Reason 4: To strengthen existing cities and communities and reduce tax burdens

Sprawl has become an unrelenting cycle in which one malady feeds the next. Outmigration from existing communities leads to disinvestment in those communities, resulting in greater need for new roads and schools (and taxes), and which helps drive up the cost of land and housing. These are contributing factors driving young families further out into suburban areas. Maryland has experienced enourmous churn from within, with tens of thousands of residents journeying from city to suburb to exurb and beyond. Nearly 55,000 Maryland workers relocated to Pennsylvania since 1980, with many trading lower housing costs for longer commutes. These kinds of development patterns also fuel an income stratification that creates uneven schools and impoverished communities.

chart of net migration from inner to outer suburban counties, 1980 - 2007

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