The Experts below are selected from a list of 180 Experts worldwide ranked by ideXlab platform

Andreas Hegyi - One of the best experts on this subject based on the ideXlab platform.

  • Optimal coordination of Variable speed limits to suppress shock waves
    IEEE Transactions on Intelligent Transportation Systems, 2005
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Hellendoorn
    Abstract:

    When freeway traffic is dense, shock waves may appear. These shock\nwaves result in longer travel times and in sudden large variations\nin the speeds of the vehicles, which could lead to unsafe situations.\nDynamic speed limits can be used to eliminate or at least to reduce\nthe effects of shock waves. However, coordination of the Variable\nspeed limits is necessary in order to prevent the occurrence of new\nshock waves and/or a negative impact on the traffic flows in other\nlocations. In this paper, we present a model predictive control approach\nto optimally Coordinate Variable speed limits for freeway traffic\nwith the aim of suppressing shock waves. First, we optimize continuous\nvalued speed limits, such that the total travel time is minimal.\nNext, we include a safety constraint that prevents drivers from encountering\nspeed limit drops larger than, e.g., 10 km/h. Furthermore, to get\na better correspondence between the computed and applied control\nsignals, we also consider discrete speed limits. We illustrate our\napproach with a benchmark problem.

  • MPC-based optimal coordination of Variable speed limits to suppress shock waves in freeway traffic
    Proceedings of the 2003 American Control Conference 2003., 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Heelendoorn
    Abstract:

    A freeway bottlenecks shock waves may appear. These shockwaves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on the traffic flows in other locations, coordination of the Variable speed limits is necessary. In this paper, we further extend our results in connection with a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for freeway traffic. First of all, we include a safety constraint that prevents drivers from encountering speed limit drops larger than, e.g., 10 km/h. Furthermore, to get a better correspondence between the computed and the applied control signals, we consider discrete-valued speed limits.

  • MPC-based optimal coordination of Variable speed limits to suppress
    Proceedings of the 2003 American Control Conference, 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Hellendoorn
    Abstract:

    A freeway bottlenecks shock waves may appear. These shockwaves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on the traffic flows in other locations, coordination of the Variable speed limits is necessary. In this paper, we further extend our results in connection with a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for freeway traffic. First of all, we include a safety constraint that prevents drivers from encountering speed limit drops larger than, e.g., 10 km/h. Furthermore, to get a better correspondence between the computed and the applied control signals, we consider discrete-valued speed limits.

  • Optimal coordination of Variable speed limits to suppress shock waves
    42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, Hans Hellendoorn
    Abstract:

    We present a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for free-way traffic. In particular, we consider discrete-valued Variable speed limits. Moreover, we also impose a safety constraint that prevents drivers from encountering speed limit drops larger than, say, 10 km/h. The control objective is to minimize the total time that vehicles spend in the network. This approach results in dynamic speed limits that reduce or even eliminate shock waves.

  • Optimal coordination of ramp metering and Variable speed control-an MPC approach
    Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
    Co-Authors: Andreas Hegyi, Hans Hellendoorn, Bart De Schutter, T. Van Den Boom
    Abstract:

    We present a model predictive control (MPC) approach to optimally Coordinate Variable speed limits and ramp metering for highway traffic. The basic idea is that speed limits can increase the range in which ramp metering is useful. The control objective is to minimize the total time that vehicles spend in the network. For the prediction of the evolution of the traffic flows in the network we use an adapted version of the METANET model that takes the Variable speed limits into account. The Coordinated control results in a network with less congestion, a higher outflow, and a lower total time spent. In addition, the receding horizon approach of MPC results in an adaptive, online control strategy that automatically takes changes in the system parameters into account.

Bart De Schutter - One of the best experts on this subject based on the ideXlab platform.

