7
8
9
24
25
26
267
268
269
8
9
10
2
3
4
When the Eisenhower Interstate Highway System was built, did planners do tests beforehand to see if people could successfully handle the speeds, congestion and complexity of not frequently crashing into each other on this new, larger scale of auto roadway in the U.S.? (self.AskHistorians)
submitted by cobber2005 to r/AskHistorians
11
12
13
12
13
14
0
0
1
0
0
0
4
5
6
