Keiō Line
The Keiō Line is infamous for its level crossings, of which the 25 lying on the 7.2-kilometer section between Sasazuka and Sengawa stations are classified by the Tokyo Metropolitan Government Construction Bureau as "akazu no fumikiri" as they are closed to road traffic for over 40 minutes in an hour. The government has plans to remove these crossings by grade-separating this section of the line by 2022.