question okay so that's the drivers so let me just quickly run through what the queueing model is basically the queueing model is now when I be my queueing model isn't in describing this to you I'm not going to say anything about why drivers and passengers are coming in at the rates that they're coming in they just are and then let's so I've already told you that I have some model that's strategic for how I'll determine the rate at which rides are requested how I'll determine the rate at which drivers actually entered the system now let me