As rental and housing costs kept increasing, even renters that would normally be considered affluent elsewhere would struggle with the prospect of home ownership in an area with higher quality schools and amenities.
Japan's privately operated railroads view real estate investment and development of commuter towns as central to their business model.
This can also be influenced by zoning restrictions in urbanized areas that prevent the construction of suitably cheap housing closer to places of employment.
The number of commuter towns increased in the US and the UK during the 20th century because of a trend for people to move out of the cities into the surrounding green belt.
These can take the form of light rail lines extending from the city center to new streetcar suburbs and new or expanded highways, whose construction and traffic can lead to the community becoming part of a larger conurbation.
Then, they grow – first gradually, but soon with explosive force – attracting stores, creating jobs and struggling to keep pace with the need for more schools, more roads, more everything.
"Others argue that exurban environments, such as those that have emerged in Oregon over the last 40 years as a result of the state's unique land use laws, have helped to protect local agriculture and local businesses by creating strict urban growth boundaries that encourage greater population densities in centralized towns, while slowing or greatly reducing urban and suburban sprawl into agricultural, timber land, and natural areas.