Jelasin soal Runtuyan Jalur Kareta api di Jepang (J ka P)  dalam bahasa sunda dong

Jikkoku Cable Line (Izuhakone Railway)

Jimbō Line (Group name. Composed of Kōbe Line and Takarazuka Line. Hankyu Corporation)

Jōban Line (East Japan Railway Company)

Jōetsu Line (East Japan Railway Company)

Jōetsu Shinkansen (East Japan Railway Company)

Jōhana Line (West Japan Railway Company)

Jōhoku Line (Central Japan Railway Company (tracks and services), Tokai Transport Service (services) )

Jōmō Line (Jomo Electric Railway)

JR Kōbe Line (Nickname. West Japan Railway Company)

JR Kyōto Line (Nickname. West Japan Railway Company)

JR Takarazuka Line (Nickname. West Japan Railway Company)

JR Tōzai Line (West Japan Railway Company)

JR Yumesaki Line (Nickname. West Japan Railway Company)

Jukkokutōge Cable Car (Common name. Izuhakone Railway)

Kabe Line (West Japan Railway Company)

Kada Line (Nankai Electric Railway)

Kagoshima Main Line (Kyushu Railway Company)

Kaigan Line (Kobe Municipal Transportation Bureau)

Kaikyō Line (Hokkaido Railway Company)

Kakogawa Line (West Japan Railway Company)

Kamaishi Line (East Japan Railway Company)

Kamidaki Line (Toyama Chiho Railway)

Kamiiida Line (Common name. Transportation Bureau City of Nagoya)

Kamikōchi Line (Matsumoto Electric Railway)

Kamikumamoto Line (Kumamoto City Transportation Bureau)

Kanagawa Eastern Line (Sagami Railway, Tokyo Kyuko Electric Railway) Planned

Kanamachi Line (Keisei Electric Railway)

Kanazawa Seaside Line (Yokohama New Transit)

Kanden Tunnel Trolleybus (Common name. Kansai Electric Power Company)

Kansai Airport Line (Translation. West Japan Railway Company)

Kansai Kūkō Line (West Japan Railway Company)

Kansai Main Line (Central Japan Railway Company, West Japan Railway Company)

Karasuma Line (Kyoto Municipal Transportation Bureau)

Karasuyama Line (East Japan Railway Company)

Karatsu Line (Kyushu Railway Company)

Kasamatsu Cable (Common name. Tango Kairiku Kotsu)

Kashii Line (Kyushu Railway Company)

Kashima Line (East Japan Railway Company)

Kashima Railway Line (Kashima Railway) Closed

Kashima Rinkō Line (Kashima Rinkai Railway)

Katamachi Line (West Japan Railway Company)

Katano Line (Keihan Electric Railway)

Katsuyama Eiheiji Line (Echizen Railway)

Kawagoe Line (East Japan Railway Company)

Kawasaki Longitudinal Rapid Railway (Kawasaki City Transportation Bureau) Planned

Kawasaki Municipal Subway (Common name. Kawasaki City Transportation Bureau) Planned

Keihan Main Line (Keihan Electric Railway)

Keihin-Tōhoku Line (Common name. East Japan Railway Company)

Keikyū Main Line (Common name. Keihin Electric Express Railway)

Keiō Line (Keio Electric Railway)

Keiō New Line (Common name. Keio Electric Railway)

Keisei Main Line (Common name. Keisei Electric Railway)

Keishin Line (Keihan Electric Railway)

Keiyō Line (East Japan Railway Company)

Kengun Line (Kumamoto City Transportation Bureau)

Kesennuma Line (East Japan Railway Company)

Kibi Line (West Japan Railway Company)

Kikuchi Line (Kumamoto Electric Railway)

Kinokuni Line (Nickname. West Japan Railway Company)

Kintetsu Link Line (Sangi Railway)

Kisei Main Line (Central Japan Railway Company, West Japan Railway Company)

Kishigawa Line (Wakayama Electric Railway)

Kishin Line (West Japan Railway Company)

Kishū Railway Line (Kishu Railway)

