The Sakurajima Line (桜島線, Sakurajima-sen) is a railway line in Osaka, Japan, operated by West Japan Railway Company (JR West) connecting Nishikujō Station to Sakurajima Station. It is also referred to as the JR Yumesaki Line (JRゆめ咲線). The entire line is within Konohana-ku, Osaka, and connects the Osaka Loop Line to Universal Studios Japan (USJ).
The nickname "Yumesaki Line" was determined in a public poll upon the opening of USJ and the Universal City station. While it was not the first choice, its pleasant sound together with the vision of the area around the Sakurajima Line and USJ being a place where Osaka's dreams were continuing to be born made it the selected choice.
The line is used primarily by a mix of factory workers and tourists. There is also freight traffic operating between Suita and Ajikawaguchi.
In addition to trains that operate only on the Sakurajima Line itself, there are also direct services from Tennōji, Kyōbashi, and Osaka stations that alternate during non-peak times. Also, during peak travel seasons, seasonal trains (such as the Universal Express limited express service) will run through to/from the Hokuriku Main Line. However, as the number of visitors to USJ has been on the decline in recent years, such special trains are now only rarely operated. In 2025 during the 2025 Expo there will be a temporary Train called the Expo liner from/to Shin Ōsaka and Sakurajima stopping at Ōsaka,Universal City, and Sakurajima. These trains operate once an hour
As a contingency in the event of a service disruption, the line has bi-directional signalling, meaning trains can operate in either direction on either line between Nishikujō and Universal City.
While Universal Express trains make their final stop at Universal City, there are no points for them to change directions at that station. Such trains proceed to Sakurajima and change directions there.
Originally the Nishikujō – Sakurajima section was not a separate line, but part of the Nishinari Line, which was operated by the private Nishinari Railway and featured a movable bridge over the Hokkō Canal on the Ajikawaguchi to Sakurajima section. A portion of the Nishinari Line became a part of the Osaka Loop Line when it was completed in 1961, with the rest becoming the Sakurajima Line. The line served as a commuter route for workers in factories along the line as well as for freight, with limited off-peak patronage. This continued until the construction of USJ, which resulted in tourists being the main users of the line.
From the end of operations on the Katsuki Line on April 1, 1985, until the beginning of service on the Miyazaki Kūkō Line on July 18, 1996, the Sakurajima Line was the shortest passenger line among the JR Group companies. (Including freight lines, the shortest at the time was the Shinminato Line in Toyama Prefecture.)
Sakurajima Station was relocated on April 1, 1999, the lift-bridge on the former line being unused since the canal was filled in the 1990s.
When service began at Universal City Station, there were requests by local residents and business owners for a new station ("Haruhinode Station") between Nishikujō and Ajikawaguchi stations. However, not enough demand was forecast and the requests were not met.
April 5, 1898: Nishinari Railway from Osaka to Ajikawaguchi (5.79 km) opens
December 1, 1904: Leased by Railway Operation Bureau
April 1, 1905: Ajikawaguchi - Tenpōzan section (1.61 km) opens; leased at same time
December 1, 1906: Nationalized by JGR
October 12, 1909: Line named "Nishinari Line" by JGR
April 15, 1910: Sakurajima Station opens; Sakurajima - Tenpozan section demolished
May 1, 1934: Gasoline multiple unit (MU) service begins, using KiHa 42000 train cars
January 29, 1940: Gasoline MU derailment and fire at Ajikawaguchi station kills 189 and injures 69