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Shonan Monorail
The Shonan Monorail is a suspended, SAFEGE-type monorail in the cities of Kamakura and Fujisawa in Kanagawa Prefecture, Japan. It is operated by the Shonan Monorail Co., Ltd. which is a subsidiary of Michinori Holdings. The line opened on 7 March 1970, the first suspended monorail in Japan. Trains run on a 6.6-kilometre (4.1 mi) line called the Enoshima Line. It is a mostly single-track railway with passing loops at most stations. The line is used by locals commuting to jobs in Tokyo or Yokohama and by tourists visiting the resort area of Enoshima.
During the 1960s, several monorail systems were tested across Japan. The Shonan Monorail was developed as a demonstration line for Mitsubishi Heavy Industries' suspended-type monorail system, which competed with Hitachi’s straddle-beam design. The project built upon data collected from the Higashiyama Park Monorail, a short suspended test line that operated within the Higashiyama Zoo and Botanical Gardens in Nagoya from 1964 to 1974. The route between Ōfuna station and the resort area of Enoshima was selected for its steep gradients and sharp curves, which could showcase suspended system’s performance. Mitsubishi also had an interest in the area, as the line could serve its nearby manufacturing plants and offices.
Construction utilized the combined resources of the Mitsubishi Group: the track and support towers were produced at the Yokohama Shipyard, rolling stock at the Mihara Machinery Works, electrical equipment by Mitsubishi Electric, and overall coordination by Mitsubishi Estate. The Shonan Monorail Company was established as a joint venture between Mitsubishi, the Keihin Kyuko Electric Railway (which owned the right of way), and Seibu Railway (which controlled the land surrounding Kataseyama Station).
The company applied for a construction license on 6 October 1965, which was approved later that month. The line was built above the former Keihin Kyuko Expressway, Japan’s first automobile-only road. Originally intended to host a conventional train from the Keihin Kyuko Electric Railway, the corridor was repurposed as a toll road and later transferred to the cities of Kamakura and Fujisawa. The route includes steep grades and tight curves—up to an 8.8% gradient and 25-metre (82 ft) minimum radius along the road. To balance performance and passenger comfort, the monorail’s design limited the gradient to 7.4%, and set a minimum curve radius of 100 metres (330 ft) on the main line, except for a single 90-metre (300 ft) curve near Ōfuna Station and 50-metre (160 ft) curves in station areas. Two tunnels were also constructed along the route: the 451-metre (1,480 ft) Kamakurayama Tunnel, which has a straight alignment where trains reach their top speed of 75 kilometres per hour (47 mph) and allows trains to bypass the steepest grades of the Keihin Kyuko Expressway; and the 205-metre (673 ft) Kataseyama Tunnel near the southern terminus. The line’s undulating profile has been compared to a roller coaster.
Construction on the first section between Ōfuna and Nishi-Kamakura began in 1967 and it opened on 7 March 1970 with two-car 300 series trains, followed by the extension to Shōnan-Enoshima on 1 July 1971. Due to growing ridership, three-car trains were introduced on 30 January 1975.
On 20 February 1990, a train collided with an aerial lift vehicle beneath the track near Kataseyama, seriously injuring the train operator but causing no passenger fatalities. Another incident occurred on 24 February 2008, when a train overran Nishi-Kamakura station due to a brake malfunction; no injuries occurred, and service resumed after safety modifications were made. Another collision with an aerial lift vehicle occurred on 7 November 2008, also without injuries.
In May 2015, majority ownership of the Shonan Monorail transferred from the Mitsubishi Group to Michinori Holdings. In 2018, the line began accepting IC fare cards such as Pasmo and Suica, and was twinned with Germany’s Wuppertal Schwebebahn, another suspended monorail and a popular tourist attraction.
The Shonan Monorail Enoshima Line (江の島線, Enoshima-sen) travels 6.6 km (4.1 mi) every seven to eight minutes between Ōfuna Station and Enoshima, making six stops. The average length of a single trip is 14 minutes. The line includes two tunnels (between Shōnan-Fukasawa and Nishi-Kamakura stations, and between Mejiroyamashita and Shōnan-Enoshima stations). The line's maintenance workshop is located at the Shonan Monorail Headquarters in Kamakura City.
