Guidance Assistance System for Crowd Route Adherence
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Solution Overview
Problem
Existing evacuation and travel route guidance systems do not adequately consider the appropriateness of guide sign placement, leading to potential deviations from the route and associated risks.
Innovation Solution
A guidance assistance system that evaluates deviation risk based on route circumstances and prioritizes guide sign placement to minimize route deviations, using a combination of deviation risk evaluation and priority order determination units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide signs are arranged in advance on evacuation routes, then the guidance system can provide basic direction indication, but the appropriateness of placement locations is not optimized leading to insufficient prevention of route deviation
Solution Approach 1:
The system performs preliminary evaluation of deviation risk at various points on the evacuation route before the actual evacuation occurs. By pre-calculating which locations have high risk of deviation based on route characteristics and crowd behavior patterns, the system can strategically place guide signs at these critical points in advance, optimizing their placement without adding complex real-time decision-making infrastructure.
Solution Approach 2:
The system changes the parameter of guide sign placement from uniform or arbitrary positioning to risk-based positioning. By evaluating deviation risk as a quantitative parameter and using it to determine placement locations, the system transforms the guidance approach from generic to targeted, improving route adherence without requiring a complete overhaul of the guidance infrastructure.
2Reliability
If more guide signs are placed along the route, then route deviation can be better prevented, but the cost and complexity of the guidance system increases
Solution Approach 1:
Instead of uniformly distributing guide signs along the entire evacuation route, the system applies local quality by concentrating guide signs at specific locations where deviation risk is evaluated to be high. This targeted approach ensures that guide signs are placed where they are most needed to prevent deviation, rather than wasting resources on locations where deviation is unlikely to occur.
Solution Approach 2:
The system takes a partial action approach by placing guide signs only at critical points along the route rather than throughout the entire route. By identifying and addressing only the portions of the route where deviation is most likely to occur, the system achieves effective guidance with a minimized number of guide signs, avoiding excessive deployment.
3Loss of information
If guide signs are placed based on uniform distribution, then coverage is improved, but the specific needs of high-risk areas are not addressed
Solution Approach 1:
The system changes the placement criterion parameter from uniform spatial distribution to risk-based distribution. By evaluating deviation risk as a key parameter and using it to determine guide sign locations, the system transforms the guidance strategy from covering all areas equally to concentrating guidance where it is most needed, thereby improving deviation prevention effectiveness.
Solution Approach 2:
The system applies local quality by making the guidance density vary across different locations based on their specific deviation risk characteristics. High-risk areas receive higher density of guide signs while low-risk areas receive fewer signs, optimizing the overall effectiveness of the guidance system without uniform resource allocation.
Data Source
AI summary
A guidance assistance system and the like for reducing an influence on a deviation of a crowd from a travel route are provided.The guidance assistance system includes deviation risk evaluation means for deriving a deviation risk representing an influence on a deviation of a crowd from a travel route at a predetermined point on the travel route based on information relating to circumstances of the travel route and a route related to the travel route, and priority order determining means for determining an order of priority relating to arrangement of a guide sign that guides the crowd based on the deviation risk.