All SBST airport services should be WAB
.
Service 100 should have already became WAB but due to the
constraints at the parking berth at Serangoon Interchange. Same for
service 25 at Bedok Interchange.
Think maybe service 163 might get WAB too. Noticed that some bus
stops along Fernvale recently got upgraded with ramps being built
to the housing estates. Service 119 should also gets WAB too as it
loops at Kovan Hub
.
For SMRT services to be WAB, maybe services 67, 171, 172, 189,
307, 811, 851, 854... 