The need for traffic analysis and traffic management applies to a vast range of disciplines. Simulation of traffic may assist in both analysis and management of traffic. In many situations, simulation of traffic enables accurate traffic scenarios to be observed without the need and expense of physically generating such traffic in the real system. SIM-ENG is a simulation engine suitable for the discrete-event simulation of traffic. SIM-ENG accepts models designed using MMTS traffic simulation modelling methodology. The simulation of traffic generally requires large quantities of CPU processing time. Distribution of load over a network may be used to speed-up processing times. SIM-ENG may be incorporated into large simulation application software whereby interception of the simulation engine may occur at micro and macro levels.