Yes traffic already sucks....
Ban all heavy vehicles and goods from expressways and restrict their timing on the road.
Increase all taxes of motorbikes to discourage motorbikes ownership. Ban from expressways as well.
Impose minimum price of a car to be at least 150k per unit to discourage those going for cheaper cars.
Make all buses to be double deckers so less on the road.
Road pricing to be more extensive.....install taxi meter like device in cars to calculate exact distance travelled to be charged.
Ban heavy vehicle on traffic on certain hour. Construction die.... HDB will need 5 year to built.
Best is increase all vehicle speed limit by 10km/hr for all road. Expressway to 100km/hour.
Then all expressway 1st and 2nd fast lane no heavy vehicle/G plate is allow if caught 12 demerit point and fine max $300.
All expressway min speed 90km/hr not like some place 70km/hr(LTA put camera make driver pressure) many jam brake to reduce speed from 90km/h to less than 70km/h cause more accident.