[jessaustin]

It has been a long time since I was in Singapore, but looking back it isn't obvious why it would be bad for cycling. Obviously one wouldn't use the elevated expressways, but there are lots of other streets of varying sizes with varying amounts of traffic (like Tokyo). Is there a law against taking the lane? Perhaps there just isn't a culture of cycling, so one would be the only one on the road? Just curious...

[jdsemrau]

It's road behaviour. Due to the high COE car owners feel an entitlement for the road. In addition people are driving selfish and are in general bad educated (comparing to Europe and Japan). See roads.sg for examples.