One of the significant drains is car accidents, which can kill people at the prime of their working lives. Americans who live in suburbs with poor transportation access are two to five times more likely to be killed in an accident, the report says. Per capita, car crashes impose a nearly $1,750 annual cost on both individuals and the larger economy, according to the report, titled “Analysis of Public Policies that Unintentionally Encourage and Subsidize Urban Sprawl.”