Sazanami (train)
Japanese limited express train service
title: "Sazanami (train)" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["named-passenger-trains-of-japan", "east-japan-railway-company", "railway-services-introduced-in-1972", "1972-establishments-in-japan"] description: "Japanese limited express train service" topic_path: "geography/japan" source: "https://en.wikipedia.org/wiki/Sazanami_(train)" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Japanese limited express train service ::
::data[format=table title="Infobox rail service"]
| Field | Value |
|---|---|
| name | Sazanami |
| image | E257-500 Sazanami Kaihin-Makuhari 20061021.JPG |
| image_width | 300px |
| caption | A E257-500 series EMU on a Sazanami service in October 2006 |
| type | Limited express |
| status | Operational |
| locale | Chiba Prefecture |
| first | 15 July 1972 |
| operator | JR East |
| formeroperator | JNR |
| start | |
| end | |
| distance | 128.9 km |
| line_used | Keiyo Line, Uchibo Line, Chūō Line, Sobu Line |
| catering | Trolley service |
| stock | E257-500 series EMUs |
| gauge | |
| el | 1,500 V DC overhead |
| speed | 120 km/h |
| :: |
| name = Sazanami | image = E257-500 Sazanami Kaihin-Makuhari 20061021.JPG | image_width = 300px | caption = A E257-500 series EMU on a Sazanami service in October 2006 | type = Limited express | status = Operational | locale = Chiba Prefecture | predecessor = | first = 15 July 1972 | last = | successor = | operator = JR East | formeroperator= JNR | ridership = | start = | stops = | end = | distance = 128.9 km | journeytime = | frequency = | trainnumber = | line_used = Keiyo Line, Uchibo Line, Chūō Line, Sobu Line | class = | access = | seating = | catering = Trolley service | observation = | entertainment= | otherfacilities= | stock = E257-500 series EMUs | gauge = | el = 1,500 V DC overhead | speed = 120 km/h | owners = | routenumber = | map = | map_state =
The Sazanami is a limited express train service in Japan operated by East Japan Railway Company (JR East). It runs between and via the Keiyo Line and Uchibō Line.
Seasonal Shinjuku Sazanami services operate "mainly on weekends and holidays when service is heavy" between Shinjuku and Tateyama via the Chūō Line and Sōbu Line. As of March 2024, trains no longer stop at or .
As of 12 March 2022, 5 outbound trains and 3 inbound trains are operated each day, except on Saturdays and holidays. These trains stop at the following stations listed below:
Tokyo - Soga - Goi - (Anegasaki) - Kisarazu - Kimitsu
Rolling stock
- E257-500 series 5-car EMUs File:E257-500 NB-13 - Shinjuku Sazanami - Akihabara 20100502.jpg|A E257-500 series EMU on a Shinjuku Sazanami service in May 2010 at Akihabara Station
Former rolling stock
- 183/189 series 9-car EMUs
- 255 series 9-car EMUs
File:Jr183-snjsazanami-skw-kiw.jpg|A 189 series EMU on a Shinjuku Sazanami service in February 2007 File:JR East 255 Limited Express Sazanami.jpg|A 255 series EMU on a Sazanami service in March 2008
Formations
Sazanami trains are formed as shown below, with car 1 at the Tokyo end.
5-car E257 series
::data[format=table]
| Car No. | 1 | 2 | 3 | 4 | 5 | Numbering | Accommodation |
|---|---|---|---|---|---|---|---|
| KuHa E256-500 | MoHa E257-1500 | MoHa E256-500 | MoHa E257-500 | KuHa E257-500 | |||
| Reserved | Reserved | Reserved | Non-reserved | Non-reserved | |||
| :: |
9-car 255 series (No. 6 only)
::data[format=table]
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Numbering | Accommodation |
|---|---|---|---|---|---|---|---|---|---|---|---|
| KuHa 254 | MoHa 254 | MoHa 255 | SaRo 255 | SaHa 254 | SaHa 255 | MoHa 254 | MoHa 255 | KuHa 255 | |||
| Reserved | Reserved | Reserved | Green | Reserved | Non-reserved | Non-reserved | Non-reserved | Non-reserved | |||
| :: |
History
- 15 July 1972 - Sazanami service starts coinciding with opening of the underground Sōbu Line platforms at Tokyo Station.
- 16 March 1991 - Sazanami service are rerouted via the Keiyo Line from Tokyo.
- 2 July 1993 - 255 series EMUs are introduced on View Sazanami services from Tokyo to .
- 16 October 2004 - E257-500 series EMUs are introduced.
- 10 December 2005 - The View Sazanami name is discontinued, and all services are made entirely no-smoking.
The opening of the Tokyo Bay Aqua-Line road across the Tokyo Bay in 1997 saw increased competition from long-distance bus services offering cheaper fares, resulting in decreasing ridership figures on the Sazanami services. From the start of the 15 March 2014 timetable revision, the number of services was reduced to six return workings daily.
References
References
- Kotsu Shimbun. (2008)
- "20231215_c01.pdf".
- [https://www.jreast.co.jp/chiba/railinfo/train/sazanami.html 千葉を走る列車＞さざなみ：EAST JAPAN RAILWAY COMPANY Chiba branch (Japanese)]
- Seibido Publishing. (17 August 1997)
- {{cite press release. East Japan Railway Company. link. (30 September 2005)
- link. (25 March 2015). Tokyo Shimbun Web. The Chunichi Shimbun
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