Advanced Search
Article Contents
Article Contents

Non-local multi-class traffic flow models

  • * Corresponding author: Paola Goatin

    * Corresponding author: Paola Goatin
Abstract Full Text(HTML) Figure(5) Related Papers Cited by
  • We prove the existence for small times of weak solutions for a class of non-local systems in one space dimension, arising in traffic modeling. We approximate the problem by a Godunov type numerical scheme and we provide uniform ${{\mathbf{L}}^\infty } $ and BV estimates for the sequence of approximate solutions, locally in time. We finally present some numerical simulations illustrating the behavior of different classes of vehicles and we analyze two cost functionals measuring the dependence of congestion on traffic composition.

    Mathematics Subject Classification: Primary: 35L65, 90B20; Secondary: 65M08.


    \begin{equation} \\ \end{equation}
  • 加载中
  • Figure 1.  Numerical simulation illustrating that the simplex $\mathcal{S}$ is not an invariant domain for (1). We take $M = 2$ and we consider the initial conditions $\rho_1(0, x) = 0.9 \chi_{[-0.5, -0.3]}$ and $\rho_2(0, x) = 0.1 \chi_{]-\infty, 0]}+\chi_{]0, +\infty[}$ depicted in (a), the constant kernels $\omega_1(x) = \omega_2(x) = 1/\eta$, $\eta = 0.5$, and the speed functions given by $v^{max}_1 = 0.2$, $v^{max}_2 = 1$, $\psi(\xi) = \max\{1-\xi, 0\}$ for $\xi\geq 0$. The space and time discretization steps are $\Delta x = 0.001$ and $\Delta t = 0.4 \Delta x$. Plots (b) and (c) show the density profiles of $\rho_1$, $\rho_2$ and their sum $r$ at times $t = 1.8, ~2.8$. The function $\max_{x\in\mathbb{R}} r(t, x)$ is plotted in (d), showing that $r$ can take values greater than 1, even if $r(0, x) = \rho_1(0, x)+\rho_2(0, x)\leq1$

    Figure 2.  Density profiles of cars and trucks at increasing times corresponding to the non-local model (28)

    Figure 3.  Density profiles corresponding to the non-local problem (29) with $\beta = 0.9$ at different times

    Figure 4.  Functional $J$ (left) and $\Psi$ (right)

    Figure 5.  $(t, x)$-plots of the total traffic density $r(t, x) = \rho_1(t, x)+\rho_2(t, x)$ in (29) corresponding to different values of $\beta$: (a) no autonomous vehicles are present; (b) point of minimum for $\Psi$; (c) point of minimum for $J$; (d) point of maximum for $J$

  • [1] A. AggarwalR. M. Colombo and P. Goatin, Nonlocal systems of conservation laws in several space dimensions, SIAM J. Numer. Anal., 53 (2015), 963-983.  doi: 10.1137/140975255.
    [2] P. AmorimR. Colombo and A. Teixeira, On the numerical integration of scalar nonlocal conservation laws, ESAIM M2AN, 49 (2015), 19-37.  doi: 10.1051/m2an/2014023.
    [3] A. Aw and M. Rascle, Resurrection of "second order" models of traffic flow, SIAM J. Appl. Math., 60 (2000), 916–938 (electronic), URL http://dx.doi.org/10.1137/S0036139997332099. doi: 10.1137/S0036139997332099.
    [4] S. Benzoni-Gavage and R. M. Colombo, An $n$-populations model for traffic flow, European J. Appl. Math., 14 (2003), 587–612, URL https://doi.org/10.1017/S0956792503005266. doi: 10.1017/S0956792503005266.
    [5] S. Blandin and P. Goatin, Well-posedness of a conservation law with non-local flux arising in traffic flow modeling, Numer. Math., 132 (2016), 217–241, URL http://dx.doi.org/10.1007/s00211-015-0717-6. doi: 10.1007/s00211-015-0717-6.
    [6] R. M. Colombo and A. Groli, Minimising stop and go waves to optimise traffic flow, Appl. Math. Lett., 17 (2004), 697-701.  doi: 10.1016/S0893-9659(04)90107-3.
    [7] F. A. Chiarello and P. Goatin, Global entropy weak solutions for general non-local traffic flow models with anisotropic kernel, ESAIM: M2AN, 52 (2018), 163–180, URL https://doi.org/10.1051/m2an/2017066. doi: 10.1051/m2an/2017066.
    [8] J. Friedrich, O. Kolb and S. Göttlich, A Godunov type scheme for a class of scalar conservation laws with non-local flux, Netw. Heterog. Media, 13 (2018), 531–547, URL http://dx.doi.org/10.3934/nhm.2018024.
    [9] P. Goatin and S. Scialanga, Well-posedness and finite volume approximations of the LWR traffic flow model with non-local velocity, Netw. Heterog. Media, 11 (2016), 107–121, URL http://dx.doi.org/10.3934/nhm.2016.11.107. doi: 10.3934/nhm.2016.11.107.
    [10] R. J. LeVeque, Finite Volume Methods for Hyperbolic Problems, Cambridge Texts in Applied Mathematics, Cambridge University Press, Cambridge, 2002. doi: 10.1017/CBO9780511791253.
    [11] M. J. Lighthill and G. B. Whitham, On kinematic waves. Ⅱ. A theory of traffic flow on long crowded roads, Proc. Roy. Soc. London. Ser. A., 229 (1955), 317-345.  doi: 10.1098/rspa.1955.0089.
    [12] H. Payne, Models of Freeway Traffic and Control, Simulation Councils, Incorporated, 1971.
    [13] P. I. Richards, Shock waves on the highway, Operations Res., 4 (1956), 42-51.  doi: 10.1287/opre.4.1.42.
    [14] A. Sopasakis and M. A. Katsoulakis, Stochastic modeling and simulation of traffic flow: Asymmetric single exclusion process with Arrhenius look-ahead dynamics, SIAM J. Appl. Math., 66 (2006), 921–944 (electronic). doi: 10.1137/040617790.
    [15] G. Whitham, Linear and Nonlinear Waves, Pure and applied mathematics, Wiley, 1974.
    [16] H. Zhang, A non-equilibrium traffic model devoid of gas-like behavior, Transportation Research Part B: Methodological, 36 (2002), 275–290, URL http://www.sciencedirect.com/science/article/pii/S0191261500000503. doi: 10.1016/S0191-2615(00)00050-3.
  • 加载中



Article Metrics

HTML views(718) PDF downloads(255) Cited by(0)

Access History

Other Articles By Authors



    DownLoad:  Full-Size Img  PowerPoint