This document provides an overview of the Mass Rapid Transit (MRT) system in Malaysia. It discusses the background and design of the MRT, including its three lines that will form a circle and two radial lines around Kuala Lumpur. The MRT is intended to significantly increase Malaysia's insufficient rail network, integrate existing lines, and reduce traffic congestion. It will have elevated and underground stations and aims to provide an efficient, safe, and economical public transportation option that stimulates the economy and environment.