Route Stress Index Calculation for Safer Navigation Decisions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional navigation systems do not consider potential accident risks associated with recommended routes, failing to account for stress induced by road conditions, which can contribute to increased accident likelihood.
Innovation Solution
A computer-implemented method and system for determining a stress index of a route by dividing it into links and intersections, calculating the stress index for each segment based on complexity attributes, and combining these to obtain an overall stress index for the route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional navigation systems recommend routes based on speed or distance, then routing efficiency is improved, but accident risk increases due to unaccounted stress factors
Solution Approach 1:
The patent introduces a new parameter (stress index) to the routing system, transforming the route selection criteria from purely efficiency-based (time, distance) to a multi-parameter approach that includes stress factors. This allows the system to evaluate and compare routes based on both efficiency and safety metrics, resolving the contradiction by changing the evaluation parameters rather than sacrificing one for the other
Solution Approach 2:
The stress index calculation system acts as an intermediary between the route planning function and the safety assessment. It processes cartographic data, road condition information, and traffic data to generate a stress index that mediates the conflict between efficient routing and safe routing, enabling the navigation system to recommend routes that balance both objectives
2Measurement precision
If the route is divided into multiple links and intersections for stress analysis, then measurement precision of stress index is improved, but device complexity increases
Solution Approach 1:
The patent segments the route into discrete links and intersections, allowing the stress index to be calculated for each segment independently based on its specific characteristics (number of lanes, presence of traffic lights, intersection complexity). This segmentation enables precise measurement of stress factors at each segment while using standardized calculation methods that prevent the system complexity from becoming unmanageable
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A computer implemented method for determining a stress index of a route, comprising: determining, based on a cartographic representation, at least one route from a first point to a second point; dividing, by a stress index determination system, the at least one route into one or more links and/or intersections; determining, by the stress index determination system, the stress for the at least one or more links and/or intersections; combining, by the stress index determination system, the stress of the one or more links and/or intersections to obtain an overall stress index of the one or more routes.