nagoya station. so far usui has stopped at two stations and passed two others. on time to the second. but then -- >> translator: nagoya station, departing 15 seconds late. >> reporter: it took time getting the passengers on and off. usui accelerates. he wants to make up for the delay. but he has to be careful. if he goes too fast, he'll trigger the automatic brakes. nudging the shifter, usui keeps just inside the speed limit. time check. >> translator: mikawa, passing, three seconds late. >> reporter: usui makes up the lost time over the next two stations. by the third station, he's got train and timetables synchronized again. >> translator: haromasu, passing on time. with the exception of the two through stations, usui has kept precisely to the schedule all the way to tokyo. >> translator: i was getting worried, but in the end i was able to keep my schedule. >> reporter: his 2 1/2-hour journey is recorded on a chip card. it's all there. speed, acceleration. even brake usage. second by second. on a good day usui's card is a record of driving perfection, one his