Slip and tilt: modeling falls over railings

Area of Science:

• Forensic Biomechanics
• Accident Reconstruction

Background:

• Falls over railings are common in forensic investigations.
• Distinguishing accidental from non-accidental falls presents a significant biomechanical challenge.

Purpose of the Study:

• To present a simplified mechanical model for analyzing falls over railings.
• To aid in differentiating accidental from non-accidental fall scenarios.

Main Methods:

• Development of a simplified "cranked rod" mechanical model.
• Analysis of anti-slip and anti-tilt conditions to determine fall possibility.
• Integration of the model within a multifactorial approach.

Main Results:

• The model suggests a fall is possible if anti-slip and anti-tilt conditions are violated.
• The simplified model is applicable in scenarios lacking significant dynamic forces (pushing/jumping).

Conclusions:

• The proposed mechanical model provides a basis for investigating falls over railings.
• A multifactorial approach, including this model, numerical simulation, and evidence analysis, is crucial for accurate forensic conclusions.