In cases where workers maintained their jobs in the city from which they have relocated, the journey to work was a newfound expense. Additionally, public transport services to and from city centres became more crowded due to this phenomenon of employees travelling out of their new overspill housing areas for work in cities. This meant that for those workers with lower incomes, their place of residence may be determined by the amount of money that they could afford to spend on travel. This created class differences between the areas where overspill estates existed, as the upper class could afford to live in and travel from more areas than the lower class.
