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{{Use dmy dates|date=March 2020}}
{{Use Indian English|date=January 2016}}

{{Infobox rail line
| box_width = 25em
| name = Chord Line
| other_name = Viluppuram - Trichy railway line
| native_name = கார்டு லைன்
| native_name_lang = ta
| color =
| logo =
| logo_width =
| logo_alt =
| image = Viluppuram Railway Junction Main Building.jpg
| image_width =
| image_alt =
| caption = Viluppuram railway station the starting point of Chord Line, Tamil Nadu
| type = [[Regional rail]]<br>[[Heavy rail]]<br>[[Light rail]]
| system =
| status = Operating
| locale = [[Tamil Nadu]]
| start = {{rws|Viluppuram Junction}} '''(VM)'''
| end = {{rws|Tiruchirappalli Junction}} '''(TPJ)'''
| stations = 29
| routes = 1
| daily_ridership =
| ridership2 =
| open = {{Start date and years ago|df=yes|1929|2|1}}
| close =
| owner = [[Indian Railways]]
| operator = [[Southern Railway zone]]
| character =
| depot = [[Diesel Loco Shed, Golden Rock|Golden Rock]]
| stock =
| linelength_km =
| linelength_mi =
| linelength = {{convert|178|km|abbr=on}}
| tracklength_km=
| tracklength_mi=
| tracklength =
| tracks = Double Line (Triple line between GOC and TPJ)
| gauge = {{RailGauge|1676mm}}
| old_gauge = {{RailGauge|1000mm}}
| load_gauge = {{convert|4725|x|3660|mm|ftin|abbr=on}} (BG)<ref name=gauge>{{cite book|title=Railway Track Engineering|year=2010|publisher=Tata McGraw Hill|location=New Delhi|isbn=978-0-07-068012-8|page=7|url=https://books.google.com/books?id=n6XrJJIxQTEC&q=loading+gauge+india&pg=PA7|author=J S Mundrey|edition=Fourth|access-date=1 January 2014}}</ref>
| minradius =
| racksystem =
| routenumber = 21/21A<ref>{{cite web|title=Trains at a Glance July 2013 - June 2014|url=http://www.indianrailways.gov.in/railwayboard/view_section.jsp?id=0,1,304,366,537|work=[[Indian Railways]]|access-date=1 January 2014}}</ref>
| linenumber =
| electrification = [[25 kV AC]] [[50 Hz]]
| speed_km/h =
| speed_mph =
| speed = {{convert|110|km/h|abbr=on}}
| elevation_m =
| elevation_ft =
| elevation =
| website = {{URL|www.sr.indianrailways.gov.in}}
| map = {{Chord Line, Tamil Nadu}}
| map_state = collapsed
}}
The Chord Line connects {{rws|Viluppuram Junction}} and {{rws|Tiruchirappalli Junction}} in Tamil Nadu. It is the shortest route connecting {{rws|Chennai Egmore}} and Trichy. This rail route is 40 km shorter than the main line.

== History ==
Until 1927, {{rws|Viluppuram Junction}} and {{rws|Tiruchirappalli Junction}} were only connected by [[Main Line, Tamil Nadu|Main line]] that traversed through [[Kumbakonam]] and [[Mayavaram]], which was {{convert|240|km}}. Hence, the need for shorter route arose and construction began on 22 August 1927 for a new railway line via {{rws|Virudhachalam Junction}} in phases. Initially, the stretch between {{rws|Viluppuram Junction}} and [[Virudhachalam]] were completed and opened on 1 December 1927, the [[Srirangam]] - {{rws|Golden Rock}} stretch on 22 August 1927, [[Bikshandarkoil]] - Srirangam stretch on 12 December 1927 and the entire stretch began its operations since 1 February 1929. This line gradually reduced the Madras - Colombo journey by around four hours.<ref name=timeline1>{{cite web|last=R. P. Saxena|title=Indian Railway History Time line|url=http://irse.bravehost.com/IRHTML.htm|work=Irse.bravehost.com|access-date=1 January 2014|archive-url=https://archive.today/20120714085533/http://irse.bravehost.com/IRHTML.htm|archive-date=14 July 2012|url-status=dead}}</ref>

== Gauge conversions ==
The conversion from metre gauge to broad gauge was effected during 1992-93 and completed during September 1998.<ref name=cagtpj>{{cite web|title=Works And Contract Management|url=http://cag.gov.in/reports/railways/2004_8/chapter3.htm|work=[[Comptroller and Auditor General of India]]|access-date=1 January 2014|url-status=dead|archive-url=https://web.archive.org/web/20140101230331/http://cag.gov.in/reports/railways/2004_8/chapter3.htm|archive-date=1 January 2014}}</ref>

