On September 14th, I visited the Tokyu Oimachi Line to photograph the 9000 Series, which features its original red line on the front.
The 9000 Series has been in regular service for nearly 40 years. It has been operating on the Oimachi Line since 1988 and was previously used on the Toyoko Line from 1986 to 2013. However, all 9000 Series trains would be replaced by the 5-carriage 6020 Series by 2027. As of September 2025, four sets (9003F, 9005F, 9007F, and 9011F) had already concluded their regular service.
Starting in April 2025, the original red line on the front was revived on three sets (9001F, 9013F, and 9015F).
As 9013F arrived, 9001F also came from Oimachi Station, and I also photographed the two juxtaposing.
I travelled by 9013F to Oimachi terminal once. Then, I took the same train from the start to the terminal.
I sat on a transverse seat and listened to the mechanical sound while travelling.
On that day, one more set with a red line, 9015F, was also in service, and I photographed it at Mizunokuchi Station.
9000 Series made me a railway lover because of its mechanical sound when departing from and arriving at stations.