We released version 22.214.171.124 update of Metro Traffic Simulator (MTS) for Windows 8.1 today. Some fundamental processing model is fixed to avoid odd vehicle movements. And we introduce new path finding algorithm using path reservation which is published at ITS World Congress 2014 last month. You can re-examine performance of proactive route search method on MTS. You can find reservation based proactive route search outperform other conventional route searches in grid map with relatively high traffic demand. Please see abstract of this method in following presentation :
Please refer Metro Traffic Simulator page to check change log.