Ryongsong Line#San'um Branch

{{Short description|Railway line in North Korea}}

{{Infobox rail line

| box_width = auto

| name = Ryongsŏng Line

| other_name =

| native_name = 룡성선 (龍城線)

| native_name_lang = ko

| color =

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| image =

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| type = Heavy rail, Passenger/freight rail
Intercity rail, Regional rail

| system =

| status = Operational

| locale = P'yŏngyang

| start = Sŏp'o

| end = Tongbungri

| stations = 4

| routes =

| daily_ridership =

| open = 1 November 1927

| close =

| owner = Korean State Railway

| operator = Korean State Railway

| character =

| depot = Ryongsŏng
(for Leader's trains)

| stock =

| linelength = {{convert|15.3|km|abbr=on}}

| tracklength =

| tracks = Single track

| gauge = {{Track gauge|sg|allk=on}}

| old_gauge =

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| electrification = 3000 V DC Overhead line

| speed =

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{{routemap

| inline=1

| map=

\\\\\\fCONTg\\~~ ~~ ~~P'yŏngŭi Line to P'yŏngyang

\\\\\\fSTR!~lELC\\

ELCa\\\\\\fSTR!~KBHFa\\~~0.0~~Sŏp'o

BL\\\\STR+l\STRq\fSTR!~STRr\\

BL\\\\STR\\fLSTR\\

BL\\\\SKRZ-Au\\fLSTR\\~~ ~~ ~~P'yŏngyang-Hyangsan Motorway

BL\WASSERq\WASSERq\WASSERq\hKRZWae\WASSER+r\fLSTRl\fLSTR+r\~~ ~~ ~~(bridge appx {{convert|100|m|ft|abbr=on}})

BL\\\KBSTa\STR\WCONTf\\fSTR\WORKS~~ ~~ ~~Ryongsŏng Bearing Factory

BL\KHSTaq\ABZq2!~STR+l\KRZhl!~STRc3\KRZhr\STR+r\\fSTR\~~6.6~~Residence No. 55

BL\tSTReq\STRr!~STRc1\ABZ2+4g\STR!~STRc3\STR\\fSTR\~~ ~~ ~~(viaduct appx {{convert|1225|m|ft|abbr=on}})

BL\\\STRc1\ABZg+4\TUNNEL1\\fSTR\~~ ~~ ~~(tunnel appx {{convert|245|m|ft|abbr=on}})

BL\\\\STR\STRl\SKRZ-Aoq\fSTR!~STR+r\~~ ~~ ~~(viaduct appx {{convert|360|m|ft|abbr=on}})

BL\\\\STR\WCONTg\\fSTR!~KHSTe\~~0.0~~San'um

BL\\\\DST\WASSER\\fSTR!~lELC\WORKS~~6.0~~Ryongsŏng~~Ryongsŏng Meat Processing Factory

BL\\\\STR\WASSER\\fCONTf\~~ ~~ ~~P'yŏngŭi Line to Sinŭiju

BL\\\WASSER+l\hKRZWae\WASSERr\\\~~ ~~ ~~Hapchang River

BL\\\WASSER\STR\\\\~~ ~~ ~~(bridge appx {{convert|95|m|ft|abbr=on}})

BL\\\WASSERl\hKRZWae\WASSER+r\\\~~ ~~ ~~(bridge appx {{convert|105|m|ft|abbr=on}})

BL\\\\BST\WASSER\\\WORKS~~13.1~~Saedong~~Maram Materials Factory

BL\\\WASSER+l\hKRZWae\WASSERr\\\~~ ~~ ~~(bridge appx {{convert|95|m|ft|abbr=on}})

BL\WASSERq\WASSERq\WASSERr\uSTR+l!~STR\uSTRq!~lELC\uCONTfq\\~~ ~~ ~~P'yŏngra Line to P'yŏngyang

ELCe\\uSTR+l\uSTRq!~KBHFaq\STRr\\\\~~15.3~~Tongbungri

\\uSTR!~lELC\\\\\\

\\uCONTf\\\\\\~~ ~~ ~~P'yŏngra Line to Rajin

}}

}}

{{Infobox Korean name|context=north|

hangul=룡성선|

hanja={{linktext|龍|城|線}}|

mr=Ryongsŏngsŏn|

rr=Ryongseongseon|

}}

The Ryongsŏng Line is an electrified standard-gauge secondary line of the Korean State Railway in P'yŏngyang, North Korea, running from Sŏp'o on the P'yŏngŭi Line to Tongbungri on the P'yŏngra Line.{{cite book| last=Kokubu| first=Hayato| title=将軍様の鉄道| date=January 2007| publisher=Shōgun-sama no Tetsudō| isbn=978-4-10-303731-6| page=29| language=ja}} From Ryongsŏng, this line also has a line connecting to the private railway station attached to Residence No. 55, the primary residence of Kim Jong-un. The maintenance facilities for the North Korean leaders' trains are also located at Ryongsŏng Station.