"Walk - Huntington and Forsyth" pen & ink

There is an outdoor cafe on the Northeastern campus where I sat for an hour the other day.  It was fascinating to watch the Green Line,  buses, and pedestrians coming and going.  Some waited by the corner to meet a date, some smiled joyfully as they bumped into a friend, others walked purposefully to a variety of destinations.  I have always been intrigued by the layering of traffic patterns; cars, trolleys, and multitudes of pedestrians.  How are the traffic lights arranged to keep everyone safe and moving?   All I know is that it works.  
It was a beautiful evening, and interesting to decide how to arrange the layers of people front to farther back.  I began with the arrangement of the lamp posts and traffic lights and then added people as they came and went, with the goal of conveying the hubbub of the afternoon.  

As always, thank you for looking.