Elevated Tactile Handrail for Vehicle Cabin Navigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Visually impaired passengers face challenges in navigating and finding their way within vehicles due to limited or non-existent visual cues, especially during hectic boarding and disembarking processes, where traditional orientation methods like canes are inadequate in confined spaces.
Innovation Solution
A vehicle guidance system featuring a tactile guiding handrail with visually highlighted and manually touchable information, mounted above seating zones and movement areas, providing continuous guidance throughout the cabin space, including service zones, to help passengers navigate and locate essential features like seats, restrooms, and exits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a continuous handrail is arranged in the common longitudinal manner at typical handrail height, then it is easily reachable for passengers, but it disturbs the seating zone and interferes with passenger movement and seating procedures
Solution Approach 1:
The handrail is relocated from the horizontal plane at typical height to the vertical dimension above the seating zone. This dimensional shift allows the handrail to provide continuous guidance along the longitudinal cabin space without occupying the horizontal seating area, thus avoiding interference with passenger seating and movement while remaining accessible to standing passengers in the movement area
2Loss of information
If traditional floor-based tactile guidance is used, then it provides orientation information, but it is inadequate in confined vehicle spaces and requires passengers to leave the movement area to access it
Solution Approach 1:
The guidance system is elevated from the floor plane to the vertical dimension above the seating zone. This allows visually impaired passengers to access tactile guidance information while standing in the movement area without needing to step out of the accessible zone, making the guidance system integrated into the cabin space rather than separate from it
Solution Approach 2:
The elevated handrail structure serves multiple functions simultaneously: it provides continuous tactile guidance for visually impaired passengers, offers visual orientation through highlighted information, and maintains the structural integrity of the cabin. This multi-functionality consolidates guidance and support functions into a single integrated element
3Loss of information
If visually highlighted information is provided on the handrail, then orientation information is more visible, but it may not be accessible to completely visually impaired passengers
Solution Approach 1:
The handrail incorporates different types of information presentation at different locations: visually highlighted information (such as colored sections or illuminated elements) for passengers with partial vision, and tactile elements (such as Braille or raised patterns) for completely visually impaired passengers. This local differentiation ensures that all passengers can access the information appropriate to their needs
Solution Approach 2:
The information presentation on the handrail utilizes multiple sensory parameters simultaneously - visual parameters (color, brightness, contrast) for those who can see, and tactile parameters (surface texture, raised patterns, temperature differences) for those who cannot. This multi-parameter approach ensures accessibility across the full spectrum of visual impairment
Data Source
AI summary
To provide an improved guiding of visually impaired passengers on-board a vehicle, a vehicle guidance system for guiding visually impaired passengers on-board a vehicle includes an interior space on-board the vehicle with at least one cabin zone at least one movement area and at least one seating zone located in the cabin interior space, and at least one guiding handrail. The guiding handrail is mounted at least along a part of the cabin zone in the vicinity of the movement area. The guiding handrail is a tactile guide, along which a passenger can be guided for movement within the cabin zone by a touching contact with the guiding handrail. The guiding handrail is provided with visually highlighted information and manually touchable information, both related to cabin information. The guiding handrail is mounted above the seating zone, and within reach of a passenger present in the adjacent movement area.