SBS Transit City Direct Bus Service 655
SBS Transit City Direct Service 655 is a Weekday Peak Hour City Direct service between West Coast and the CBD, passing through
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Bus
SBS Transit Bus Service 107
SBS Transit Bus Service 107 is a trunk service plying between Hougang Central Int and Shenton Way Ter, passing through
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SBS Transit Bus Service 8
SBS Transit Bus Service 8 is a trunk route connecting Tampines and Toa Payoh through Kaki Bukit and MacPherson. Along
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SBS Transit Express Bus Service 30e
SBS Transit Express Bus Service 30e is an express variant of Service 30, plying between Bedok and Pasir Panjang. It
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SMRT Bus Service 176
SMRT Bus Service 176 is a trunk route linking Bukit Panjang Interchange and Bukit Merah Interchange, passing through Upper Bukit Timah, Hillview, Bukit
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Selective Catalytic Reduction (SCR)
Selective Catalytic Reduction, or SCR, is one of two nitrogen oxide (NOx) emissions reduction technique used in diesel engines, the other being Exhaust Gas Recirculation (EGR). It involves the conversion of nitrogen oxides (NOx) into atmospheric nitrogen and water vapor through using diesel exhaust fluids as a catalyst.
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(Defunct) Peak Period Short Service 812P
Peak Period Short Service 812P was a PPSS bus route from Yishun Central and looping at Yishun Avenue 3, passing through Yishun
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Tower Transit City Direct Bus Service 663
Tower Transit City Direct Service 663 is a Weekday Peak Hour City Direct Service between Yishun and the CBD, passing through Yishun
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Tower Transit Bus Service 177
Tower Transit Bus Service 177 is a peak-hour trunk route operating from Bukit Batok and looping at Bukit Panjang, passing through Hillview,
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SBS Transit Feeder Bus Service 269A
SBS Transit Bus Service 269A is a Short-Trip Service variant of Feeder Bus Service 269. The route operates from Ang Mo Kio
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