Kisuki Line (West Japan Railway Company)

Kita-Alpes Line (Nickname. East Japan Railway Company, West Japan Railway Company)

Kita-Ayase Branch Line (Common name. Tokyo Metro)

Kita-Matsue Line (Ichibata Electric Railway)

Kitame Line (Common name. Shimabara Railway)

Kitakami Line (East Japan Railway Company)

Kitano Line (Keifuku Electric Railroad)

Kitaōji Line (Common name. Freight. Japan Freight Railway Company)

Kitto Line (Kyushu Railway Company)

JR Kōbe Line (Nickname. West Japan Railway Company)

Kōbe Main Line (Hankyu Corporation)

Kodomo-no-Kuni Line (Yokohama Minatomirai Railway Company (services), Tokyo Kyuko Electric Railway (tracks))

Kōen-Toshi Line (Kobe Electric Railway)

Kokura Line (Kitakyushu Urban Monorail)

Kokusai Bunka Kōen Toshi Line (Osaka Rapid Railway)

Kominato Railway Line (Kominato Railway)

Kosaka Line (Freight. Kosaka Smelting & Refining)

Kosaka Railway Kosaka Line (Freight. Common name. Kosaka Smelting & Refining)

Kosei Line (West Japan Railway Company)

Kōtō Line (Freight. Mizushima Rinkai Railway)

Kotohira Line (Takamatsu-Kotohira Electric Railroad)

Kōtoku Line (Shikoku Railway Company)

Koumi Line (East Japan Railway Company)

Kōya Line (Nankai Electric Railway)

Kūkō Line (Fukuoka City Transportation Bureau)

Kūkō Line (Keihin Electric Express Railway)

Kūkō Line (Nickname. Kyushu Railway Company)

Kūkō Line (Nankai Electric Railway)

Kurama Line (Eizan Electric Railway)

Kuramayama Cable Car (Kurama-dera Temple)

Kure Line (West Japan Railway Company)

Kureha Line (Toyama Chiho Railway)

Kurihama Line (Keihin Electric Express Railway)

Kurihara Den'en Railway Line (Kurihara Den'en Railway) Closed

Kurobe Cable Car (Common name. Tateyama Kurobe Kanko)

Kurobe Gorge Railway Main Line (Common name. Kurobe Gorge Railway)

Kururi Line (East Japan Railway Company)

Kusatsu Line (West Japan Railway Company)

Kuzuryū Line (Nickname. West Japan Railway Company)

JR Kyōto Line (Nickname. West Japan Railway Company)

Kyōto Main Line (Hankyu Corporation)

Kyūdai Main Line (Kyushu Railway Company)

Kyūshū Shinkansen (Kyushu Railway Company)

Lines just with numbers, such as "Line 1", are listed separately.

Linimo (Nickname. Aichi Rapid Transit)

Main Line (Hakodate City Transportation Bureau)

Main Line (Hanshin Electric Railway)

Main Line (Hiroshima Electric Railway)

Main Line (Keihin Electric Express Railway)

Main Line (Keisei Electric Railway)

Main Line (Kurobe Gorge Railway)

Main Line (Nagasaki Electric Tramway)

Main Line (Sanyo Electric Railway)

Main Line (Toyama Chiho Railway) (Railway)

Main Line (Toyama Chiho Railway) (Tramway)

Maizuru Line (West Japan Railway Company)

Man'yō Line (Nickname. Man'yo Line)

Marunouchi Branch Line (Tokyo Metro)

Maya Cable Line (Kobe City Urban Development)

Meguro Line (Tokyo Kyuko Electric Railway)

Meijō Line (Common name. Transportation Bureau City of Nagoya)

Meikō Line (Common name. Transportation Bureau City of Nagoya)

Meishō Line (Central Japan Railway Company)

Metro Seven (Operator undecided) Planned

Midōsuji Line (Osaka Municipal Transportation Bureau)

Mikajiri Line (Freight. Chichibu Railway)

Mikuni Awara Line (Echizen Railway)

