The Shiosai (しおさい) is a limited express train service in Japan operated by East Japan Railway Company (JR East). It runs from Tokyo and Shinjuku to Chōshi on the Boso Peninsula in Chiba Prefecture.
Station stops
Shiosai services operate over the Sōbu Main Line, stopping at the stations listed below. Some services operate as "Local" all-stations services between Narutō and Chōshi.[1]
Tokyo - Kinshichō - Chiba - Sakura - Yachimata - Narutō - Yokoshiba - Yōkaichiba - Asahi - Iioka - Chōshi
One evening up Shiosai service (Shiosai 16) is extended to Shinjuku, calling at Akihabara after Kinshichō.[1] This train then returns as the down Home Liner Chiba 3 commuter service.[2]
Rolling stock
E257-500 series 5-car set on a Shiosai service, January 2012
Shiosai services are operated using Makuhari-based 9-car 255 series EMU and 5- or 10-car E257-500 series EMU formations. The E257-500 series formations have no Green (first class) cars.[2]
Past rolling stock
Formations
Trains are formed as shown below, with car 1 at the Tokyo end.[2][3]
9-car 255 series
|
Car No.
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
|
Numbering
|
KuHa 254
|
MoHa 254
|
MoHa 255
|
SaRo 255
|
SaHa 254
|
SaHa 255
|
MoHa 254
|
MoHa 255
|
KuHa 255
|
|
Accommodation
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Green
|
Reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
5-car E257 series
|
Car No.
|
1
|
2
|
3
|
4
|
5
|
|
Numbering
|
KuHa E256-500
|
MoHa E257-1500
|
MoHa E256-500
|
MoHa E257-500
|
KuHa E257-500
|
|
Accommodation
|
Non-reserved
|
Reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
5+5-car E257 series
|
Car No.
|
1
|
2
|
3
|
4
|
5
|
|
6
|
7
|
8
|
9
|
10
|
|
Numbering
|
KuHa E256-500
|
MoHa E257-1500
|
MoHa E256-500
|
MoHa E257-500
|
KuHa E257-500
|
|
KuHa E256-500
|
MoHa E257-1500
|
MoHa E256-500
|
MoHa E257-500
|
KuHa E257-500
|
|
Accommodation
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Past formations
183 series EMU on a Shiosai service, May 2005
Trains were originally formed of 9-car 183 series EMUs, including one Green car, or 6-car sets with no Green car,[4] but from December 1994, services were formed of 8-car 183 series sets with the Green car removed, as shown below.[5][6]
8-car 183 series
|
Car No.
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
|
Accommodation
|
Reserved
|
Reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
Non-reserved
|
History
165 series EMU on a special Inubō revival working in November 2002
The Shiosai service was introduced from 10 March 1975 following the completion of electrification of the Sōbu Main Line in October 1974, using 9-car 183 series EMUs, replacing five of the seven daily diesel-powered Inubō (犬吠) express services that operated between Shinjuku/Ryōgoku and Chōshi.[6]
From the start of the November 1982 timetable revision, further 183 series EMUs were drafted in, displaced from Toki limited express services following the opening of the Joetsu Shinkansen,[7] and the remaining Inubō express services were discontinued and absorbed into the Shiosai services, giving seven return workings daily.[6]
From the start of the revised timetable on 10 December 2005, 255 series 9-car EMUs were introduced on Shiosai services.[3] From the same date, services were made entirely no-smoking.[3]
Future developments
From the start of the 14 March 2015 timetable revision, all Shiosai services will start and terminate at Tokyo Station, with no services operating from Shinjuku.[8]
See also
References
External links
-
JR East 255 series Shiosai/Wakashio/Sazanami (Japanese)
-
JR East E257 series Wakashio/Sazanami/Shiosai/Ayame (Japanese)
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