For this test, Nissan is collaboratiing with cellular provider NTT DoCoMo. NTT will give specially-equipped cell phones to 500 pedestrians GPS enabled cell phones that will transmit location data to a central server. Nissan will provide drivers with 200 cars equipped with warning systems to alert the driver of a potential collision or accident based on the location data that is shared from the servers. Nissan will be monitoring the driver's responses to the warnings they receive as a way of evaluating the effectiveness of the system. The automaker will also be optimizing the information processing algorithms within the system. If such systems were in widespread use, the amount of available data could easily become overwhelming to a computer system and the processing needs to be streamlined.