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Reflected Light Bumper
Co-developed an illuminated, modular infrastructure solution to improve campus transportation safety at Purdue University. The project targeted high-risk, dimly lit bicycle corridors that contributed to annual traffic incidents. Our solution introduced a low-profile, modular speed bump equipped with integrated LEDs and retroreflective tiles, providing an active night-time visual boundary and a protective physical barrier between pedestrian walkways and bike lanes.
Process
Process
Design & Process
Problem Definition & Systems Engineering:
Identified and quantified local campus transit safety vulnerabilities, focusing on low-visibility areas.
Utilized a formal Weighted Decision Matrix (WDM) to objectively evaluate competing design concepts against safety, manufacturability, and cost constraints.
CAD Design & Optimization:
Developed the geometric CAD prototype and sourced commercial components using McMaster-Carr.
Integrated a dual-illumination scheme combining an intrinsic LED light source with passive retroreflective elements to maximize visibility while optimizing system power constraints and cost-efficiency.
Cost Estimation & Documentation:
Formulated a comprehensive Bill of Materials (BOM) and cost-benefit analysis in Microsoft Excel, evaluating material performance variations.
Authored a formal Technical Brief in MS Word detailing the design lifecycle, verification testing, and logic pseudocode.
Conducted stakeholder design reviews, iteratively modifying the design envelope based on peer and faculty feedback before presenting the finalized solution.
Iteration 1: Simple LED light inside bumper
Iteration 2: Reflective tiles inside bumper
Iteration 3: Combination of both LED light and reflected bumper
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