  • Optimal coordination of Variable speed limits to suppress shock waves
    IEEE Transactions on Intelligent Transportation Systems, 2005
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Hellendoorn
    Abstract:

    When freeway traffic is dense, shock waves may appear. These shock\nwaves result in longer travel times and in sudden large variations\nin the speeds of the vehicles, which could lead to unsafe situations.\nDynamic speed limits can be used to eliminate or at least to reduce\nthe effects of shock waves. However, coordination of the Variable\nspeed limits is necessary in order to prevent the occurrence of new\nshock waves and/or a negative impact on the traffic flows in other\nlocations. In this paper, we present a model predictive control approach\nto optimally Coordinate Variable speed limits for freeway traffic\nwith the aim of suppressing shock waves. First, we optimize continuous\nvalued speed limits, such that the total travel time is minimal.\nNext, we include a safety constraint that prevents drivers from encountering\nspeed limit drops larger than, e.g., 10 km/h. Furthermore, to get\na better correspondence between the computed and applied control\nsignals, we also consider discrete speed limits. We illustrate our\napproach with a benchmark problem.

  • MPC-based optimal coordination of Variable speed limits to suppress shock waves in freeway traffic
    Proceedings of the 2003 American Control Conference 2003., 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Heelendoorn
    Abstract:

    A freeway bottlenecks shock waves may appear. These shockwaves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on the traffic flows in other locations, coordination of the Variable speed limits is necessary. In this paper, we further extend our results in connection with a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for freeway traffic. First of all, we include a safety constraint that prevents drivers from encountering speed limit drops larger than, e.g., 10 km/h. Furthermore, to get a better correspondence between the computed and the applied control signals, we consider discrete-valued speed limits.

  • MPC-based optimal coordination of Variable speed limits to suppress
    Proceedings of the 2003 American Control Conference, 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Hellendoorn
    Abstract:

    A freeway bottlenecks shock waves may appear. These shockwaves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on the traffic flows in other locations, coordination of the Variable speed limits is necessary. In this paper, we further extend our results in connection with a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for freeway traffic. First of all, we include a safety constraint that prevents drivers from encountering speed limit drops larger than, e.g., 10 km/h. Furthermore, to get a better correspondence between the computed and the applied control signals, we consider discrete-valued speed limits.

  • Optimal coordination of Variable speed limits to suppress shock waves
    42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, Hans Hellendoorn
    Abstract:

    We present a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for free-way traffic. In particular, we consider discrete-valued Variable speed limits. Moreover, we also impose a safety constraint that prevents drivers from encountering speed limit drops larger than, say, 10 km/h. The control objective is to minimize the total time that vehicles spend in the network. This approach results in dynamic speed limits that reduce or even eliminate shock waves.

  • Optimal coordination of ramp metering and Variable speed control-an MPC approach
    Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
    Co-Authors: Andreas Hegyi, Hans Hellendoorn, Bart De Schutter, T. Van Den Boom
    Abstract:

    We present a model predictive control (MPC) approach to optimally Coordinate Variable speed limits and ramp metering for highway traffic. The basic idea is that speed limits can increase the range in which ramp metering is useful. The control objective is to minimize the total time that vehicles spend in the network. For the prediction of the evolution of the traffic flows in the network we use an adapted version of the METANET model that takes the Variable speed limits into account. The Coordinated control results in a network with less congestion, a higher outflow, and a lower total time spent. In addition, the receding horizon approach of MPC results in an adaptive, online control strategy that automatically takes changes in the system parameters into account.

J. Hellendoorn - One of the best experts on this subject based on the ideXlab platform.

  • Optimal coordination of Variable speed limits to suppress shock waves
    IEEE Transactions on Intelligent Transportation Systems, 2005
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Hellendoorn
    Abstract:

    When freeway traffic is dense, shock waves may appear. These shock\nwaves result in longer travel times and in sudden large variations\nin the speeds of the vehicles, which could lead to unsafe situations.\nDynamic speed limits can be used to eliminate or at least to reduce\nthe effects of shock waves. However, coordination of the Variable\nspeed limits is necessary in order to prevent the occurrence of new\nshock waves and/or a negative impact on the traffic flows in other\nlocations. In this paper, we present a model predictive control approach\nto optimally Coordinate Variable speed limits for freeway traffic\nwith the aim of suppressing shock waves. First, we optimize continuous\nvalued speed limits, such that the total travel time is minimal.\nNext, we include a safety constraint that prevents drivers from encountering\nspeed limit drops larger than, e.g., 10 km/h. Furthermore, to get\na better correspondence between the computed and applied control\nsignals, we also consider discrete speed limits. We illustrate our\napproach with a benchmark problem.

