Work Zone FreeFlow Speed Model
Vichika Iragavarapu Stantec 
Equation 1010 utilizes fsr, which is defined as speed ratio (decimal); the ratio of nonworkzone speed to workzone speed (pg. 1041). I believe this needs to be the ratio of workzone speed to nonworkzone speed to accurately estimate FFSwz. For example, if nonworkzone speed limit is 70 mph and work zone speed limit is 40mph for a onelane closure, Eq. 1010 would estimate FFSwz to be 76 mph. this doesn't seem correct. However if fsr is defined as the ratio of workzone speed to nonworkzone speed, the estimated FFSwz will for the example site will be 36 mph, which seems more reasonable. Thoughts? Vichika (Edited July 21st, 2020 at 5:31 PM UTC) 

Scott Washburn University of Florida 
This issue was discussed at our midyear meeting (Austin, June 2018). In the database used to calibrate the model, there were no instances of large differences between work zone and nonwork zone speeds. The equation would have to be recalibrated to use the inverse of the speed ratio. For now, we are going to add a disclaimer that the speed ratio only applies when it is small (less than 1.2). (Edited July 30th, 2020 at 5:32 PM UTC) 

Cooper Calhoun Alabama Department of Transportation 
Have there been anymore discussions on this topic? Do you make fsr = 0 if it is greater than 1.2? (Edited July 24th, 2020 at 5:32 PM UTC) 
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