Pedestrian Route Optimization for Mobility Impairments

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Mobility-impaired pedestrians face challenges in navigating unfamiliar areas due to physical or emotional limitations, making it difficult to access public facilities and buildings effectively.

Innovation Solution

A processor-implemented method that receives mobile tracking readings from multiple mobility assistance devices to generate optimal pedestrian routes, prioritizing routes with the highest tracking history to a desired destination, taking into account the specific mobility impairment and current conditions such as weather and time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional navigation systems are used, then general route guidance is provided, but accessibility needs of mobility-impaired pedestrians are not addressed

Engineering Contradiction:
Improveadaptability to mobility impairmentVSAvoidnavigation accessibility
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system customizes route recommendations based on specific mobility impairment types (wheelchair, crutches, cane, no aid) by analyzing tracking data from similar users. Each user receives locally optimized route quality metrics tailored to their specific mobility needs rather than generic navigation.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system changes the parameters used for route evaluation from standard navigation metrics to accessibility-specific metrics including surface type, slope, crosswalk presence, and amenities. These parameter changes enable the system to optimize routes specifically for mobility-impaired pedestrians.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If real-time tracking of multiple users is implemented, then route optimization accuracy improves, but system complexity increases

Engineering Contradiction:
Improveroute optimization accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The tracking device serves multiple functions: it collects real-time location data, gathers accessibility feedback, and provides navigation guidance. This multi-functionality reduces the need for separate specialized systems while maintaining high measurement precision for route optimization.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically processes tracking data from multiple users to generate route quality metrics without requiring manual input or complex configuration. The automated analysis of aggregated tracking data simplifies system operation while improving route optimization accuracy.

Inventive Principle:
Principle #25Self-service

3Reliability

If aggregated tracking data from multiple users is analyzed, then route recommendations improve, but data processing requirements increase

Engineering Contradiction:
Improveroute recommendation reliabilityVSAvoiddata processing energy
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system pre-calculates route quality metrics by analyzing aggregated tracking data before providing recommendations to individual users. This preliminary processing of common route patterns reduces the computational energy required for each individual query while maintaining high recommendation reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system merges tracking data from multiple users to identify common accessible routes and patterns. By combining data from users with similar mobility impairments, the system creates consolidated route quality assessments that improve reliability while reducing redundant processing for each individual user.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9207089B2Mobility route optimization
Publication Date: 2015.12.08 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US9207089B2 patent drawing
  • US9207089B2 patent drawing
  • US9207089B2 patent drawing

AI summary

A processor-implemented method, system, and/or computer program product guides mobility-impaired pedestrians. Mobile tracking readings are received from multiple mobility assistance devices, each of which has an affixed tracking device. Based on these mobile tracking readings, multiple pedestrian routes for mobility-impaired pedestrians, including an optimal pedestrian route that has the highest tracking history to a desired destination, are generated.