President eisenhower made it a priority for the nation to build the interstate highwaysystem. why were some of his reasons for promoting this massive project, and what effectsdid it have on the culture of america

In a special message to Congress delivered on February 22, 1955, President Eisenhower listed the following reasons for embarking on highway construction:

1.  Safety -- a need to improve the safety of America's road system.
2.  Economics -- poor roads made motorists' costs higher and limited the nation's economic productivity.
3.  National security -- Eisenhower gave this Cold War reasoning:  "In case of an atomic attack on our key cities, the road net must permit quick evacuation of target areas, mobilization of defense forces and maintenance of every essential economic function. But the present system in critical areas would be the breeder of a deadly congestion within hours of an attack."
4.  Infrastructure for the future -- As America's economy grew, a better road system would be needed to support the nation's commercial activity.

The effects on American culture were significant.  The Federal-Aid Highway Act of 1956 was key to a period of dynamic economic growth in the USA.  It also fueled the building of suburbs and a suburban culture -- which can be viewed as a good thing or a bad thing.  Suburban culture had the tendency to segregate white Americans in the suburbs from blacks in the cities' inner core neighborhoods.

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