The New York City Taxi & Limousine Commission has released a staggeringly detailed historical dataset covering billions of individual taxi trips in the city from January 2009. The detailed trip data is more than just a list of pickups and drop-offs : it’s the stories of New York and indicating urban residents' social behaviors. The dataset addresses many simple questions and beyond.In all those 'taxis',  there is a huge fleet of FHV(For-Hire-Vehicle)  thanks to the tech companies creativity. And almost all the new FHVs are Uber or Lyft. How they are impacting the city is interesting. One question is do they really provide  more transportation accessibility to the four boroughs outside Manhattan where some people are relatively far from subway stations ? Also does FHV pick up more customers in lower income areas?