Interconnected Accident Warning Lights for Secondary Crash Prevention

Solution Overview

Problem

Existing warning and traffic control systems are inadequate in promptly alerting drivers to accidents and adverse driving conditions, leading to potential secondary accidents and increased risk due to delayed emergency service arrival and poor road conditions.

Innovation Solution

A system of interconnected accident warning lights that automatically activate upon detecting accidents or adverse conditions, using sensors to alert drivers and emergency services, and adjust traffic flow with colored lights and connected digital signs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If emergency services are dispatched to the scene of an accident, then injuries can be treated and traffic directed, but additional time passes during which secondary accidents may occur

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary action by automatically detecting accidents through sensors and immediately activating warning lights before emergency services arrive. This advance warning system alerts drivers upstream of the accident location, allowing them to slow down or stop before reaching the scene, thereby preventing secondary accidents during the response time delay.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The warning light system acts as an intermediary between the accident scene and approaching drivers. It provides real-time information about hazardous conditions ahead, bridging the information gap that exists during the time lag between accident occurrence and emergency service arrival, enabling drivers to take preventive actions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If traffic is allowed to flow at high speeds on roadways, then productivity is improved, but the ability to stop suddenly is reduced making accidents more dangerous

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system implements feedback by continuously monitoring road conditions through sensors and dynamically adjusting traffic flow information through variable message signs and warning lights. When adverse conditions are detected, the system provides real-time feedback to drivers through warnings and speed recommendations, enabling them to adjust their speed and stopping distance appropriately while maintaining overall traffic productivity.

Inventive Principle:
Principle #23Feedback

3Reliability

If warning systems are activated only after accidents occur, then emergency services can respond, but drivers ahead of the accident are not alerted in time to prevent secondary collisions

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary action by immediately activating warning lights and displaying messages on variable message signs as soon as an accident is detected by sensors, before emergency services arrive and before drivers reach the accident scene. This provides drivers with advance warning and sufficient reaction time to slow down or stop, preventing secondary accidents.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12394286B1Accident warning light
Publication Date: 2025.08.19
  • US12394286B1 patent drawing
  • US12394286B1 patent drawing
  • US12394286B1 patent drawing

AI summary

An accident warning light includes a post assembly and a warning light assembly and is used to monitor a roadway for accidents. The post assembly is further comprised of a post base, a support post, and a post mount and is used to support the warning light assembly. The warning light assembly is further comprised of a top cap, an electrical slot, an angled lip, a strobe socket, a strobe bulb, a strobe lens, and at least one sensor. The divider further has at least one aperture to connect the warning light assembly to the post assembly.