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West Line
Overview
Status	Operational
Termini	Chennai Central (Madras Central) Jolarpet
Stations	57
Service
Type	Suburban railway
System	Chennai Suburban Railway
Operator(s)	Southern Railway (India)
Depot(s)	Avadi
Technical
Line length	213 kilometres (132 mi) (69 km Suburban and 144 km MEMU)
Track length	526 kilometres (327 mi)
Number of tracks	4 (till Arakkonam) 2 (till Jolarpet)
Track gauge	Broad Gauge
Operating speed	90 km/h (maximum service speed)
Route map Legend Chennai Central MMC — Jolarpet 213 Jolarpettai Junction 206 Kettandapatti 202 Vaniyambadi Kettandapatti Block Hut 198 Vaniyambadi 193 Vinnamangalam Vaniyambadi Block Hut 189 Vinnamangalam 186 Ambur Vaniyambadi Block Hut 182 Ambur 176 Pachchakuppam 170 Melpadi 164 Valathoor 159 Mel-Alattur 154 Gudiyattam 148 Kavanoor 143 Virinchipuram 137 Latteri West South Line 129 Katpadi Junction 124 Seevur 118 Thiruvalam 112 Mukundarayapuram 105 Walajah Road 98 Marudhalam 94 Thalangai 90 Sholinghur 86 Mahendravady 80 Anavardhikhanpettai 76 Chitteri Melpakam West North Line South West Line 69 Arakkonam Junction Puliyamangalam Mosur 58 Thiruvalangadu 54 Manavur Kosasthalaiyar River Senji Panambakkam Kadambattur 45 Egattur 42 Tiruvallur Puttlur 36 Sevvapet Road 32 Veppampattu 29 Thiruninravur 26 Nemilichery 29 Pattabiram Military Siding Engineering Depot 28 Pattabiram Military Siding 25 Pattabiram 24 Hindu College 21 Avadi Red Line 18 Annanur 17 Thirumullaivoyal 15 Ambattur Red Line 14 Pattaravakkam 12 Korattur ICF Furnishing Factory 13 Anna Nagar West 12 Padi 9 Villivakkam Red Line 8 Perambur Loco Works 6 Perambur Carriage Works 5 Perambur Purple Line 4 Vyasarpadi Jeeva North Line to Chennai Beach 2 Basin Bridge 0 Chennai Central MMC

The West line of Chennai Suburban Railway is the second longest line running west from MGR Chennai Central (Madras Central) to Jolarpettai covering a distance of 213 km. Suburban services terminate at Arakkonam and MEMU services run to Jolarpettai. As of 2009, around 400,000 commuters travel every day on the 171 suburban services operated in the Arakkonam-Chennai central section.^[1]

• This section has 2 dedicated lines for suburban train operations and 2 main lines.
• Some fast local EMUs are operated along 3rd and 4th main lines during peak hours .
• 9-car EMU and 12-car EMU are operated in this sector.
• 5th and 6th rail lines are planned.

• There are 2 dedicated lines for suburban trains and 2 lines for mixed traffic.^[2]
• 9-car and 12-car EMU are operated in this sector.

• No Suburban EMU trains operate in this section of west line.
• Only 5 MEMU Service operated from Arakkonam to Katpadi.

• MEMU operates between Arakkonam and Jolarpet.