And Solution Method to a Simultaneous Route Design and Frequency Setting Problem for a Bus Rapid Transit System in Colombia

Martínez, Fabián; Baldoquín, María Gulnara; Mauttone, Antonio

doi:10.1590/0101-7438.2017.037.02.0403

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…Meanwhile, Peña et al (2016) present a mathematical model adapted to TransMilenio's case to optimize its operation by adjusting frequencies and variations in the scheduled departure times for the different routes. Additionally, a heuristic methodology based on an evolutionary algorithm to simultaneously undertake the design of routes and the assignment of their frequencies is developed by Martínez et al (2017), with a case of theoretical application to various BRT systems in Colombia.…”

Section: State Of the Artmentioning

confidence: 99%

General guidelines for the design of BRT routes in the Public Transport Integrated System of Bogotá

Triviño¹

2021

Datasets

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The objective was to establish general guidelines for the design of the BRT route network in Bogotá's Public Transport Integrated System -SITP -in terms of geographical layouts, stop points, and frequencies. The demand for the morning rush hour in a typical business day before COVID-19 was contemplated.The research methodology had three phases. 1) Establish several sets of preliminary guidelines for route network design in the Bogotá BRT System -TransMilenio -. 2) Development of a methodology -based on a transport model implemented in PTV-Visumto assess different routes scenarios designed following those sets of preliminary guidelines.3) Application of this assessment methodology to quantify the impact of each set of preliminary guidelines for route network design, thus choosing the best alternatives.The outputs can be divided into two categories. 1) Heuristic processes for the systematic design of routes in the BRT system. 2) Selected guidelines for the design of route network in TransMilenio. This report will be focused on the second category of outputs. Among the conclusions, the BRT services in Bogotá should be designed with a multi-criteria approach, which implies a relatively complex route network. A very simplified route network has proven to be inconvenient. On the other hand, in the short term, it is recommended to maintain diametrical routes to avoid the collapse of central stations due to increased transfers. However, in the medium term, the paradigm must evolve to radial routes design. This approach would make it possible to significantly reduce the minimum required fleet, improving headways, increasing comfort within buses, and/or reducing investment in rolling stock. Furthermore, it has been shown that the radial routes approach would require four new central interchange stations in Bogotá.

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Section: State Of the Artmentioning

confidence: 99%

General guidelines for the design of BRT routes in the Public Transport Integrated System of Bogotá

Triviño¹

2021

Datasets

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“…Since the level of service and the operating costs are naturally in conflict [16], our model takes into account the trade-off between these criteria by optimizing the timetabling and vehicle scheduling. Thus, development of this study makes relevant the extent to which public transport not only can improve the quality of life of urban dwellers, providing adequate mobility, but also contributes to the solution of urban problems such as noise, congestion, lack of public spaces, pollution, etc [25].…”

Section: Introductionmentioning

confidence: 99%

Exploiting the Timetabling Flexibility in the Context of the Vehicle Scheduling Problem With Heterogeneous Fleet

et al. 2019

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In the context of a heterogeneous fleet, the single-depot Vehicle Scheduling Problem is known as the Vehicle Type Scheduling Problem (VTSP). In this paper, we extend a VTSP model proposed in the literature to enable timetabling flexibility. Two strategies were developed to promote flexibility: aggregated trips and time windows. The former allows to aggregate two or more trips, occurring close in time, into a single one through the use of larger vehicle types, while the latter allows shifting the departure time of scheduled trips backward in few minutes. Both approaches were tested on generated instances that simulate the traffic behavior of a Brazilian city, where clock-face departure pattern is not required and demand peak times occur. We verified significant savings in the daily operation of the public transportation service with acceptable impact on passengers' experience.

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“…Most of these methods incorporate an objective function that takes into account both, the cost in time for the users and the operation costs. This function, which is non-linear, is subsequently minimized subjected to fleet availability constrains [4,5,6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Improving the bus flow in a Bus Rapid Transit system: an approach based on cellular automata simulations

Uribe-Laverde,

Oquendo-Patiño

2019

Preprint

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We studied the bus flow in a Bus Rapid Transit (BRT) system using a novel approach based on a cellular automata (CA) that properly accounts for bus interactions. The model quantitatively reproduces the bus queuing behaviour for both fixed and random dwell times, with one bus service. For more bus services, our results show that the bus flow strongly depends not only on how the buses are distributed among the services, but also on how the bus stops are physically arranged at the stations. The latter dependence has hitherto not been considered in common BRT optimization methods. By using a genetic algorithm, we could find the bus distribution that maximizes the bus flow for a given stops arrangement at the stations, and explore its evolution with the bus density. Our results suggest a set of guidelines which could be applied on working BRT systems to improve the bus flow.

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And Solution Method to a Simultaneous Route Design and Frequency Setting Problem for a Bus Rapid Transit System in Colombia

Cited by 7 publications

References 34 publications

General guidelines for the design of BRT routes in the Public Transport Integrated System of Bogotá

General guidelines for the design of BRT routes in the Public Transport Integrated System of Bogotá

Exploiting the Timetabling Flexibility in the Context of the Vehicle Scheduling Problem With Heterogeneous Fleet

Improving the bus flow in a Bus Rapid Transit system: an approach based on cellular automata simulations

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