Modular Rumble Strip Segments with Metallic Cables
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Solution Overview
Problem
Existing rumble strip systems are costly, difficult to assemble and disassemble, and lack environmental sustainability, as they are typically made from expensive polyurethane materials.
Innovation Solution
A portable, modular rumble strip system utilizing improved molding techniques and recycled rubber materials, featuring a carrying handle, stacking lugs, jigsaw style connections for easy assembly, and lengthwise metallic cables for stability and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If permanent rumble strips are placed in the pavement, then driver warning effectiveness is improved, but installation cost and infrastructure modification requirements increase
Solution Approach 1:
The rumble strip system is divided into multiple individual segments that can be independently deployed and removed. Each segment functions as a complete warning unit with its own vibration elements, allowing the system to provide effective driver warnings without requiring permanent pavement installation. This segmentation enables temporary deployment strategies that reduce infrastructure modification costs while maintaining reliability.
Solution Approach 2:
The patent introduces intermediate deployment structures such as roadway barriers, cones, or other temporary support systems that mediate between the rumble strip segments and the roadway surface. These intermediaries allow the rumble strips to be effectively installed without direct permanent attachment to the pavement, significantly reducing installation cost and infrastructure modification requirements while maintaining driver warning effectiveness.
2Adaptability or versatility
If temporary rumble strips are used for construction zones or accidents, then deployment flexibility is improved, but assembly and disassembly complexity increases
Solution Approach 1:
The system is segmented into standardized, modular units that can be independently assembled and disassembled. Each segment is self-contained with integrated components, allowing workers to quickly deploy or remove individual units without complex assembly procedures. This segmentation directly reduces assembly complexity while maintaining deployment flexibility for various temporary hazard scenarios.
Solution Approach 2:
Multiple functional components are merged into single integrated elements. For example, the vibration-generating elements are combined with the structural support and attachment mechanisms into unified segment designs. This merging reduces the number of separate assembly steps and connections required, thereby reducing assembly complexity while preserving the adaptability to deploy in construction zones, accident scenes, and other temporary situations.
3Reliability
If polyurethane material is used for rumble strips, then durability is improved, but manufacturing cost and environmental impact increase
Solution Approach 1:
The patent changes the material parameters by transitioning from expensive polyurethane to cost-effective rubber materials. This parameter change in material composition reduces manufacturing cost while maintaining sufficient durability for temporary deployment applications. The rubber material provides adequate resistance to weathering, UV exposure, and mechanical wear needed for construction zone and accident scene warnings.
Solution Approach 2:
The system employs composite construction combining rubber base material with embedded metallic vibration elements and reinforcing structures. This composite approach allows the use of lower-cost rubber while compensating for any durability differences through the integrated metallic components. The combination achieves the required durability for temporary applications at reduced manufacturing cost and with improved environmental sustainability compared to solid polyurethane construction.
4Ease of operation
If modular segments are used instead of continuous strips, then assembly ease and transportability are improved, but connection reliability between segments may worsen
Solution Approach 1:
The rumble strip system is deliberately segmented into discrete modules that connect through standardized interfaces. These segmentation points incorporate reinforced connection mechanisms including metallic cables, interlocking features, and secure attachment points that maintain reliability across segment boundaries. The segmentation enables easy assembly and transport while the engineered connections ensure continuous, reliable driver warning functionality throughout the assembled structure.
Solution Approach 2:
The segment connections utilize composite construction combining rubber segment bodies with embedded metallic reinforcement elements and cable systems. This composite connection approach provides mechanical strength and structural continuity at the segment interfaces, ensuring connection reliability matches or exceeds that of continuous monolithic strips. The metallic components within the rubber matrix create robust connection points that maintain structural integrity while allowing for modular assembly and disassembly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system is more cost-effective, environmentally friendly, and easier to transport and assemble, while providing effective noise and vibration feedback for driver warnings.
Implementation Method 1
lengthwise metallic cables to offer stability and additional weight
Implementation Method 2
provide an easily detectable noise and vibration, when driven over
Implementation Method 3
provide an easily detectable noise and vibration, when driven over
Data Source
AI summary
A modular highway warning strip system is formed of a plurality of segments assembled together to create a warning strip assembly having a length, wherein each of the plurality of segments are spaced from adjacent ones of the segments along the warning strip length. The segments are assembled together along a cord disposed along the length of the warning strip assembly. A plurality of spacers are disposed on the cord along the length of the warning strip assembly, between adjacent ones of the segments in order to maintain a spacing between each adjacent segment.