TSIS is an integrated modeling environment that allows the user to define and manage traffic analysis projects, model traffic networks, create inputs for traffic simulation analysis, run traffic simulation, and interpret the results of those models.
CORSIM is a microscopic traffic simulation capable of modeling surface streets, freeways, highways, and integrated networks, including segments, weaves, merge/diverges, and intersections with stop/yield signs or traffic signals. It simulates traffic and traffic control systems using research-backed and established vehicle and driver behavior models.
TSIS-CORSIM has been applied by thousands of practitioners and researchers worldwide for over 20 years, embodying a wealth of experience and maturity.