Original sentence: If not accurately predicted at the palanning stage, this extra traffic may lead to the new road becoming congested sooner than anticipated.In the long-term, even more cars may take over the excess road space - which exacerbates the problem.More roads add on to car-dependence.New roads can create new traffic, sometimes referred to as induced demand.This may mean that by building a new road, there is only short-term mitigation of traffic congestion
Edited sentence: In the long-term, even more cars will take over the excess road space - which exacerbates the problem.More roads lead to more traffic congestion.Sometimes referred to as the 'induced-demand' effect, more roads add on to car-dependence.This means that by building a new road, there is only short-term mitigation of traffic congestion