Track maintenance for higher speed operation of Shinkansen by using 'New ride quality management system'

The maximum speed of the Tohoku Shinkansen operating in the JR East area was 210 km/h at the time of commencement of operation in June, 1982. This maximum speed was increased to 245km/h in March 1985, to 275km/h in March 1990, and to 300km/h in March 2011 between Utsunomiya and...