Wednesday, 20 October 2021

An Old Sluice on the Keikyu Line

Set 1508 of the EMU Keikyu 1500 series travels on the Daishi line 

It's late-October already. Time really flies. The maximum daytime temperature is around 20 degrees Celsius... very pleasant season. I went for a walk along to the Keikyu line with the warm autumn sun on my back.

I found an old water gate named Kawasaki-kakoh Sluice located at the Tama River. It was built by the ex-Home Ministry in 1928 based on the canal and harbor project plan drawn up at that time. This gargantuan development project was unfortunately stopped due to WWII, but the sluice was preserved. It's valued architecture, and designated as National Registered Cultural Properties in 1998. We can see eye-catching stone carvings of local fruits such as pears, grapes and peaches on the top. The design of the sluice shows a lot of playfulness and humor.

To get to Kawasaki-kakoh Sluice, the nearest station is Minatocho on the Keikyu-Daishi line. The Daishi line is a short branch line. Connecting Keikyu-Kawasaki and Kojima-shinden stations, the route length is only 4.5 kilometers. The main fleet on the line is a 4-car train, the EMU 1500 series. 166 cars in total were built by Tokyu Sharyo and Kawasaki Heavy Industries from 1985 to 1993. The specifications of the early 5 sets (20 cars) are rather old, as they have steel bodies and DC motors with a field chopper control system. They are the oldest active group of the Keikyu trains, and mainly operated on the Daishi line.

I enjoyed the old sluice and the oldest train on the Keikyu-Daishi line.

Kawasaki-kakoh Sluice

Official information about the Keikyu trains (in Japanese):

Saturday, 16 October 2021

The Subway Green Line: Update

The EMU 10000 series arrives at Center-minami station on the subway Green line

Following the subway Blue line, let me update on how things are going on the subway Green line operated by the Transportation Bureau, City of Yokohama.

Like the Blue line, memorial plates are currently displayed on the Green line trains in commemoration of the 100th anniversary of the Transportation Bureau. A blue-colored rounded plate is seen on the front of the EMU 10000 series train. The 10000 series is the sole model on the line. They are short (15.6 meter-long) sized cars. 68 cars in total were built by Kawasaki Heavy Industries from 2008 to 2014.

The Transportation Bureau plans a long reorganization of the Green line trains due to increasing the number of passengers. One train is composed of four cars at the moment, but it will be a 6-car train in the fiscal year 2022. We can see the extension work of station platforms here and there on the Green line. 60 cars will be additionally built by the fiscal year 2024. The Transportation Bureau is taking action for the next hundred years.

For your information, the Green line is the newest subway route in Yokohama City. It was opened in 2008. Connecting Nakayama on the JR East Yokohama line and Hiyoshi on the Tokyu Toyoko line, its operating length is 13.1 kilometers. The electric system is 1,500 V DC overhead. The gauge size is 1,435 millimeters. Linear motor technology is adopted for the train driving system. You can see a special box, a "reaction plate," between the rails.

The 100th anniversary plate is displayed on the front of the EMU 10000 series

Official information about the rollingstock of the Transportation Bureau, City of Yokohama (in Japanese):

Tuesday, 12 October 2021

The 100th Anniversary of the Transportation Bureau

EMU 3000V series stands at Nakanodai station on the subway Blue line

On April 1st, 2021, the Transportation Bureau, City of Yokohama marked its 100th anniversary of public transportation. The Transportation Bureau began its tram operation in April, 1921 taking over the tram network from a private company. It, then, commenced public bus services in 1928. The tram lines were unfortunately abolished in April 1972 due to heavy traffic congestion, but the Transportation Bureau opened the first subway route named the Blue line in December, 1972.

In commemoration of the 100th anniversary, memorial stickers are displayed on the subway trains. For instance, a large rounded memorial sticker is seen on the front of the EMU 3000V series on the Blue line. The 3000V series is the latest model on the line. It was launched in 2017 to replace an old model, the 3000A series. Currently, only one set of the 6-car train is operated, but the Transportation Bureau plans to introduce six more sets by the fiscal year 2023. The 3000V series has similar technical specifications with those of previous models, but it has new equipment named the PQ monitoring bogie. This bogie has special sensors to measure axle load (P) and horizontal pressure (Q). The PQ data is used for evaluating derailment risk.

For your information, Yokohama is situated some 20 kilometers southwest of Tokyo. It has been developed as Tokyo's outport since the 19th century. This mega-city currently has a population of 3.7 million, which is the 2nd largest in Japan.

To be continued...

The 100th anniversary sticker is displayed on the front of the EMU 3000V series

Official promotional video, the Transportation Bureau, City of Yokohama, 2014:
Official website, the 100th anniversary of the Transportation Bureau, City of Yokohama (in Japanese):

Friday, 8 October 2021

Giant Panda Twins on the Keisei Line

Special plate to celebrate the twin giant pandas born, the EMU Keisei 3000 series

On June 23rd, the Tokyo Metropolitan Government announced that a giant panda, named Shin-shin, gave birth to twins at Ueno Zoo. One is male and the other is female. It was the first time that giant panda twins had been born there. The zoo has been soliciting names for the new-born pandas from the public. Their names will be announced in the middle of October. I anticipate that the giant panda twins will be introduced to the public next year.

To celebrate the twin giant pandas born, Keisei Electric Railway displayed a special plate on the front of their train, set 3025 of the EMU 3000 series, from June 28th to August 31st. Set 3025 is a 6-car train built by Tokyu Sharyo in 2008. As you know, the nearest railway station to Ueno Zoo is Keisei-Ueno on the Keisei line. The purpose of the special plate is to promote tourism to Ueno Zoo.

Four your information, the 3000 series is Keisei's standard commuter train, which was launched in 2002. Forty-eight sets (326 cars) were built by Tokyu Sharyo (present J-TREC) and Nippon Sharyo between 2002 and 2019. The 3000 series has an IGBT-VVVF (Insulated Gate Bipolar Transistor - variable frequency drive) inverter electric control system with 125 kW induction motors. The EMU Shinkensei-N800 series, Hokuso 7500 series, and Chiba New Town Railway 9200 series have the same technical specifications as the Keisei 3000 series.

I look forward to seeing giant panda twins at Ueno Zoo probably next year.

Set 3025 of the EMU Keisei 3000 series stands at Kohnodai station

Official information about the EMU Keisei 3000 series (in Japanese):
Official information about the rollingstock of Keisei Electric Railway (in Japanese):