QRS II is the strategic travel demand forecasting package. As of March 5, 2022, QRS II 9 is a free download. Go to the Download page to get the latest files.
This site contains information on QRS II and its sister product GNE. QRS II (Quick Response System II). GNE (General Network Editor) is the bundled network editor.
Technical and educational questions regarding QRS II and GNE may be sent to Alan J. Horowitz, Emeritus Professor of Civil Engineering, University of Wisconsin — Milwaukee. If you are interested in seeing other things that Alan has done, visit his web site at UWM.
NOTICES: QRS II 9.1 is now available. Go to the Release Information page to see all the new stuff QRS II 9 can do. There is a QRS II 9.2 beta version available on the Resources page.
