Road Surface State Estimation Excluding Recent Construction
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Solution Overview
Problem
Current road maintenance techniques are inefficient in estimating and managing road surface states across multiple sections, leading to excessive calculation loads on management systems and potential delays in identifying areas that require repair.
Innovation Solution
An information processing device and method that estimate road surface states by excluding road sections where recent construction has been performed, using vehicle-acquired data to reduce the number of sections requiring analysis and thereby lowering the calculation load on management servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If road surface state estimation is performed for all road sections, then measurement precision is improved, but calculation load increases
Solution Approach 1:
The patent extracts newly constructed road sections from the overall road network and excludes them from estimation processing. By identifying road sections with construction timestamps within a predetermined period and removing them from the analysis set, the system reduces calculation load while maintaining estimation accuracy for roads that actually require assessment.
2Reliability
If road surface state estimation is performed for all road sections, then reliability of maintenance decisions is improved, but loss of time increases
Solution Approach 1:
The system extracts and excludes newly constructed road sections from the estimation processing queue. By removing these sections that don't require immediate assessment, the processing time is reduced while the reliability of maintenance decisions for remaining roads is preserved through continued accurate estimation.
Solution Approach 2:
The system performs preliminary identification of newly constructed road sections using construction timestamp data before the main estimation process. This preliminary action filters out sections that should be excluded, allowing the subsequent estimation process to focus only on relevant roads and thereby reducing overall processing time without compromising decision reliability.
Data Source
AI summary
In an information processing device according to the present disclosure, a control unit collects vehicle information including a wheel speed change rate acquired by a vehicle traveling on each of a plurality of road sections. The control unit executes a first process of estimating a road surface state of each road section based on the collected vehicle information. At this time, the control unit executes the first process by excluding, from among the road sections, a first road section where first construction related to repair of a road surface has been performed.