P17011: Wheelchair-Accessible Restroom

Problem Definition

Table of Contents

Team Vision for Problem Definition Phase

Our goal:

At the end of this phase, the team expects to have a complete understanding of the problem and needs being addressed in our project while also assessing the risks and constraints to which a possible solution may be subjected.

What we accomplished:

Throughout this phase of the project, the team has been able to gain a good understanding of the problem, the needs associated with this issue, and the standards already set on this issue by the ADA. More interviews with stakeholders are being completed to encompass all of those affected by this problem.

Project Summary

The ADA defines a wheelchair-accessible bathroom as being 60”x56” with approximately 840in2 being consumed by the actual toilet fixture. Most facilities are required to have two grab bars, placed 33-36 inches above the floor and next to the toilet. Due to the nature of some disabilities, many people lack the strength and or mobility use these grab bars and clean themselves after utilizing such a facility. Some people need to rely on the assistance of an aide or home healthcare worker to allow them to use the restroom

A wheelchair-accessible bathroom allows someone in a wheelchair to use the provided facilities (i.e. toilet, paper, sink, and hand dryer) with minimal excess difficulty compared to that of someone who is not in a wheelchair. The envisioned device improves the accessible bathroom experience for differently abled persons. The prototype will assist users with getting from the chair to the toilet, using the toilet, cleaning themselves afterwards, and returning to the chair.

The expected result is a functional prototype for our client and stakeholders, along with a set of suggested revisions to ADA requirements and standards around the device (including engineering specifications) such that this device or similar devices can be widely implemented without prohibitive costs. In addition, the team expects to deliver a semi-functional demonstration bathroom at imagine RIT. This implementation must be minimal in cost, fit the existing ADA handicap stall footprint, and be compatible with existing toilet fixtures.

Use Cases

Use case for a wheelchair user in the bathroom

Use case for a wheelchair user in the bathroom

Project Goals and Key Deliverables

By the end of this project, our team expects to have the following:

Customer Requirements (Needs)

Customer Requirements Spreadsheet

Customer Requirements Spreadsheet

Engineering Requirements (Metrics & Specifications)

Engineering Requirements Spreadsheet

Engineering Requirements Spreadsheet

House of Quality

A piece of the House of Quality

A piece of the House of Quality

Spreadsheet for the House of Quality


This implementation must:

Risk Management

Partial Failure Mode Effects Analysis (FMEA)

Partial Failure Mode Effects Analysis (FMEA)

Failure Mode Effects Analysis (FMEA)

Design Review Materials

Introduction to the ADA 2010 bathroom standards.

More details about the standards.

One Page Project Summary.

Interview notes:

2016-08-25 Interview with Doug and Chris

2016-09-07 Interview with Teresa

2016-09-08 Interview with Doug and Chris

Plans for next phase

Gantt chart for project plans

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