== Electrification ==
This stretch was proposed for electrification phase by phase by [[Central Organisation for Railway Electrification|CORE]]. The electrification was completed during 2010.<ref name=chdele>{{cite news|title=Electrification work from Villupuram to Tiruchi completed: E. Ahamed|url=http://www.thehindu.com/news/cities/Tiruchirapalli/article79540.ece|access-date=1 January 2014|newspaper=[[The Hindu]]|date=12 January 2010}}</ref>

==Operations==

=== Passenger services ===
The line experiences a heaviest traffic<ref name="chordtraffic">{{cite news|last=R.Rajaram|title=Dindigul-Villupuram project set to cross another milestone|url=http://www.thehindu.com/news/cities/Tiruchirapalli/dindigulvillupuram-project-set-to-cross-another-milestone/article4717520.ece|access-date=1 January 2014|newspaper=[[The Hindu]]|date=15 May 2013}}</ref> handling about 30 passenger and 56 express trains passing through every day in addition to goods train, particularly during night.<ref name="30psgr">{{cite news|last=R.Rajaram|title=Tiruchi-Chennai line to get decongested|url=http://www.thehindu.com/news/cities/Tiruchirapalli/tiruchichennai-line-to-get-decongested/article4901303.ece|access-date=1 January 2014|newspaper=[[The Hindu]]|date=10 July 2010}}</ref><ref name="tpjdoub">{{cite news|title=Doubling work on 25-km stretch completed in Trichy division|url=http://articles.timesofindia.indiatimes.com/2013-05-16/madurai/39309354_1_trichy-division-doubling-work-railway-line|archive-url=https://web.archive.org/web/20131227200258/http://articles.timesofindia.indiatimes.com/2013-05-16/madurai/39309354_1_trichy-division-doubling-work-railway-line|url-status=dead|archive-date=27 December 2013|access-date=1 January 2014|newspaper=[[The Times of India]]|date=16 May 2013}}</ref><ref name="tpjdnpa">{{cite news|title=Kallakudi Palanganatham-Ariyalur railway line nearing completion|url=http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/kallakudi-palanganathamariyalur-railway-line-nearing-completion/article5027784.ece|access-date=1 January 2014|newspaper=[[The Hindu]]|date=16 August 2013}}</ref>

Despite the fact that multiple south Tamil Nadu bound trains pass via chord line, there are no 'A' grade stations in the chord line between Trichy and Villupuram.

=== Freight services ===
The line has a number of Industrial establishments<ref name="divnhist">{{cite web|title=Southern Railway - Tiruchchirappalli Division|url=http://www.sr.indianrailways.gov.in/uploads/files/1359956335265-SOUTHERN%20RAILWAY.pdf|work=[[Southern Railway zone]]|access-date=1 January 2014}}</ref> which utilises their nearby railway stations for their logistics and transports such as [[Golden Rock Railway Workshop|Central Workshop]] (Golden Rock), Cement and gypsum factories at [[Trichy]], [[Perambalur]] and [[Ariyalur]],<ref name="ary">{{cite web|title=Analysis of alternatives|url=http://www.tnrsp.com/cea15.pdf|work=Tamil Nadu Road Sector Project|access-date=1 January 2014|page=33|url-status=dead|archive-url=https://web.archive.org/web/20160303234111/http://www.tnrsp.com/cea15.pdf|archive-date=3 March 2016}}</ref><ref name="kikprl1">{{cite news|last=M. V. L. Manikantan|title=Proposed Karaikal-Peralam line to boost freight traffic|url=http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/proposed-karaikalperalam-line-to-boost-freight-traffic/article2733666.ece|access-date=1 January 2014|newspaper=[[The Hindu]]|date=21 December 2013}}</ref><ref name="kikrail2">{{cite web|last=T. E. Raja Simhan|title=Karaikal scores high on rail connectivity|url=http://www.thehindubusinessline.com/todays-paper/tp-logistics/karaikal-scores-high-on-rail-connectivity/article982642.ece|work=[[The Hindu]]|publisher=[[Business Line]]|access-date=1 January 2014|date=1 February 2010}}</ref> and the Sugar factories at [[Villupuram]] and [[Vridhachalam]],<ref name="cotnpm1">{{cite book|title=Gazetteer of South India|year=2002|publisher=Mittal Publications|location=[[New Delhi]]|page=127|url=https://books.google.com/books?id=vERnljM1uiEC|author=W. Francis|author2=Frederick Nicholson |author3=C. S. Middlemiss |author4=C. A. Barber |author5=E. Thurston |author6=G. H. Stuart |access-date=1 January 2014}}</ref>

==References==
{{reflist}}

==External links==
* [http://www.sr.indianrailways.gov.in Southern Railways - Official Website]

{{Railways in Southern India}}

[[Category:Trichy railway division|*]]
[[Category:5 ft 6 in gauge railways in India]]
[[Category:Railway lines opened in 1929]]
[[Category:Transport in Tiruchirappalli]]

Chord Line, Tamil Nadu - Revision history

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