The National Academies Press

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Pages 270-273

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From page 270... ... 272 A P P E N D I X C - O H I O C R A S H A S S I G N M E N T R U L E S Ohio Crash Assignment Rules The Ohio HSIS vehicle subfile contains the direction that each vehicle in a crash came from and was going to. This field has nine possible values – north, south, east, west, northeast, northwest, southeast, southwest, and unknown. Read the entire page →
From page 271... ... 273 o Vehicle 1 and 2 travelling from south to north or southwest to northeast – increasing milepost direction and confidence level 1 (this and the prior bullet captured 89% of MV crashes) o Vehicle 1 and 2 travelled from east to west – decreasing milepost direction and confidence level 2 o Vehicle 1 and 2 travelled from west to east – increasing milepost direction and confidence level 2 o Vehicles 1 and 2 travelled from north or northeast to any direction not already assigned – decreasing milepost direction and confidence level 2. Read the entire page →
From page 272... ... 274 o Vehicle 1 and 2 travelled from south to north – decreasing milepost direction and confidence level 1 o Vehicles 1 and 2 travelled from east or southeast or south to any direction not already assigned – decreasing milepost direction and confidence level 2. o Vehicles 1 and 2 travelled from west or northwest or north to any direction not already assigned – increasing milepost direction and confidence level 2. Read the entire page →
From page 273... ... 275 o Vehicles 1 and 2 travelled from east or southeast to any direction not already assigned – decreasing milepost direction and confidence level 2. o Vehicles 1 and 2 travelled from west or northwest to any direction not already assigned – increasing milepost direction and confidence level 2. Read the entire page →

From page 270...

... 272 A P P E N D I X C - O H I O C R A S H A S S I G N M E N T R U L E S Ohio Crash Assignment Rules The Ohio HSIS vehicle subfile contains the direction that each vehicle in a crash came from and was going to. This field has nine possible values – north, south, east, west, northeast, northwest, southeast, southwest, and unknown.

Read the entire page →

From page 271...

... 273 o Vehicle 1 and 2 travelling from south to north or southwest to northeast – increasing milepost direction and confidence level 1 (this and the prior bullet captured 89% of MV crashes) o Vehicle 1 and 2 travelled from east to west – decreasing milepost direction and confidence level 2 o Vehicle 1 and 2 travelled from west to east – increasing milepost direction and confidence level 2 o Vehicles 1 and 2 travelled from north or northeast to any direction not already assigned – decreasing milepost direction and confidence level 2.

Read the entire page →

From page 272...

... 274 o Vehicle 1 and 2 travelled from south to north – decreasing milepost direction and confidence level 1 o Vehicles 1 and 2 travelled from east or southeast or south to any direction not already assigned – decreasing milepost direction and confidence level 2. o Vehicles 1 and 2 travelled from west or northwest or north to any direction not already assigned – increasing milepost direction and confidence level 2.

Read the entire page →

From page 273...

... 275 o Vehicles 1 and 2 travelled from east or southeast to any direction not already assigned – decreasing milepost direction and confidence level 2. o Vehicles 1 and 2 travelled from west or northwest to any direction not already assigned – increasing milepost direction and confidence level 2.

Read the entire page →

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