FEATURES Christmas-themed MRT trains running till December 31 NEWS North-South Line services delayed by melted insulator NEWS New signalling system causes delay on North-South Line NEWS Siganlling fault hits North-South and Downtown Lines NEWS North-South Line hit by two-hour delay NEWS North-South Line signalling tests will cause longer travel times NEWS SMRT says East-West Line will be more reliable NEWS North-South and Circle MRT lines show improved reliability