It is a popular mode of transportation for commuters working in Kuala Lumpur, as they can travel to the city without the hassle of traffic congestion.

[citation needed] The line is one of the components of the Klang Valley Integrated Transit System.

The line began as the Selangor Government Railway which connected Bukit Kuda just outside Klang to Kuala Lumpur, opened in September 1886.

The railway reached Kuala Kubu Bharu in 1894 and finally Port Klang in 1899.

⇄  KS02  KTM KL Sentral-Terminal Skypark Line Exit to Port Klang International Passenger Terminal to Pulau Ketam, Selangor, Malaysia & Dumai, Indonesia A new route for KTM Komuter services was introduced in preparation of the infrastructure upgrading works in the Klang Valley Double Tracking project in April 2016.

This 22 km stretch was the first portion of the Rawang-Ipoh double tracking and electrification project to become operational.

[citation needed] From 3 June 2018 until early 2019, Tanjung Malim–Port Klang Line services at three stations in downtown Kuala Lumpur – Putra, Bank Negara and the old Kuala Lumpur station, as well as Segambut were unavailable during off-peak hours, i.e. between 8 am and 6 pm, to facilitate track upgrading services.

During off-peak hours, trains will only shuttle between KL Sentral and Port Klang, and between Tanjung Malim and Kepong stations only.

Passengers can still connect to Kuala Lumpur city centre on the MRT Kajang Line at Muzium Negara, or on the LRT Kelana Jaya Line at Subang Jaya and Abdullah Hukum.

[8] During off-peak hours, trains will only shuttle between KL Sentral and Tanjung Malim.

Construction of Segambut 2 railway station was approved in August 2023, and it is expected to be completed by November 2025.