Define “built dividing area”:

1. Correct answer: A separation area which divides the road lengthwise by means of an elevated structure above the road way
2. The area along a roadway, in which road users can stop, park their vehicles or stand in for refreshment
3. Any area that is marked on the road on which it is forbidden to drive
4. Any part of the road (pavement, hard shoulder, traffic island) which is elevated above the road way.

WhyA built median divides the road lengthwise and is raised above the roadway: a kerb, barrier or concrete divider. A painted strip doesn't count as built.