There's really used to be double decker on svc 5, so I agreed
with you that the height restriction of the KTM bridge near Rail
Mall is 4.5m.
There's also other roads in S'pore where there are height
restrictions beside the 2 mentioned above, eg. are:
Stadium Rd under the Medeka bridge (3.3m), affected are SBST
16
Changi Airport T1 & T2 basement (3.8m), affected are SBST 24,
27, 36 & 53
slip rd of CTE/Braddell Rd leading to Lor Chuan (restriction
unknown), affected are SBST 73, 105 & 159
Tibs and CSS buses are not affected as they don't have any double
deckers.
