Raymond Johnson@max_in_somer @ai6yr The math for this gets interesting. Suppose a two-lane road is 25 feet wide and each cyclist needs a 5' x 10' space. So that's 5 cyclists wide (using the whole road) and 5280 / 10 x 5 = 2640 cyclists per mile. If those cyclists are riding 12 mph, that means in one hour you can get 2640 x 12 = 31,680 cyclists down that road. Keep that up for 3 hours (or on a 4-lane road, 1.5 hours), and you can approach 100,000 riders.
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