| 摘要 |
PURPOSE: A ruler for recording car accident is provided to accurately and clearly record an accident site. CONSTITUTION: A ruler(1) for recording car accident comprises: a ruler body(10) which is formed in a thin plate and expresses three-way intersection and junction along the outer boundary in a line; a display unit having a lane display(21), a vehicle display(22), a component display(23), and person display(24); and a fixation hole which has a connection strand for fixing the ruler body on a research recording paper. The ruler body is formed in 'T', '+', 'S', and 'circle' form.
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