There were four points to driving without creating traffic jams. The first is not to slow down in the sag section.
The second is to maintain a good distance between vehicles. The third is to not change lanes unnecessarily. The fourth is to be aware of "fastener merging" When merging from the acceleration lane to the main line, go to the front and merge alternately one car at a time, rather than merging freely at the desired timing. The time lost due to traffic congestion has decreased by about 3%.