I thought this part was particularly interesting:For example, when surveys of cycle route users in San Francisco were conducted during peak commuting hours, they recorded a massive majority of male users. But when the city looked at the gender-disaggregated data, they discovered that far more women were using the routes for their commute than previously thought, but were choosing to travel outside peak hours when the roads and cycle lanes were quieter.

I do this too. By working 9-5:30 instead of 8-4:30 I avoid a surprising amount of traffic, making it safer, faster and more enjoyable.