High Quality Content by WIKIPEDIA articles! Buona Vista MRT Station (EW21/CC22) is a Mass Rapid Transit station located in the town of Buona Vista in Singapore, that is part of the East West Line and the Circle Line, and served as an interchange between the two lines. It is the second station complex in Singapore (after Paya Lebar MRT Station) that serves both an above-ground line (East West) and an underground line (Circle). Both lines are operated by SMRT Corporation.