanticscholar +2 more sources
Train Scheduling on a Unidirectional Path. [PDF]
, 2018 We formulate what might be the simplest train scheduling problem considered in the literature and show it to be NP-hard. We also give a log-factor randomised algorithm for it. In our problem we have a unidirectional train track with equidistant stations, each station initially having at most one train. In addition, there can be at most one train poised
Apoorv Garg, Abhiram G. Ranade
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IET Intelligent Transport Systems, 2021 This paper proposes an analytical delay propagation model for single railway lines based on the max‐plus algebra theory. The scheduling measures taken by dispatchers, including re‐timing and re‐ordering, will be incorporated into our delay propagation ...
Junfeng Ma +4 more
doaj +1 more source
A scheduling and control integration optimization method for regenerative braking energy utilization [PDF]
MATEC Web of Conferences, 2021 The utilization of regenerative braking energy is of great significance to the energy saving of subway. Therefore, this paper proposes an optimization method for scheduling and control integration, which not only adjusts the timetable but also optimizes ...
Yang Shunyao, Sun Xubin
doaj +1 more source
Soccer Training Scheduling Problem
International Journal of Combinatorial Optimization Problems and Informatics, 2023 This article aims to present a new problem of planning of resources and activities related to soccer, which is a variant of the Project Scheduling Problem. Soccer projects are intended to meet the requirements and expectations of time, cost and quality of the processes of the Soccer-related activities.
Alejandro Fuentes-Penna +7 more
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Integrated freight car routing and train scheduling
Central European Journal of Operations Research, 2022 Rail freight transportation is involved with highly complex logistical processes and requires a lot of resources such as locomotives or wagons. Thus, cost-efficient strategies for routing freight cars in a cargo network are of great interest for railway ...
Sarah Frisch +5 more
semanticscholar +1 more source
Journal of Advanced Transportation, 2022 This paper describes an optimization model for an irregular train schedule. The aim is to optimize both the maximum train loading rate and the average deviation of departure intervals under time‐varying passenger transport demand for an urban rail ...
Hai Zhang, S. Ni
semanticscholar +1 more source
Constant delay lattice train schedules
Discrete Applied Mathematics, 2023 The following geometric vehicle scheduling problem has been considered: given continuous curves $f_1, \ldots, f_n : \mathbb{R} \rightarrow \mathbb{R}^2$, find non-negative delays $t_1, \ldots, t_n$ minimizing $\max \{ t_1, \ldots, t_n \}$ such that, for every distinct $i$ {and $j$} and every time $t$, $| f_j (t - t_j) - f_i (t - t_i) | > \ell ...
Jean-Lou De Carufel +4 more
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Applied Sciences, 2022 Nowadays, high-speed railway (HSR) has become one of the main choices for passengers. As the number of passengers increases, their travel demands become diverse and the fluctuation range of passenger travel demands will also increase.
Zeyu Wang +6 more
doaj +1 more source
Urban Rail Transit, 2021 Speed is one of the most influential variables in both energy consumption and train scheduling problems. Increasing speed guarantees punctuality, thereby improving railroad capacity and railway stakeholders’ satisfaction and revenues.
A. R. Jafarian-Moghaddam
semanticscholar +1 more source