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I'm curious as to _how_ the data was collected for this report. Did they use camera feed data? Walk-button push counts? HR rideshare incentive data? Sending out surveys?

The article talked about trips -- but I didn't see any differentiation between commutes to work and walking in the park, for example.

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I had the same question. The "source" of this information, StreetLight Data, does have a functioning website and an impressive customer list, though it mostly invokes "big data" to explain what it does.

Poking a little further, it sounds as if they're aggregating smartphone data, though we're not told much about how they get it, or how they adjust for people walking with or without their phones on.

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