Services 451, 452 and 453 are limited-stop services providing direct connections to MRT stations for estates farther away from transport nodes.
Existing services 298X, 979X and 21X, which have a similar type of routing, will be renumbered as 454, 455 and 456, respectively.
The new connections were announced under the Bus Connectivity Enhancement Programme, which was launched in July 2024.
LTA said that close to 200,000 commuters have benefited from the programme, which is expected to cost S$900 million (US$694 million) over eight years.





