i'm chris hayashi and today i'm deputy director of the division of taxis and accessible services for the san francisco municipal transportation agency. this is my last day on the job. i will be going into those golden pastures of retirement. [laughter ] i do continue to care about this issue very much and i was very pleased to be invited to talk to you about it today. first of all let me define in baseline concepts here. first of all what is that distinguishs a taxi cab? it's on-demand point to point transportation and it distinguishes from other four modes of transportation in san francisco. you have pedestrian, bicycle, transit, taxi, private automobile and all of those things work together and taxis is a very important compliment to those other modes. tncs stands for "transportation network company." it of course came about because of the ability to dispatch this form of transportation on a smartphone platform and what distinguishs a tnc as opposed to a limousine or taxi, it's supposed to be in a personal vehicle. so taxis have traditionally had a monopoly over point to point tran