Incorporating emissions models within a multi-objective vehicle routing problem. (2013)
Conference Proceeding
Urquhart, N. B., Scott, C., & Hart, E. (2013). Incorporating emissions models within a multi-objective vehicle routing problem. In C. Blum (Ed.), GECCO'13 Companion: Proceeding of the fifteenth annual conference companion on Genetic and evolutionary computation (193-194). https://doi.org/10.1145/2464576.2464663

The vehicle routing problem with time windows (VRPTW) has previously been investigated as a multi-objective problem. In this paper estimated carbon emissions is added as an objective alongside the number of vehicles required and distance travelled. W... Read More about Incorporating emissions models within a multi-objective vehicle routing problem..

Using graphical information systems to improve vehicle routing problem instances. (2013)
Conference Proceeding
Urquhart, N. B., Scott, C., & Hart, E. (2013). Using graphical information systems to improve vehicle routing problem instances. In C. Blum (Ed.), GECCO'13 Companion (1097-1102). https://doi.org/10.1145/2464576.2466802

This paper makes the assertion that vehicle routing rearch has produced increasingly more powerful problem solvers, but has not increased the realism or compexity of typical problem instances. This paper argues that the time has come of use realistic... Read More about Using graphical information systems to improve vehicle routing problem instances..

Using an evolutionary algorithm to discover low CO2 tours within a Travelling Salesman Problem (2010)
Conference Proceeding
Urquhart, N. B., Scott, C., & Hart, E. (2010). Using an evolutionary algorithm to discover low CO2 tours within a Travelling Salesman Problem. In C. Chio, A. Brabazon, G. A. Di Caro, M. Ebner, M. Farooq, A. Fink, …N. Urquhart (Eds.), Applications of evolutionary computation : EvoApplications 2010: EvoCOMNET, EvoENVIRONMENT, EvoFIN, EvoMUSART, and EvoTRANSLOG, Istanbul, Turkey, April 7-9, 2010, Proceedings, Part II (421-430). https://doi.org/10.1007/978-3-642-12242-2_43

This paper examines the issues surrounding the effects of using vehicle emissions as the fitness criteria when solving routing problems using evolutionary techniques. The case-study examined is that of the Travelling Salesman Problem (TSP) based upon... Read More about Using an evolutionary algorithm to discover low CO2 tours within a Travelling Salesman Problem.