| | The work in "[[New Deal]]" America and [[Nazi]] Germany proceeded in parallel. Hitler's National [[Autobahn]] Society and Roosevelt's Bureau of Public Roads Administration had many of the same goals, a modernized high-speed auto route being the main one. | | The work in "[[New Deal]]" America and [[Nazi]] Germany proceeded in parallel. Hitler's National [[Autobahn]] Society and Roosevelt's Bureau of Public Roads Administration had many of the same goals, a modernized high-speed auto route being the main one. |
| − | [[Highway]]s in the United States are distinguished from regular [[road]]s by two major features. First, highways have no [[traffic signal]]s, so that cars can move unobstructed by cross traffic. Second, highways have what is called "full control of access",<ref>[http://mutcd.fhwa.dot.gov/HTM/2003r1/part1/part1a.htm MUTCD 2003], definition of "Freeway"</ref> meaning that the entry and exit [[ramp]]s are bottlenecks that can be closed off in times of [[national emergency]]. This capability was added during the [[Cold War]], when it seemed likely that the highways would occasionally have to be used as [[landing strip]]s for American [[bomber]]s. In practice, highways in the United States are very rarely used for this purpose.<ref>[http://www.cnn.com/2007/US/07/23/plane.on.highway.ap/index.html "Plane lands on Wisconsin highway"], ''CNN.com'', July 23, 2007</ref> | + | [[Highway]]s in the United States are distinguished from regular [[road]]s by two major features. First, highways have no [[traffic signal]]s, so that cars can move unobstructed by cross traffic. Second, highways have what is called "full control of access",<ref>[http://mutcd.fhwa.dot.gov/HTM/2003r1/part1/part1a.htm MUTCD 2003], definition of "Freeway"</ref> meaning that the entry and exit [[ramp]]s are bottlenecks that can be closed off in times of [[national emergency]]. This capability was added during the [[Cold War]], when it seemed likely that the highways would occasionally have to be used as [[landing strip]]s for American [[bomber]]s. In practice, highways in the United States are very rarely used for this purpose.<ref>[https://www.cnn.com/2007/US/07/23/plane.on.highway.ap/index.html "Plane lands on Wisconsin highway"], ''CNN.com'', July 23, 2007</ref> |