Bantan Line

The line began as a private venture. The Bantan Railway (播但鉄道, Bantan Tetsudō) opened its first section, the 29.6 km from Himeji north to Teramae, on 26 July 1894, bringing the original intermediate stations of Nozato, Kōro, Fukusaki, Amaji, Tsurui and Teramae into service. The company pushed on quickly: Teramae to Hase opened in January 1895, Hase to Ikuno that April, and Ikuno to Nii in August 1901. The Bantan Railway also built a short branch south from Himeji down to the harbour at Shikama (later Shikama-Kō, near present-day Himeji Port), opened in April 1895 to carry freight to and from the port.

In June 1903 the Sanyō Railway (山陽鉄道, Sanyō Tetsudō) acquired the whole of the Bantan Railway, and on 1 April 1906 it opened the final 13.8 km section from Nii north to Wadayama, adding Takeda and Wadayama stations and completing the through route that forms today's Bantan Line. The new owner held the line only briefly: under the Railway Nationalization Act, the Sanyō Railway was nationalised on 1 December 1906, and the route passed into the hands of the state railways. The Bantan Line had in fact been named in anticipation of that nationalisation.

Under state ownership the railway's reach was reorganised. The state railway line-naming scheme of 12 October 1909 formally designated the Bantan Line as running from Shikama through Himeji and Wadayama on to Kinosaki, so that for a time the line extended well beyond Wadayama along what is now the San'in coast. That arrangement did not last: on 1 March 1912 the Fukuchiyama–Wadayama and Kinosaki–Kasumi stretches were incorporated into the San'in Main Line, leaving the Bantan Line as the Shikama–Himeji–Wadayama route. The Shikama-Kō to Himeji section, built for port freight, remained part of the formally designated Bantan Line rather than a separate branch, and was commonly known as the Shikama-Kō Line.

Through the Japanese National Railways (JNR) decades the line was worked first by steam and then by diesel railcars, which began running on the Himeji–Teramae section in 1930 and were introduced more widely from 1961. The Bantan Line was notable for keeping steam locomotives in service unusually late — well after they had vanished from many neighbouring lines — and large numbers of railway enthusiasts gathered along it when steam was withdrawn in 1972 and again when locomotive-hauled passenger trains ended in March 1992. Signalling was modernised in the 1970s: automatic signalling reached Nibūno by 1972 and Wadayama by 1977, and centralised traffic control (CTC) was commissioned in February 1978.

By the 1980s the port traffic that had justified the Shikama-Kō branch had dwindled, and on 1 November 1986 the 5.6 km Shikama-Kō to Himeji section was closed, Kameyama, Shikama and Shikama-Kō stations were abolished, and freight service ended across the line. On 1 April 1987, with the break-up and privatisation of JNR, the Bantan Line passed to the West Japan Railway Company (JR West). The line's most visible modern change came on 14 March 1998, when the Himeji–Teramae section was electrified at 1,500 V DC; new 103-series 3500 subseries electric cars replaced the diesels there and the higher line speed cut the Himeji–Teramae journey by about seven minutes.

Today the Bantan Line is operated in two halves: electric local trains shuttle between Himeji and Teramae, while diesel railcars work the non-electrified Teramae–Wadayama section, with no local train running the full length of the line. The "Hamakaze" limited express, linking the Kinki region with the San'in coast, is the only through service over the whole line. The ICOCA smart-card area was extended to the Himeji–Teramae section in March 2016 and to Ikuno, Takeda and Wadayama stations in March 2021. The lightly used Teramae–Wadayama section, with a daily transport density below 2,000 passengers as of fiscal 2019, has since been named by JR West among its low-traffic local sections whose future is under discussion.

• 189426 July: the private Bantan Railway opens its first section, Himeji–Teramae (≈29.63 km), with Nozato, Kōro, Fukusaki, Amaji, Tsurui and Teramae stations.
• 189515 January: Teramae–Hase opens; 17 April: Hase–Ikuno opens and the Bantan Railway's Shikama (port) branch from Himeji opens.
• 190129 August: the Bantan Railway opens Ikuno–Nii (≈8.35 km), with Nii station.
• 19031 June: the Sanyō Railway purchases all of the Bantan Railway's lines.
• 19061 April: the Sanyō Railway opens Nii–Wadayama (≈13.84 km), with Takeda and Wadayama stations, completing the present-day Bantan Line.
• 19061 December: the Sanyō Railway is nationalised under the Railway Nationalization Act; the line becomes part of the state railways.
• 190912 October: the state railway line-naming scheme designates Shikama–Himeji–Wadayama–Kinosaki as the Bantan Line.
• 19121 March: the Fukuchiyama–Wadayama and Kinosaki–Kasumi sections are incorporated into the San'in Main Line; the Bantan Line becomes the Shikama–Himeji–Wadayama route.
• 19301 September: diesel railcar operation begins on the Himeji–Teramae section.
• 197215 February: automatic signalling is commissioned on Himeji–Nibūno; steam locomotives are withdrawn from the line this year, drawing many enthusiasts to the lineside.
• 197820 February: centralised traffic control (CTC) is commissioned on the line.
• 19861 November: the Shikama-Kō–Himeji section (5.6 km) is closed, Kameyama, Shikama and Shikama-Kō stations are abolished, and all freight service on the line ends.
• 19871 April: with the break-up and privatisation of Japanese National Railways, the line is transferred to the West Japan Railway Company (JR West).
• 199214 March: locomotive-hauled passenger (coach) trains are discontinued on the line, the last in a notably late survival.
• 199814 March: the Himeji–Teramae section is electrified at 1,500 V DC; 103-series 3500 subseries EMUs replace diesels and the journey time falls by about 7 minutes.
• 201626 March: the ICOCA IC-card area is extended to the Himeji–Teramae section.
• 202113 March: ICOCA becomes usable at Ikuno, Takeda and Wadayama stations on the Teramae–Wadayama section.