Toyoshimizu Signal Base, Railway signal base in Bifuka, Japan.
Toyoshimizu Signal Base is a railway signal facility on the Sōya Main Line in northern Hokkaido, Japan, located between Onnenai Station and Teshiogawa-Onsen Station. It controls train movements along this section of the line using a signaling system designed for single-track rural rail operations.
The facility was set up in October 1946, as part of Japan's effort to restore its railway network after World War Two. Its creation helped bring reliable train connections back to the sparsely populated areas of northern Hokkaido.
The signal base shows how Japanese railways blended British signaling techniques with modern systems for train control. Visitors can observe older and newer equipment working together to manage traffic along the line.
The base sits in a remote, rural stretch of northern Hokkaido, and the nearest reference points are the two stations on either side of it. Visitors should keep in mind that this is an operational railway facility and not a place open to the public.
Until 2005, the facility used traditional semaphore signals, a mechanical system that was once common across Japanese railways. After the switch to color light signals, this type of equipment became rare on active lines in Japan.
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