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|Semboku Rapid Railway Line|
|Owner||Semboku Rapid Railway|
|Daily ridership||168,949 (daily 2015) |
|Opened||1 April 1971|
|Line length||14.3 km (8.9 mi)|
|Number of tracks||2|
|Track gauge||1,067 mm (3 ft 6 in)|
|Minimum radius||400 m|
|Electrification||1,500 V DC, overhead catenary|
|Operating speed||100 km/h (60 mph)|
The Semboku Rapid Railway Line (泉北高速鉄道線, Senboku Kōsoku Tetsudō-sen) is a railway line in Osaka Prefecture, Japan, operated by the private railway operator Semboku Rapid Railway (泉北高速鉄道, Senboku Kōsoku Tetsudō). The line connects Izumi-Chūō Station and Nakamozu Station, with through operations to and from the Nankai Kōya Line up to Namba Station in southern downtown Osaka.
Along with services inside the line, through trains also operate to the Nankai Kōya Line beyond Nakamozu to Namba.
All stations are located in Osaka Prefecture.
As of 1 April 2016 [update] , the railway operated a fleet of 108 electric multiple unit (EMU) vehicles, all based at Nakamozu Depot. 
From 27 January 2017, a new Semboku 12000 series EMU was introduced on Semboku Liner services. 
The section from Nakamozu to Izumigaoka opened on 1 April 1971, with 1,067 mm (3 ft 6 in) double track and electrified at 600 V DC.  The overhead line voltage was increased to 1,500 V DC from 7 October 1973, and the line was extended to Toga-Mikita on 7 December 1973. 
The line was extended to Komyoike on 20 August 1977, and to Izumi-Chuo on 1 April 1995. 
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Nakamozu Station is the name of two adjacent railway stations located in Kita-ku, Sakai, Osaka Prefecture, Japan. The above ground station is an interchange station operated jointly by the private Nankai Electric Railway and the Semboku Rapid Railway, and the underground station is operated by the Osaka Metro. The name of the station is difficult to read in kanji. The subway station shows the name in hiragana (なかもず) for information, but uses kanji for the official station name. The Semboku Rapid Railway Line uses both kanji and hiragana (中もず) on the destination signs at the stations and on the destination displays on the trains.
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Semboku Rapid Railway Co.,Ltd. is a company managing the commercial distribution center and the Semboku Rapid Railway in Osaka Prefecture, Japan. It was formerly known as third-sector company Osaka Prefectural Urban Development Co., Ltd. until June 30, 2014. Osaka Prefectural Urban Development and its subsidiary company were called the OTK Group together.
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