Route Scoring for Fair Driver Performance Comparison
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Solution Overview
Problem
Current vehicle telematics systems fail to provide accurate comparisons of driving performance among different drivers due to varying route conditions, leading to unfair penalties and inaccurate risk assessments for insurance and fleet management purposes.
Innovation Solution
Implementing a route scoring system that calculates a route score based on infrastructure features and driving conditions, allowing for the normalization of driving performance scores to account for route difficulty, enabling more accurate assessments and predictions of driving performance across different routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional telematics data collection is used to assess driving behavior, then driving performance scores can be obtained, but the scores become misleading when comparing drivers on different route types
Solution Approach 1:
The patent changes the parameters used for scoring by introducing route-specific weighting factors that adjust the importance of different driving behaviors based on route characteristics. For example, cornering skills are weighted more heavily on hilly routes with turns, while acceleration and braking are weighted more on flat straight routes, thereby adapting the measurement parameters to the specific route context.
Solution Approach 2:
The patent introduces route difficulty scores and route characteristic metrics as intermediary variables that mediate between raw telematics data and final driving performance assessments. These intermediaries capture the influence of route conditions (elevation changes, curvature, traffic density) and use them to normalize driver performance comparisons across different route types.
2Reliability
If drivers are assessed on their actual commute routes without normalization, then real-world performance data is collected, but drivers are unfairly penalized for difficult route conditions
Solution Approach 1:
The patent creates equipotential conditions for driver comparison by normalizing performance scores to a common reference frame. Drivers on different route types (flat vs. hilly, straight vs. curved) are adjusted to equivalent performance levels by accounting for the additional skills required on difficult routes, ensuring that drivers are evaluated on equal footing regardless of their route characteristics.
Solution Approach 2:
The patent applies local quality adjustments by tailoring the assessment criteria to the specific characteristics of each route segment. Different portions of a driver's route receive different weighting based on local conditions - for example, sharp turns receive higher cornering weightings, steep grades receive higher acceleration/deceleration weightings, ensuring that each segment is evaluated according to its specific demands.
3Measurement precision
If route-specific scoring is implemented, then accurate driver comparisons and predictions are achieved, but system complexity increases
Solution Approach 1:
The patent segments the driving route into multiple zones or segments with distinct characteristics (e.g., flat sections, hilly sections, curved sections, straight sections). Each segment is scored independently using appropriate weightings for that specific terrain type, and the overall performance is aggregated from these segmented scores. This modular approach manages complexity by breaking down the overall scoring into manageable, context-specific components.
Data Source
AI summary
In a computer-implemented method of assessing driving performance using route scoring, driving data indicative of operation of a vehicle while the vehicle was driven on a driving route may be received. Road infrastructure data indicative of one or more features of the driving route may also be received. A route score for the driving route may be calculated using the road infrastructure data, and a driving performance score for a driver of the vehicle may be calculated using the driving data and the route score for the driving route. Data may be sent to a client device via a network to cause the client device to display the driving performance score and/or a ranking based on the driving performance score, and/or the driving performance score may be used to determine a risk rating for the driver of the vehicle.