What urban form should Melbourne develop in the future?

.What are the pros and cons of each planning model from a social and environmental perspective?
.If you support the urban consolidation model, discuss how you could implement an urban consolidation policy in the low density suburb. In implementing the policy, how would you avoid the negative social and environmental consequences that you discussed in the first part of the essay?
.If you support the low density development model(urban expansion) how would you implement a low density policy in Melbourne’s outer suburbs. In implementing the policy, how would you avoid the negative social and environmental consequences that you discussed in the first part of the essay?