On the early morning of 20th, an accident happened between Tobu-nerima and Shimo-akatsuka on Tobu Tojo Line, which affected lots of commuters using not only Tojo Lin e itself, but also lines Tokyo Metro Yurakucho and Fukutoshin Lines, Seibu Ikebukuro Line, Tokyu Toyoko Line, and Yokohama Minatomirai Railway Line including me.
My train, 6508 operation for Toyosu, stopped between Nakamurabashi and Nerima about 10 minutes to wait for an earlier train's departure from Nerima Station and 3 trains' passage stopping on the express track at the same section.
On that day a commuter semi express train for Ikebukuro, 4654, irregularly passed my train and came to Nerima Station earlier than mine. It was first time for me to see 6508 train was passed this commuter semi express train.