Overtaking Suitability Mapping for Digital Road Networks
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Solution Overview
Problem
Existing systems lack an efficient method to map locations on a road suitable for overtaking, which is crucial for ensuring safe and informed driving practices, especially in autonomous or semi-autonomous vehicles.
Innovation Solution
A method that ascertains a suitability measure for overtaking by evaluating multiple road factors such as lane number, visual range, road curvature, speed limit, distance to intersections, road width, coefficient of sliding friction, road traffic hazards, and traffic rules, and then enters this measure into a digital road map.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple road factors are evaluated to determine overtaking suitability, then the reliability of overtaking information is improved, but the device complexity increases
Solution Approach 1:
The evaluation system is segmented into multiple independent factors (lane number, visual range, road curvature, speed limit, distance to intersections, road width, coefficient of sliding friction, road traffic hazards, and traffic rules). Each factor is evaluated separately and then integrated to determine overall overtaking suitability, making the complex system manageable and reliable
Solution Approach 2:
The digital road map serves multiple functions: it stores basic road geometry data, integrates overtaking suitability information, and provides comprehensive guidance for autonomous vehicles. This multi-functionality reduces the need for separate specialized systems
2Adaptability or versatility
If real-time surroundings data is integrated into the suitability measure, then the adaptability of the system is improved, but the loss of time in data processing increases
Solution Approach 1:
The system pre-processes and stores static road factors (lane configuration, road geometry, speed limits, intersections) in the digital road map before real-time operation. During actual driving, only dynamic factors need to be processed, significantly reducing real-time data processing time while maintaining adaptability
Solution Approach 2:
The system continuously receives real-time surroundings data and updates the suitability measure dynamically. This feedback mechanism ensures the system adapts to current conditions while using efficient data integration methods to minimize processing delays
Data Source
AI summary
A method for mapping at least one location on a road suitable for overtaking. The method including: ascertaining a plurality of factors of the road relevant to overtaking; ascertaining a suitability measure for at least one location on the road which indicates a measure of suitability for overtaking at that location based on the ascertained factors relevant to overtaking; entering the ascertained suitability measure into a digital road map representing the road. A device, a computer program, and a machine-readable storage medium are also described.