The Strong Republic Transit System (SRTS) was a program initiated by President Gloria Macapagal Arroyo on June 14, 2003, aimed at integrating the various rail lines providing public transport in Metro Manila, Philippines.
[1] The SRTS project provided seven "links", i.e. interchange stations, where commuters can transfer from one line to another.
The Santa Mesa and Recto Link were added in April 2004, when the already-under-construction Line 2 became fully operational.
The closing of the loop has, as of 2015, almost been completed by extending Line 1 with five new stations, unlike originally outlined by the plan.
For ₱250, one can make unlimited rides per day on Lines 1-3 during one calendar week with the so-called Flash Pass Card.