LTA to begin rolling out three-door double-deck buses in January Toggle share menu Advertisement LTA to begin rolling out three-door double-deck buses in January One of the Land Transport Authority's three-door double-deck buses at the Bulim Bus Depot. (Photo: Facebook/Land Transport Authority) 11 Jan 2021 07:56PM) Share this content Bookmark SINGAPORE: The Land Transport Authority (LTA) said on Monday (Jan 11) it would begin introducing three-door double-deck buses into Singapore's public bus fleet from the end of the month. A total of 100 of these buses will be progressively added to the fleet over the course of the year. Fifty buses from ST Engineering Land Systems (STELS) will be deployed from the end of January while the remaining buses from Alexander Dennis (Singapore) Services (ADS) will be deployed from the second quarter.