Minami Line (Hiroshima Electric Railway)

Minami-Alpes Abt Line (Nickname. Oigawa Railway)

Minamime Line (Common name. Shimabara Railway)

Minatomirai 21 Line (Yokohama Minatomirai Railway Company)

Minatomirai Line (Common name. Yokohama Minatomirai Railway Company)

Mine Line (West Japan Railway Company)

Minobu Line (Central Japan Railway Company)

Misumi Line (Kyushu Railway Company)

Mita Line (Tokyo Metropolitan Bureau of Transportation)

Mitake Tozan Cable (Common name. Mitake Tozan Railway)

Mito Line (East Japan Railway Company)

Miyafuku Line (Kita-Kinki Tango Railway)

Miyajidake Line (Former name. Nishi-Nippon Railroad)

Miyajima Line (Hiroshima Electric Railway)

Miyazaki Airport Line (Translation. Kyushu Railway Company)

Miyazaki Kūkō Line (Kyushu Railway Company)

Miyazu Line (Kita-Kinki Tango Railway)

Mizue Line (Freight. Kanagawa Rinkai Railway)

Mizushima Main Line (Mizushima Rinkai Railway)

Monkey Park Monorail Line (Nagoya Railroad)

Mori to Mizu to Roman no Tetsudō (The Railway of Forest, Water and Romance) (Nickname. East Japan Railway Company)

Motoyama Branch Line (Common name. West Japan Railway Company)

Mt. Tsukuba Cable Car Line (Tsukuba Kanko Railway)

Mugi Line (Shikoku Railway Company)

Mukogawa Line (Hanshin Electric Railway)

Muroran Main Line (Hokkaido Railway Company)

Musashino Line (East Japan Railway Company)

Myōken Cable (Common name. Nose Electric Railway)

Myōken Line (Nose Electric Railway)

Nagahori Tsurumi-Ryokuchi Line (Osaka Municipal Transportation Bureau)

Nagano Line (Nagano Electric Railway)

Nagano Shinkansen (Nickname. East Japan Railway Company)

Nagao Line (Takamatsu-Kotohira Electric Railroad)

Nagasaki Main Line (Kyushu Railway Company)

Nagoya (Jalur Nagoya) (Kintetsu Corporation)

Nagoya (Jalur Utama Nagoya) (Nagoya Railroad)

Nakamura Line (Tosa Kuroshio Railway)

Nakanoshima Line (Keihan Electric Railway) Under construction

Namboku Line (Kobe Rapid Railway (services) )

Namboku Line (Sapporo City Transportation Bureau)

Namboku Line (Sendai City Transportation Bureau)

Nambu Line (East Japan Railway Company)

Nambu Branch Line (Common name. East Japan Railway Company)

Nan Line (South Line) (Freight. Akita Rinkai Railway)

Nanakuma Line (Fukuoka City Transportation Bureau)

Nanao Line (West Japan Railway Company)

Naniwasuji Line (Operator undecided) Planned

Nankai Main Line (Nankai Electric Railway)

Nankō Line (Freight. Nagoya Rinkai Railway)

Nankō Port Town Line (Osaka Municipal Transportation Bureau)

Nankō-Minato-Ku Link Line (New Tram Technoport Line) (Osaka Municipal Transportation Bureau)

Nankō-Minato-Ku Link Line (Technoport Line) (Osaka Municipal Transportation Bureau)

Nara Line (West Japan Railway Company)

Narita Line (East Japan Railway Company)

Narita New Rapid Railway Line (Keisei Electric Railway (services), Narita Rapid Rail Access (tracks) ) Under construction

Naruto Line (Shikoku Railway Company)

Negishi Line (East Japan Railway Company)

Nemuro Main Line (Hokkaido Railway Company)

New Shuttle (Nickname. Saitama New Urban Transit)

Nichinan Line (Kyushu Railway Company)

Nihonkai Jūkan Line (Group name. Composed of JR lines running on the Sea of Japan coast. East Japan Railway Company, West Japan Railway Company)

Nikkō Line (East Japan Railway Company)