  • MPC-based optimal coordination of Variable speed limits to suppress
    Proceedings of the 2003 American Control Conference, 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Hellendoorn
    Abstract:

    A freeway bottlenecks shock waves may appear. These shockwaves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on the traffic flows in other locations, coordination of the Variable speed limits is necessary. In this paper, we further extend our results in connection with a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for freeway traffic. First of all, we include a safety constraint that prevents drivers from encountering speed limit drops larger than, e.g., 10 km/h. Furthermore, to get a better correspondence between the computed and the applied control signals, we consider discrete-valued speed limits.

Hans Hellendoorn - One of the best experts on this subject based on the ideXlab platform.

  • Optimal coordination of Variable speed limits to suppress shock waves
    42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, Hans Hellendoorn
    Abstract:

    We present a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for free-way traffic. In particular, we consider discrete-valued Variable speed limits. Moreover, we also impose a safety constraint that prevents drivers from encountering speed limit drops larger than, say, 10 km/h. The control objective is to minimize the total time that vehicles spend in the network. This approach results in dynamic speed limits that reduce or even eliminate shock waves.

  • Optimal coordination of ramp metering and Variable speed control-an MPC approach
    Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
    Co-Authors: Andreas Hegyi, Hans Hellendoorn, Bart De Schutter, T. Van Den Boom
    Abstract:

    We present a model predictive control (MPC) approach to optimally Coordinate Variable speed limits and ramp metering for highway traffic. The basic idea is that speed limits can increase the range in which ramp metering is useful. The control objective is to minimize the total time that vehicles spend in the network. For the prediction of the evolution of the traffic flows in the network we use an adapted version of the METANET model that takes the Variable speed limits into account. The Coordinated control results in a network with less congestion, a higher outflow, and a lower total time spent. In addition, the receding horizon approach of MPC results in an adaptive, online control strategy that automatically takes changes in the system parameters into account.

  • Shock wave elimination/reduction by optimal coordination of Variable speed limits
    IEEE Conference on Intelligent Transportation Systems Proceedings ITSC, 2002
    Co-Authors: Pascal Breton, Andreas Hegyi, Bart De Schutter, Hans Hellendoorn
    Abstract:

    ? 2002 IEEE.We present a model predictive control (MFC) approach to optimally Coordinate Variable speed limits for highway traffic. The basic Idea is that dynamic speed limits can create traffic conditions where shock waves can damp out faster. The control objective is to minimize the total time that vehicles spend In the network. For the prediction of the evolution of the traffic flow In the network we use an adapted version of the METANET model that takes the Variable speed limits into account. The Coordinated control results In a network with less congestion, a higher outflow, and a lower total time spent. In addition, the needing horizon approach or MPC results in an adaptive, on-line control strategy that automatically takes changes In the system parameters Into account.

J. Heelendoorn - One of the best experts on this subject based on the ideXlab platform.

  • MPC-based optimal coordination of Variable speed limits to suppress shock waves in freeway traffic
    Proceedings of the 2003 American Control Conference 2003., 2003
    Co-Authors: Andreas Hegyi, Bart De Schutter, J. Heelendoorn
    Abstract:

    A freeway bottlenecks shock waves may appear. These shockwaves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on the traffic flows in other locations, coordination of the Variable speed limits is necessary. In this paper, we further extend our results in connection with a model predictive control (MPC) approach to optimally Coordinate Variable speed limits for freeway traffic. First of all, we include a safety constraint that prevents drivers from encountering speed limit drops larger than, e.g., 10 km/h. Furthermore, to get a better correspondence between the computed and the applied control signals, we consider discrete-valued speed limits.