Evaluation of decision support modules and human interfaces using the

The quality of the command and control processes in the railway business will be of outmost importance in the creation of new products and services, which are competitive in the traffic markets. To increase the quality and flexibility of the online control of train movements there are two ongoing interdependent projects in Sweden named TOPSim and CATD respectively. The main objective of the TOPSim project is to create a Train traffic Operation and Planning SIMulator that is intended to be the used in the development and evaluation of new train control and decision support systems (DSS). On the other hand the objectives of the CATD project (Computer-Aided Train Dispatching) are to formulate and communicate the requirements for the simulator as well as develop, implement, test, and evaluate new decision support tools and human-machine interfaces. The new simulator system TOPSim/TTS is an interactive, real-time simulator. It has a modular architecture making it possible to connect external control and presentation systems via the central communication module. It is based on a redesign of the kernel of the previously developed simulation system, SIMON/TTS, which for several years has been use