Directional Surface Marking Profile Layer Asymmetry
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Solution Overview
Problem
Current surface markings on roadways and pathways are ineffective in providing clear directional guidance to motorists, cyclists, and pedestrians, particularly in preventing wrong-way incidents, as they offer a single message visible from both directions and can be confusing or distracting, especially for impaired individuals.
Innovation Solution
A directional surface marking system that uses a profile layer with different colors and symbols, where the message changes based on the direction of travel, allowing for distinct messaging when viewed from opposite directions, and can include illumination sources for enhanced visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bidirectional roadway markings are used, then both directions of traffic receive the same visual message, but this causes confusion to motorists and impacts safety
Solution Approach 1:
The patent applies asymmetry by creating markings that display different visual messages depending on the direction from which they are viewed. The marking system uses asymmetric design elements such that motorists traveling in the correct direction see one message while those traveling in the incorrect direction see a different message, thereby eliminating confusion and improving safety.
Solution Approach 2:
The patent implements local quality by providing different visual information in different spatial directions. The marking system delivers tailored directional guidance to motorists based on their specific direction of travel, ensuring that each motorist receives appropriate local information relevant to their orientation and travel direction.
2Illumination intensity
If supplemental raised or embedded markers are installed to aid drivers in nighttime or adverse weather conditions, then visibility is improved, but these markers are traditionally the same color as the line they are placed on, reducing their effectiveness as alert devices
Solution Approach 1:
The patent applies asymmetry by equipping supplemental markers with asymmetric visual characteristics that allow them to display different messages or colors depending on the motorist's direction of approach. This enables the markers to provide both enhanced visibility and effective directional alerts, resolving the contradiction between visibility improvement and alert effectiveness.
3Loss of information
If bidirectional markers displaying white in one direction and red in the other are used, then incorrect direction alert is provided, but at a norm of 40-foot centers and less than 8 square inches of displayed color, these are inadequate alert devices
Solution Approach 1:
The patent applies asymmetry to create markers that maximize information delivery within limited spatial constraints. By using asymmetric visual design and optical effects, the markers convey distinct directional information despite having small display areas and being spaced at standard intervals, thereby providing effective alerts without requiring increased marker size or reduced spacing.
Data Source
AI summary
In some embodiments, a directional surface marking may provide directional messaging to users based on their direction of travel on a base surface, such as a roadway, walkway, or interior flooring, as non-limiting examples. In some aspects, the directional messaging may comprise different colors, text, or symbols, wherein a user may view different directional messaging on a directional surface marking dependent on direction of travel. In some embodiments, directional surface markings may comprise a profile layer, wherein the profile layer may comprise a plurality of profiles, which may provide a topography that allows for directional messaging utilizing surface colors on the topography.