Information about the travel forecasting package, Quick Response System II
QRS II had always had a form of feedback to trip distribution (more correctly to trip generation, although the trip generation step was insensitive to network travel times). In 1988 or so when I was testing a new installation of a “modified” Evans’ algorithm I had put into QRS II, which was quite similar to …
It is not so much that the recent report for FTA “Traffic Assignment and Feedback” is wrong. (I will call it the TAF report from here on.) The TAF report is just not sufficiently prescriptive. It is absolutely clear from the TAF report that traffic assignments, as practiced by many large MPOs, are ill; but …