The histogram for Charlotte is asymmetrical... what's up with that? One-way streets? (The same is true for some other cities in the follow-up also.) The article doesn't say.
>OSMnx automatically calculates all of the streets’ bearings. Specifically it calculates the compass bearing from each directed edge’s origin node u to its destination node v. http://geoffboeing.com/2018/02/street-network-orientation/
>The street networks are directed and preserve one-way directionality. http://geoffboeing.com/2016/11/osmnx-python-street-networks/
>OSMnx automatically calculates all of the streets’ bearings. Specifically it calculates the compass bearing from each directed edge’s origin node u to its destination node v. http://geoffboeing.com/2018/02/street-network-orientation/