• Case studies: Using heuristics.

      Lowndes, Val; Bagdasar, Ovidiu; Berry, Stuart; University of Derby (Springer, 2017-04-14)
      The aim of these case studies is to demonstrate how large and complex decision-making problems can be “solved” using heuristic methods.
    • Traffic assignment: methods and simulations for an alternative formulation of the fixed demand problem

      Bagdasar, Ovidiu; Berry, Stuart; O’Neill, Sam; Popovici, Nicolae; Raja, Ramachandran; University of Derby; Technical University of Cluj-Napoca (Elsevier, 2018-08-30)
      Motorists often face the dilemma of choosing the route enabling them to realise the fastest (i.e., shortest) journey time. In this paper we examine discrete and continuous optimisation and equilibrium-type problems for a simplified parallel link traffic model using a variance based approach. Various methodologies used for solving these problems (brute force, dynamic programming, tabu search, steepest descent) are explored and comparison is made with the Beckmann cost function traditionally employed in transport modelling.