Stage 1

Abstract

To counteract the congestion panorama experienced by the city of Medellin, it is necessary to characterize each one of the elements involved in vehicular traffic as well as to integrate them through a mathematical model in order to obtain an approach to the actual dynamics of the system. Thus, this project pretends to solve the mobility problems in the city of Medellin, reducing the time spent by the drivers on the road. To achieve this goal, the traffic problem is addressed from a multi-modal point of view, understood as a system in whose intersections vehicles, motorcicles, BRT, pedestrians and, sometimes, bycicles; through the coordination of different types of traffic lights (isolated, single-mode and multi-mode). This coordination is based in the solution of optimization problems whose communications structure can be hierarchical or distributed (a centralized structure is not considered because the scaling type of traffic systems).

Keywords: Mobility, multi-modal transportation network, microscopic and macroscopic traffic models, model-based predictive control.

Objectives

General Objective: To develop traffic models describing the interaction among different actors found in vehicular traffic (people, vehicles and BRT), useful to formulate strategies for monitoring and control of urban traffic in a multi-modal framework (different modes of transportation interacting among them).

Specific Objectives:

1. To formulate a general model of urban traffic which considers different actors and factors that influence the the behavior of urban traffic (vehicular traffic, bycicle traffic, pedestrian traffic, bus traffic and BRT traffic, among others).

2. To identify different forms of operation of traffic lights (isolated and coordinated), the types of traffic lights available to control urban traffic (single mode and multi-mode) and the different control strategies developed for them (predictive control, robust control and multi-objective control).

3. To identify and propose optimization-based traffic lights coordination strategies that allow to improve the use of road infrastructure and to control urban traffic having into account the different available transportation modes.

4. To develop a multi-modal traffic simulation tool, based on the proposed models, that allows to validate the monitoring and control strategies generated in this project.