Certain Premium services load patterns have changed due to the
following reasons:
1. More MRT stations opening
2. Introduction of more WAB buses which has reduced the sitting
capacity of certain services.
3. Premium 535,536,549,560,563 may have a chance of being
upgraded to double decker service or with an additional trip.
For additional trips, SBST has already done for
533,538,539,543,544,545,548,549,550,554,761
