The long list of svs that has more non aircon than aircon buses,
oftenly many are very packed during peak hrs
6, 35, 37, 90, 91, 94, 125, 151, 186, 192, 193, 200, 246, 249, 251,
252, 254, 255, 257
Of which, Sv 186 serves CBD, some like 151 are long haul rts
serving Hougang and NUS