Downtown Line 3 is a segment of the Singapore Mass Rapid Transit (MRT) system, which opened on 21 October 2017. It extends the Downtown Line from Bukit Panjang to Expo, covering a distance of approximately 21 kilometers. This line features 16 stations, enhancing connectivity in the central region of Singapore. The line is designed to ease congestion on existing transport routes and provide faster access to key areas such as Marina Bay and Changi Business Park. With its modern trains and efficient service, Downtown Line 3 plays a crucial role in supporting the growing population and economy of Singapore.