Oncoming Traffic Alert Using Trajectory Prediction on Hazardous Roads
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Solution Overview
Problem
Existing oncoming traffic alert methods rely heavily on driver experience and are ineffective and untimely, increasing the risk of accidents in accident-prone road segments.
Innovation Solution
A method that predicts vehicle trajectories on accident-prone road segments using real-time driving information and road characteristics to identify potential oncoming traffic events, transmitting alerts to drivers via client devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drivers use honking or changing lights to alert oncoming vehicles, then drivers can attempt to warn oncoming traffic, but the effectiveness and timeliness are limited due to dependency on driver experience
Solution Approach 1:
The system enables vehicles to automatically alert oncoming traffic without requiring driver intervention. The electronic device in the vehicle automatically sends alert information to other vehicles through communication modules, making the alerting process self-service rather than dependent on driver action or experience.
Solution Approach 2:
The patent replaces manual mechanical alerting methods (honking, light changes) with an electronic communication system. The system uses electronic devices, communication modules, and automated message transmission to substitute the mechanical and human-dependent alerting process with an automated electronic system.
2Reliability
If drivers use honking or changing lights to alert oncoming vehicles, then drivers can attempt to warn oncoming traffic, but the timeliness is limited
Solution Approach 1:
The system performs preliminary alerting by automatically sending notifications to oncoming vehicles before they reach the hazardous section. The electronic device detects the vehicle's location and proactively transmits alert information to other vehicles, allowing them to prepare in advance rather than reacting at the last moment.
Solution Approach 2:
The patent replaces delayed manual alerting with immediate electronic communication. The automated system detects hazardous conditions and transmits alerts electronically without the delays inherent in human reaction time, significantly improving timeliness.
3Measurement precision
If real-time driving information is collected and trajectory prediction is performed for all vehicles, then oncoming traffic can be identified accurately, but system complexity and computational requirements increase
Solution Approach 1:
The system focuses computational resources on predicting trajectories only for vehicles that may enter hazardous sections, rather than performing complex predictions for all vehicles universally. The electronic device identifies relevant vehicles based on location and direction, applying detailed trajectory analysis only where needed.
Solution Approach 2:
The system performs trajectory prediction for a subset of vehicles that are potentially relevant to the hazardous section, rather than attempting to predict all possible vehicle trajectories. This partial action approach maintains accuracy for critical cases while reducing overall system complexity.
Data Source
AI summary
A method generating oncoming traffic alert information includes: acquiring real-time driving information of vehicles traveling on a target road that includes an accident-prone road segment; predicting trajectories of the vehicles when traveling on the accident-prone road segment, based at least on real-time driving information collected prior the vehicles enter the accident-prone road segment and road segment characteristics associated therewith; determining, based on the trajectories of vehicles driving in different traffic directions on the accident-prone road segment, a target vehicle that will have an oncoming traffic event on the accident-prone road segment and an oncoming traffic alert location; and transmitting oncoming traffic alert information carrying the oncoming traffic alert location and oncoming traffic warning message to a client device of the target vehicle, for the client device to alert the target vehicle that there is an oncoming vehicle on the accident-prone road segment.