Sorry even getting older and fatter (and I never was a mountain goat on a bike) I find that stupid. If I can't get anywhere without stupidly steep hills is a negative. BUT no hills, no fun canyons and rides to overlooks where one can look out and say they accomplished something is a bigger negative.
Seattle Bike Infrastructure
Raw USGS Elevation Data Used For Hill Score
To calculate the "hilliness" of an area we look at the steepest grade within a 200 meter radius of the origin. A grade of 10% - 2% is given a score of 0 - 100. Our data source is the National Elevation Data set from the USGS.