I know what you said - I just don't believe it :-) Look I'm not tring to pick a fight, I just don't believe those stats. They don't feel right to me.
I don't believe that 50% of fans at matches come from within the yellow circle. And area of 7.5 sq miles out of Sheffields 142 sq miles total.
I don't get your point about busses. I assumed 9 miles/hr which is at the top of the speed range and single direct journeys which they mainly wouldn't be. You are saying that 90% of matchday attendees come from within the red circle - an area of 28 sq miles. I don't believe it.
I'm aslo not convinced by your new point about the highest density of fans living in districs within 2 miles. What do you mean by density exactly?
Obviously if you have data that you can share along with the methodology for capturing it, I will gladly bely up and tuck in to the neccessary humble pie.
To be clear I have no data at all - absolutely none. I have only anecdotal evidence based on the fact that I grew up well outside the yellow circle and know loads of owls fans who lived in the same place and went to matches taking two busses to get there. Also by observing how many people come on the Supertram from town (and beyond) and how busy the roads are with people in cars with scarves on display.
Having said that I did sometimes walk to the match from inside the red circle....I had to drive there and park up mind!