Tell this to those thousands of motorists struck in Tuas or Woodlands Checkpoints with fumes coming from all directions. The SG govt tried for many years.. including painting Johor Bahru as the Criminal Hub of Asia, and putting all their most useless and retarded civil servants to oversee checkpoints and make sure 3 hours jams are the norm.
And the SG govt failed miserably. Sporeans are flocking into Malaysia and spending like Kings. I was struck in the jam while returning to Singapore via Tuas @ 3am just now. Good thing is that jam lastly "only" 30 minutes
God Bless Singapore!
Traffic jam is costly in terms of time and health (at 12am - 6am the body is clocked to undergo self-repair), on top of wear and tear on the car. Unless you have plenty of time, a big spender or do not mind the impact to your health, the overall cost of going into JB to save some tangible money is pretty high.
The key idea of strict border checking is to restrict the flow if wealth into JB and flow of crimes into SG. I would say the strategy is working quite well.