Changes in speed and speed adaptation following increase in national maximum speed limit
SM Casey, AK Lund - Journal of safety research, 1992 - Elsevier
This study replicates a 1985 study showing that drivers adapted to freeway speeds travel
faster on roads connecting with the freeways than do other drivers on the same roads. In
addition, the study indicates that travel speeds on these freeways were faster in 1988 even
though they had retained the 55 mph (88 km h) limit and were distant from highways
authorized for the 65 mph (105 km h) limits. These findings suggest that allowing higher
speeds on some highways not only causes higher speeds on local, connecting roads …
faster on roads connecting with the freeways than do other drivers on the same roads. In
addition, the study indicates that travel speeds on these freeways were faster in 1988 even
though they had retained the 55 mph (88 km h) limit and were distant from highways
authorized for the 65 mph (105 km h) limits. These findings suggest that allowing higher
speeds on some highways not only causes higher speeds on local, connecting roads …
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