Table 5 Collision risk assessment model components and parameters.

From: Design and research of bridge collision avoidance system based on camera calibration technology and motion detection

Component

Input Features

Methodology

Output

Proximity Analysis

Distance to bridge structure

Euclidean distance, buffer zones

Spatial threshold violation

Time-to-Impact Calculation

Velocity, direction, current position

Linear extrapolation, motion vector

TTI (seconds)

Risk Classification

TTI, distance, speed, trajectory angle

Rule-based logic/ML classifier

Low, Medium, High Risk

Confidence Scoring

All motion and spatial parameters

Weighted scoring model

0–1 collision likelihood score

Alert Decision Logic

Risk level, confidence score

Boolean thresholding and logic gating

Generate alert/No action

Back to article page