Interstate 75 safety projects in Northern Kentucky : hearing before the subcommittee on investigations and oversight of the committee on public works, House of Representations, 92nd Congress, 1st session, September 24, 1971.

A hearing was held in the Interstate 75 highway. On a special point much accidents has happened. Countermeasures like a cement guardrail, speed limits and, better signalization with a.o. warning signs were discussed. After the installation of these countermeasures the number of fatalities was decreasing.