Regional Safety Index Calculation with Quartile Normalization
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Solution Overview
Problem
The existing method for calculating regional safety indexes does not account for changes in societal and environmental conditions since 2015, and lacks incorporation of safety consciousness as an indicator, leading to outdated and unreliable safety assessments.
Innovation Solution
A system and method that updates the data to reflect current years, incorporates safety consciousness indicators, and uses quartiles to adjust outliers, standardize, convert to positive values, and normalize indicators to provide a more accurate and reliable regional safety index.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing method uses reference years 2011-2015 for calculating regional safety indexes, then the calculation process is simple, but the index becomes outdated and does not reflect current societal and environmental conditions
Solution Approach 1:
The patent updates the reference period from 2011-2015 to 2015-2019 to reflect current societal and environmental conditions. This parameter change ensures the safety index reflects contemporary safety levels and trends, resolving the contradiction between reliability and temporal obsolescence without fundamentally changing the calculation methodology
2Reliability
If the existing method does not incorporate safety consciousness indicators, then the calculation is straightforward, but the index fails to measure resident safety awareness and behavior
Solution Approach 1:
The patent segments indicators into four distinct categories: harm indicators, cause indicators, mitigation indicators, and consciousness indicators. This segmentation allows the incorporation of safety consciousness metrics while maintaining a structured calculation approach, resolving the contradiction between comprehensive assessment and methodological simplicity
3Measurement precision
If the existing method uses maximum values from 2011-2015 for normalization, then the normalization process is simple, but it does not account for data distribution changes over time
Solution Approach 1:
The patent changes the normalization approach from using absolute maximum values to using quartile-based thresholds (Q1, Q2, Q3) derived from the 2015-2019 reference period. This parameter change accounts for data distribution characteristics and temporal variations, improving measurement precision while adding moderate computational complexity
4Reliability
If the existing method does not adjust for outliers using quartiles, then the calculation is simpler, but the index is sensitive to extreme values and less reliable
Solution Approach 1:
The patent applies preliminary outlier adjustment using quartile-based methods before proceeding with the main safety index calculation. This preliminary action removes the influence of extreme values on the final index, improving robustness and reliability while adding a preparatory step to the overall process
Data Source
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AI summary
The present invention relates to a system and method for deriving a customized project for improving safety capacity using regional safety index calculation, more particularly to a technology for accurately identifying areas of concern and improving safety capacity in each regional governing body by utilizing the calculated indicators of a regional safety index to normalize the adjusted maximum values for each indicator.