Crosswalk System

Bachelor’s thesis in Industrial Design at the Wentworth Institute of Technology. The project addressed a persistent gap in pedestrian infrastructure — the crosswalk signal system.

Through research into crash demographics, user behavior and existing hardware, I developed a system that is more intuitive, more visible and easier to install, maintain and interact with. The thesis progressed from research through to a fully fabricated physical prototype.

CategoryAcademic
InstitutionWentworth Institute of Technology
TypeBachelor’s thesis
Year2013
Crosswalk System — thesis cover
Context

A pedestrian crosswalk signal system redesigned from the ground up to be safer and more intuitive.

  • Research

    Investigated pedestrian crash demographics, user behavior and existing crosswalk hardware to identify systemic gaps — finding that both signal visibility and installation complexity were persistent, addressable problems in the current infrastructure.

  • Design development

    Progressed from research and ideation through to a refined final concept, supported by renderings, 3D studies and scale physical models.

  • Mechanical engineering

    Developed the button assembly, drive mechanism and five-step installation sequence in detail — including mold production via silicone casting and a final cast polyurethane exterior shell fabricated for the prototype.

  • Physical prototype

    Fabricated a complete, fully assembled prototype demonstrating the system's installation logic, structural form and functionality at real human scale.

Product overview — key features
Product overview — key features
User scenario — typical crosswalk experience
User scenario — typical crosswalk experience
Existing product analysis — pain points
Existing product analysis — pain points
Research — pedestrian crash statistics
Research — pedestrian crash statistics, 1997–2006
Research — crash demographics by age
Research — crash demographics by age group
Design development — ideation sketches
Design development — ideation sketches
Design development — 3D studies and physical models
Design development — 3D studies and physical models
Final concept renderings
Final concept renderings
Final concept — product form and human scale
Final concept — product form and human scale
Mechanical development — button assembly exploded view
Mechanical development — button assembly exploded view
Mechanical development — drive mechanism prototypes
Mechanical development — drive mechanism prototypes
Mechanical development — button sub-assembly
Mechanical development — button sub-assembly
Mechanical development — exploded view
Mechanical development — exploded view
Mold production — pigment mixing and vacuum degassing
Mold production — pigment mixing and vacuum degassing
Mold production — cast polyurethane shell
Mold production — cast polyurethane shell
Installation — 1. Release mechanism
Installation — 1. Release mechanism
Installation — 2. Internal housing
Installation — 2. Internal housing
Installation — 3. Button and ring
Installation — 3. Button and ring
Installation — 4. Exterior shell
Installation — 4. Exterior shell
Installation — 5. Securing the shell
Installation — 5. Securing the shell
Installation — Assembled
Installation — Assembled
Power and signals — wireless communication and electrical supply diagram
Power and signals — wireless communication and electrical supply diagram