TTC CALCULATOR

Time-to-Collision Analysis & Avoidability Assessment

Designed by Driven Evidence - Copyright 2026 | US Patent Pending

Critical Liability Tool: Time-to-Collision (TTC) analysis determines whether a collision was avoidable given reaction times, vehicle speeds, and approach geometry. Essential for "he came out of nowhere" claims, left-turn disputes, lane change crashes, and intersection liability. Calculates precise opportunity windows for evasive action.

Scenario Parameters

Vehicle A (Subject)

Initial Distance (feet)

Initial Speed (mph)

Approach Angle (°)

Acceleration Rate 0.0 ft/s²

Reaction Time 1.5 s

Vehicle B (Other Party)

Initial Distance (feet)

Initial Speed (mph)

Approach Angle (°)

Acceleration Rate 0.0 ft/s²

Reaction Time 1.5 s

TTC Analysis

Time to Collision

0.0 seconds

CALCULATING

Closing Speed

0mph

Perception Distance

0ft

Avoidance Window

0.0s

Collision Point

—

Approach Timeline Visualization

Avoidability Analysis

Opportunity for Evasive Action

Calculate TTC to see avoidance opportunity analysis

Comparative Fault Assessment

Calculate TTC to see comparative fault evaluation

INFO
Click "Calculate TTC" to generate avoidability findings