22 citations · 84 across the 21 of their papers we have counts for
25 papers
Deep Reinforcement Q-Learning for Intelligent Traffic Signal Control with Partial Detection
Romain Ducrocq, Nadir Farhi
Intelligent traffic signal controllers, applying DQN algorithms to traffic light policy optimization, efficiently reduce traffic congestion by adjusting traffic signals to real-tim…
Estimation of road traffic state at a multi-lanes controlled junction
Cyril Nguyen Van Phu, Nadir Farhi
We present in this paper a method for the estimation of traffic state at road junctions controlled with traffic lights. We assume mixed traffic where a proportion of vehicles are e…
Dynamic programming systems for modeling and control of the traffic in transportation networks
Nadir Farhi
This thesis is entitled Dynamic programming systems for modeling and control of the traffic in transportation networks. Two parts are distinguished in this dissertation: 1) methods…
Comprehensive passenger demand-dependent traffic control on a metro line with a junction and a derivation of the traffic phases
Florian Schanzenbacher, Nadir Farhi, Fabien Leurent +1
This paper is an extended abstract on a traffic model for the train dynamics on a metro line with a junction. The dynamic model includes control laws on the dwell and on the run ti…
Estimation of urban traffic state with probe vehicles
Cyril Nguyen Van Phu, Nadir Farhi
We present in this paper a method to estimate urban traffic state with communicating vehicles. Vehicles moving on the links of the urban road network form queues at the traffic lig…
Real-time control of metro train dynamics with minimization of train time-headway variance
Florian Schanzenbacher, Nadir Farhi, Fabien Leurent +1
We present here a real-time control model for the train dynamics in a linear metro line system. The model describes the train dynamics taking into account average passenger arrival…
A discrete event traffic model explaining the traffic phases of the train dynamics on a linear metro line with demand-dependent control
Florian Schanzenbacher, Nadir Farhi, Fabien Leurent +1
In this paper we present a mathematical model of the train dynamics in a linear metro line system with demand-dependent run and dwell times. On every segment of the line, we consid…
A discrete event traffic model explaining the traffic phases of the train dynamics in a metro line system with a junction
Florian Schanzenbächer, Nadir Farhi, Zoi Christoforou +2
This paper presents a mathematical model for the train dynamics in a mass-transit metro line system with one symmetrically operated junction. We distinguish three parts: a central…
M/G/c/c state dependent queuing model for a road traffic system of two sections in tandem
Nacira Guerouahane, Djamil Aissani, Nadir Farhi +1
We propose in this article a M/G/c/c state dependent queuing model for road traffic flow. The model is based on finite capacity queuing theory which captures the stationary density…
A vehicle-to-infrastructure communication based algorithm for urban traffic control
Cyril Nguyen Van Phu, Nadir Farhi, Habib Haj-Salem +1
We present in this paper a new algorithm for urban traffic light control with mixed traffic (communicating and non communicating vehicles) and mixed infrastructure (equipped and un…
M/g/c/c state dependent queueing model for road traffic simulation
Nacira Guerrouahane, Djamil Aissani, Louiza Bouallouche-Medjkoune +1
In this paper, we present a stochastic queuing model for the road traffic, which captures the stationary density-flow relationships in both uncongested and congestion conditions. T…
Robust adaptive strategies for the guidance of users in road networks
Farida Manseur, Nadir Farhi, Habib Haj-Salem +1
We present an algorithm for optimal guidance of users in road networks. It is a "stochastic-on-time-arrival (SOTA)"-like algorithm which calculates optimal guidance strategies with…
Traffic Modeling and Real-time Control for Metro Lines
Nadir Farhi, Cyril Nguyen Van Phu, Habib Haj-Salem +1
We present in this article traffic flow and control models for the train dynamics in metro lines. The first model, written in the max-plus algebra, takes into account minimum runni…
A semi-decentralized control strategy for urban traffic
Nadir Farhi, Cyril Nguyen Van Phu, Mouna Amir +2
We present in this article a semi-decentralized approach for urban traffic control, based on the TUC (Traffic responsive Urban Control) strategy. We assume that the control is cent…
Upper bounds for the travel time on traffic systems
Nadir Farhi, Habib Haj-Salem, Jean-Patrick Lebacque
A key measure of performance and comfort in a road traffic network is the travel time that the users of the network experience to complete their journeys. Travel times on road traf…
An algebraic approach for modeling and simulation of road traffic networks
Nadir Farhi, Habib Haj-Salem, Jean-Patrick Lebacque
We present in this article an algebraic approach to model and simulate road traffic networks. By defining a set of road traffic systems and adequate concatenating operators in that…
The Traffic Phases of Road Networks
Nadir Farhi, Maurice Goursat, Jean-Pierre Quadrat
We study the relation between the average traffic flow and the vehicle density on road networks that we call 2D-traffic fundamental diagram. We show that this diagram presents main…
Multi-Anticipative Piecewise-Linear Car-Following Model
Nadir Farhi, Habib Haj-Salem, Jean-Patrick Lebacque
We propose in this article an extension of the piecewise linear car-following model to multi-anticipative driving. As in the one-car-anticipative model, the stability and the stati…
The Logit lane assignment model: first results
Nadir Farhi, Habib Haj-Salem, Megan Khoshyaran +4
The Logit lane assignment model has been introduced recently in order to describe multi-lane traffic flow from a macroscopic point of view. The model is based on the idea that each…
Algebraic Approach for Performance Bound Calculus on Transportation Networks (Road Network Calculus)
Nadir Farhi, Habib Haj-Salem, Jean-Patrick Lebacque
We propose in this article an adaptation of the basic techniques of the deterministic network calculus theory to the road traffic flow theory. Network calculus is a theory based on…
Piecewise linear car-following modeling
Nadir Farhi
We present a traffic model that extends the linear car-following model as well as the min-plus traffic model (a model based on the min-plus algebra). A discrete-time car-dynamics d…
Performance bounds in wormhole routing, a network calculus approach
Nadir Farhi, Bruno Gaujal
We present a model of performance bound calculus on feedforward networks where data packets are routed under wormhole routing discipline. We are interested in determining maximum e…
Fundamental Diagrams of 1D-Traffic Flow by Optimal Control Models
Nadir Farhi
Traffic on a circular road is described by dynamic programming equations associated to optimal control problems. By solving the equations analytically, we derive the relation betwe…
About Dynamical Systems Appearing in the Microscopic Traffic Modeling
Nadir Farhi, Maurice Goursat, Jean-Pierre Quadrat
Motivated by microscopic traffic modeling, we analyze dynamical systems which have a piecewise linear concave dynamics not necessarily monotonic. We introduce a deterministic Petri…