"About 0.4 mile south of the crash location, speed limit signs were posted that reduced the speed from 55 mph to 45 mph," the report said. "A preliminary review of the data showed that the Peterbilt combination vehicle was traveling at 65 mph for the 60 seconds preceding the collision with the Mercedes-Benz limo van. NTSB investigators are correlating these data with the physical evidence."
The report also said Roper was operating within regulation maximum consecutive driving hours, though the board is comparing his log with other documentation to determine its accuracy. Regulations limit truckers to driving a maximum of 14 hours at once.
Roper had only logged 9 hours and 37 minutes of driving time when the crash occurred.
http://abcnews.go.com/Entertainment/authorities-trucker-tracy-morgan-crash-speeding-time-crash/story?id=24212059