Navigation System Safety Routing via Composite Parameters
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Solution Overview
Problem
Conventional navigation systems fail to prioritize safety when routing, neglecting important factors for users such as those traveling with families or at night, despite safety being a critical concern.
Innovation Solution
A transportation services system that incorporates safety considerations into route planning by analyzing historical trip data, user preferences, and third-party safety data to recommend optimal pick-up and drop-off locations and routes, using a server that processes data from various sources to ensure safety without compromising service neutrality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional navigation systems route based on total trip time and distance, then routing efficiency is improved, but safety is compromised
Solution Approach 1:
The patent transforms the routing problem by changing the parameters used for route evaluation. Instead of only using time and distance, the system introduces safety as a new parameter and creates a composite routing parameter that combines multiple factors including safety scores, traffic conditions, and historical incident data. This allows the navigation system to optimize routes based on a more comprehensive set of criteria that prioritizes user safety while maintaining routing efficiency.
2Reliability
If safety factors are incorporated into route planning, then safety is improved, but system complexity increases
Solution Approach 1:
The patent employs intermediary mechanisms to manage system complexity. It introduces safety score data as an intermediary layer that aggregates complex safety information from multiple sources (historical incident data, real-time conditions, user feedback) into a single standardized metric. This safety score then serves as a manageable parameter that can be integrated into existing routing algorithms without requiring complete system redesign, thus improving safety while controlling complexity growth.
Solution Approach 2:
The system segments the safety assessment function into separate modular components: data collection modules that gather safety information from various sources, processing modules that calculate safety scores, and integration modules that incorporate scores into route planning. This segmentation allows each component to be developed and maintained independently, reducing overall system complexity while enabling comprehensive safety evaluation.
3Measurement precision
If multiple data sources are analyzed for safety assessment, then safety accuracy is improved, but data processing time increases
Solution Approach 1:
The patent implements preliminary action by pre-processing and pre-scoring safety data from historical sources before it is needed for routing decisions. Safety scores are calculated and stored in advance based on historical incident data, road characteristics, and other static factors. When a route is requested, the system retrieves these pre-computed scores rather than calculating them in real-time, significantly reducing data processing time while maintaining high safety assessment accuracy.
Solution Approach 2:
The system maintains continuous safety data collection and updates safety scores dynamically as new information becomes available. This continuous action ensures that safety assessments remain accurate and current without requiring complete re-processing of all data sources for each routing request. The system continuously monitors and updates safety metrics, allowing efficient real-time routing decisions based on the latest safety information.
Data Source
AI summary
Examples provided herein describe a navigation system to identify routes that take safety considerations into account. The system accesses safety data from various sources and computes safety data for individual road segments of a map database at multiple times for each road segment. The road segment safety data is used when determining routes for requested trips, including estimating the times that the various road segments on the route will be traversed and determining the safety of each road segment at that time.