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Shonan Monorail
The Shonan Monorail is a suspended, SAFEGE-type monorail in the cities of Kamakura and Fujisawa in Kanagawa Prefecture, Japan. It is operated by the Shonan Monorail Co., Ltd. which is a subsidiary of Michinori Holdings. The line opened on 7 March 1970, the first suspended monorail in Japan. Trains run on a 6.6-kilometre (4.1 mi) line called the Enoshima Line. It is a mostly single-track railway with passing loops at most stations. The line is used by locals commuting to jobs in Tokyo or Yokohama and by tourists visiting the resort area of Enoshima.
During the 1960s, several monorail systems were tested across Japan. The Shonan Monorail was developed as a demonstration line for Mitsubishi Heavy Industries' suspended-type monorail system, which competed with Hitachi’s straddle-beam design. The project built upon data collected from the Higashiyama Park Monorail, a short suspended test line that operated within the Higashiyama Zoo and Botanical Gardens in Nagoya from 1964 to 1974. The route between Ōfuna station and the resort area of Enoshima was selected for its steep gradients and sharp curves, which could showcase suspended system’s performance. Mitsubishi also had an interest in the area, as the line could serve its nearby manufacturing plants and offices.
Construction utilized the combined resources of the Mitsubishi Group: the track and support towers were produced at the Yokohama Shipyard, rolling stock at the Mihara Machinery Works, electrical equipment by Mitsubishi Electric, and overall coordination by Mitsubishi Estate. The Shonan Monorail Company was established as a joint venture between Mitsubishi, the Keihin Kyuko Electric Railway (which owned the right of way), and Seibu Railway (which controlled the land surrounding Kataseyama Station).
The company applied for a construction license on 6 October 1965, which was approved later that month. The line was built above the former Keihin Kyuko Expressway, Japan’s first automobile-only road. Originally intended to host a conventional train from the Keihin Kyuko Electric Railway, the corridor was repurposed as a toll road and later transferred to the cities of Kamakura and Fujisawa. The route includes steep grades and tight curves—up to an 8.8% gradient and 25-metre (82 ft) minimum radius along the road. To balance performance and passenger comfort, the monorail’s design limited the gradient to 7.4%, and set a minimum curve radius of 100 metres (330 ft) on the main line, except for a single 90-metre (300 ft) curve near Ōfuna Station and 50-metre (160 ft) curves in station areas. Two tunnels were also constructed along the route: the 451-metre (1,480 ft) Kamakurayama Tunnel, which has a straight alignment where trains reach their top speed of 75 kilometres per hour (47 mph) and allows trains to bypass the steepest grades of the Keihin Kyuko Expressway; and the 205-metre (673 ft) Kataseyama Tunnel near the southern terminus. The line’s undulating profile has been compared to a roller coaster.
Construction on the first section between Ōfuna and Nishi-Kamakura began in 1967 and it opened on 7 March 1970 with two-car 300 series trains, followed by the extension to Shōnan-Enoshima on 1 July 1971. Due to growing ridership, three-car trains were introduced on 30 January 1975.
On 20 February 1990, a train collided with an aerial lift vehicle beneath the track near Kataseyama, seriously injuring the train operator but causing no passenger fatalities. Another incident occurred on 24 February 2008, when a train overran Nishi-Kamakura station due to a brake malfunction; no injuries occurred, and service resumed after safety modifications were made. Another collision with an aerial lift vehicle occurred on 7 November 2008, also without injuries.
In May 2015, majority ownership of the Shonan Monorail transferred from the Mitsubishi Group to Michinori Holdings. In 2018, the line began accepting IC fare cards such as Pasmo and Suica, and was twinned with Germany’s Wuppertal Schwebebahn, another suspended monorail and a popular tourist attraction.
The Shonan Monorail Enoshima Line (江の島線, Enoshima-sen) travels 6.6 km (4.1 mi) every seven to eight minutes between Ōfuna Station and Enoshima, making six stops. The average length of a single trip is 14 minutes. The line includes two tunnels (between Shōnan-Fukasawa and Nishi-Kamakura stations, and between Mejiroyamashita and Shōnan-Enoshima stations). The line's maintenance workshop is located at the Shonan Monorail Headquarters in Kamakura City.