QRS II is the strategic travel demand forecasting package.

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 recently done, visit his web site at UWM.  Requests for product information, product support, and purchases should be sent to AJH Associates.

NOTICES:  QRS II 9 is now available.  Go to the Release Information page to see all the new stuff QRS II 9 can do.  GNE Version 8.4 for 32-bit systems is posted on the Resources page for current GNE 8 users.  A 64-bit edition of GNE 8.4 is available by request.  QRS II 9.1 continues in alpha testing.