The Traffic.com Jam Factor is like a Richter Scale for traffic. It’s an overall measure of the traffic intensity on a roadway, or on a section of a roadway. Because the Jam Factor calculation uses real-time and historical speed data from our digital sensors and those of our partners, as well as our detailed accident, construction and congestion information, it’s a comprehensive measuring tool that is unique to Traffic.com.
The Jam Factor is measured on a scale of 0-10, with 10 representing the worst traffic conditions. This numerical scale also provides color coding to give you a quick, at-a-glance picture of conditions on the roadways.
According to Gear Fisher, Chief Technology Officer at TrainingPeaks:
“The beauty of TSS and IF is that, combined, they can tell the amount of physiological stress put on a person’s body. They are all based on an individual rider’s threshold. So unlike heart-rate or even power zones, where 400 watts is 400 watts but if I weight 300 pounds and the guy next to me weighs 150 pounds the end result is something dramatically different in terms of velocity. If I go out and do 200 TSS points, or Lance Armstrong goes out and does 200 TSS points, the relative effect on each of our bodies is the same. So he put his body through the same amount of stress as I did, even though it only took me 2 hours to get 200 TSS points and it might take Lance Armstrong 3 hours – or even an hour, depending on how hard he’s going.”
The third is from a co-worker, who’s Slapdown Index is calculated from the number of hours of sleep she had the night before, the length of her commute that morning, and the frequency of annoying email requests she gets before 10:00am. A high Slapdown Index is a leading indicator of her propensity to inflict bodily harm on those who dare approach her cube.