Table 2: Summary statistics of single and multiple truck crashes, Wyoming Interstates.

Truck crashes
                                       Variable Name Number %
Single Truck Crashes
Injury single truck crash Injury truck crash 204 15
Property damage only 1166 85
Gender Male 1290 94
Female 75 6
Posted speed limit Less than or Equal 65 MI/HR 396 29
Greater than 65 MI/HR 972 71
Road condition Dry 450 33
Not dry 920 67
Rollover/Jackknife Rollover/Jackknife 993 72
Other types 377 28
Driver distraction Has some Types of Distraction in Cabin 217 16
There was no distraction 1139 84
Multiple Vehicle Crashes, Truck Involved
Injury multiple vehicle crash, truck involved Injury truck crash 85 7
Property damage only 1,203 93
Speed compliance Speed limit was followed 1,203 93
Speed limit was not followed 85 7
Speed Limit was not followed Dry-road condition 32 38
Not-dry-road condition 53 62
Posted Speed Limit Less than or equal 65 mi/hr 365 29
Greater than 65 895 71
Lower posted speed Limit Dry-road condition 161 44
Not-dry-road condition 259 56
Crash characteristic Truck was at fault of crash 749 58
Non-truck driver was at fault of the crash 539 42
Temporal characteristics Business day 808 63
Weekend 480 37