PrepTest 61, Section 2, Question 21
A government study indicates that raising speed limits to reflect the actual average speeds of traffic on level, straight stretches of high-speed roadways reduces the accident rate. Since the actual average speed for level, straight stretches of high-speed roadways tends to be 120 kilometers per hour (75 miles per hour), that should be set as a uniform national speed limit for level, straight stretches of all such roadways.
A government study indicates that raising speed limits to reflect the actual average speeds of traffic on level, straight stretches of high-speed roadways reduces the accident rate. Since the actual average speed for level, straight stretches of high-speed roadways tends to be 120 kilometers per hour (75 miles per hour), that should be set as a uniform national speed limit for level, straight stretches of all such roadways.
A government study indicates that raising speed limits to reflect the actual average speeds of traffic on level, straight stretches of high-speed roadways reduces the accident rate. Since the actual average speed for level, straight stretches of high-speed roadways tends to be 120 kilometers per hour (75 miles per hour), that should be set as a uniform national speed limit for level, straight stretches of all such roadways.
A government study indicates that raising speed limits to reflect the actual average speeds of traffic on level, straight stretches of high-speed roadways reduces the accident rate. Since the actual average speed for level, straight stretches of high-speed roadways tends to be 120 kilometers per hour (75 miles per hour), that should be set as a uniform national speed limit for level, straight stretches of all such roadways.
Which one of the following principles, if valid, most helps to justify the reasoning above?
Uniform national speed limits should apply only to high-speed roadways.
Traffic laws applying to high-speed roadways should apply uniformly across the nation.
A uniform national speed limit for high-speed roadways should be set only if all such roadways have roughly equal average speeds of traffic.
Long-standing laws that are widely violated are probably not good laws.
Any measure that reduces the rate of traffic accidents should be implemented.
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