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Case Study

Retrofitted Wheelchair Ramp for EU Bus

A Partner Who Aligns With Your Goal & Dismantles Challenges

Challenges that call on various engineering disciplines are one thing, but when framed around compliance, it’s a whole other ball game. Our multidisciplinary in-house team was the ideal choice for this unique challenge as we have the experience in each skill set required.

Engineering Services Used

With Treetown's team at their side, this client received input from our software, electrical, and mechanical engineers to ensure a working ramp that was in compliance.

Project Timeline

The bus ramp project was completed over approximately six months, with the customer providing a bus directly to Treetown to enable rapid, on-the-fly development based on general goals rather than detailed requirements. By simultaneously prototyping the electronics and mechanical design, the team met ADA requirements within the existing space constraints, significantly accelerating progress and avoiding delays typical of multi-team coordination.

Retrofitted Wheelchair Ramp for EU Bus

Meeting Needs With an Efficient & Functional Design

A European bus manufacturer came to us with an existing wheelchair access ramp that didn’t comply with US ADA specs. However, creating an ADA-compliant ramp was not the challenge; building a telescoping ramp and fitting it inside the existing infrastructure was the challenge.

The number of individual experts needed for this project would be prohibitively expensive, calling on mechanical, electrical, and software engineering expertise, and a not-insignificant amount of creativity and innovation. Luckily, Treetown Tech has all of that under one roof. The outcome was a highly functional (and elegant) access ramp retrofitted to the original bus structure complete with driver controls and safety features.

Our Solution & Results

We always kick off a project by sitting down with the client. We want to understand the challenges they’re facing along with the project scope and requirements. Once we have a solid understanding, we get to work uncovering a solution.

To overhaul the EU Model, we designed and fabricated a new telescoping wheelchair ramp retrofitted to the existing bus while ensuring every inch of the new ramp met ADA compliance. For functionality, our electrical and software engineers put their heads together to integrate the controller and source code into the existing vehicle network and electrical architecture.

At every stage we performed functional and durability testing, solving any weak spot or problem uncovered.

The scope of this project would’ve required many areas of expertise, quickly slowing the entire process down by making sure the different engineering disciplines worked in a cohesive way. With Treetown Tech having one community of experts working in tandem, it was a streamlined solution forged with ease.

Retrofitted Wheelchair Ramp for EU Bus diagram
Retrofitted Wheelchair Ramp for EU Bus diagram

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