Threading his way through congested Sunday traffic near Chicago last week, many a motorist with an automobile radio heard a voice interrupt the program with such comments as: "All motorists from Joliet bound for points east of Hammond should use U. S. Highway No. 6 to avoid a detour on Route No. 30 between New Lenox and Frankfort."
This advice came from a large transport plane circling over Cook County. In it, getting a bird's eye view of the area, were a county highway chief and a local judge. When either of them spotted a...
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