railroad.wikisort.org - Train

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 Bōsō Peninsula in Chiba Prefecture.

Shiosai

A 255 series EMU on a Shiosai service in June 2021
Overview
Service type	Limited express
Locale	Sōbu Main Line
First service	10 March 1975
Current operator(s)	JR East
Former operator(s)	JNR
Route
Termini	Tokyo Chōshi
Distance travelled	120.5 km (74.9 mi)
On-board services
Catering facilities	Trolley service
Technical
Rolling stock	255 series, E257-500 series EMUs
Track gauge	1,067 mm (3 ft 6 in)
Electrification	1,500 V DC overhead
Operating speed	130 km/h (80 mph)

Station stops

Shiosai services operate over the Sōbu Main Line, stopping at the stations listed below. No services operate as "Local" all-stations services in any section; this characteristic is different from that of Wakashio ltd.exp..[1][2][3]

Tokyo - Kinshichō - Chiba - Sakura - Yachimata - Narutō - Yokoshiba - Yōkaichiba - Asahi - Iioka - Chōshi

• No.1 & 12 trains also stop at Funabashi station.
• No.2, 4 & 13 trains also stop at Yotsukaidō station.

Rolling stock

• 255 series 9-car EMUs (since 10 December 2005)
• E257-500 series 5/10-car EMUs

Shiosai services are operated using Makuhari-based 9-car 255 series EMU and 10-car E257-500 series EMU formations. The E257-500 series formations have no Green (first class) cars.[4][2]

Past rolling stock

• 183 series EMUs (10 March 1975 – 2005)

Formations

Trains are formed as shown below, with car 1 at the Tokyo end.[1][5]

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

As of 2019, cars no. 2 and 3 are reserved on some services.[2]

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	Reserved	Non-reserved	Non-reserved	Non-reserved

Past formations

Trains were originally formed of 9-car 183 series EMUs, including one Green car, or 6-car sets with no Green car,[6] but from December 1994, services were formed of 8-car 183 series sets with the Green car removed, as shown below.[7][8]

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

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.[8]

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,[9] and the remaining Inubō express services were discontinued and absorbed into the Shiosai services, giving seven return workings daily.[8]

From the start of the revised timetable on 10 December 2005, 255 series 9-car EMUs were introduced on Shiosai services.[5] From the same date, services were made entirely no-smoking.[5]

From the start of the 14 March 2015 timetable revision, all Shiosai services started and terminated at Tokyo Station, with no services operating from Shinjuku.[10]

See also

• List of named passenger trains of Japan

References

External links

Wikimedia Commons has media related to Shiosai.

• JR East 255 series Shiosai/Wakashio/Sazanami (in Japanese)
• JR East E257 series Wakashio/Sazanami/Shiosai/Ayame (in Japanese)

---