Seasonal Shinjuku Sazanami services operate at certain weekends between Shinjuku and Tateyama.
As of 12 March 2022, 5 outbound trains and 3 inbound trains are operated each day, except on Saturdays and holidays.[2] These trains stop at the following stations listed below:
A 189 series EMU on a Shinjuku Sazanami service in February 2007
Formations
Sazanami trains are formed as shown below, with car 1 at the Tokyo end.[2]
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
Reserved
Reserved
Reserved
Non-reserved
Non-reserved
9-car 255 series (No. 6 only)
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
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 Chikura.
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.[4]
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.[5] From the start of the 15 March 2014 timetable revision, the number of services was reduced to six return workings daily.[5]
^ ab 日本と世界の鉄道カタログ'97~'98 [Japan and World Railway Catalogue 1997-1998] (in Japanese). Japan: Seibido Publishing. 17 August 1997. pp. 147, 157. ISBN4-415-09254-3.
^2005年12月ダイヤ改正について [Details of December 2005 Timetable Revision] (PDF) (Press release) (in Japanese). East Japan Railway Company. 30 September 2005. Retrieved 25 June 2012.
^ ab房総特急 引き潮 高速道充実で利用者減少 [Boso limited expresses ebbing: Passenger numbers falling due to improved expressway network]. Tokyo Shimbun Web (in Japanese). Japan: The Chunichi Shimbun. 25 March 2015. Archived from the original on 26 March 2014. Retrieved 26 March 2014.