Multi-Sensory Touch Model

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Multi-sensory models helps users find their way

The IDeA Center and Touch Graphics, Inc. collaborated to create multi-sensory interactive touch maps and models. These devices improve orientation and mobility for individuals who are blind or visually impaired, as well as people of all abilities.

Traditionally, schools for the blind support incoming students by providing a ‘direct experience’ tour of the campus with the help of an orientation and mobility specialist. Although this technique is effective, it does not support goals of independence and participation that are promoted in this type of learning environment. Schools for the blind can supplement the ‘direct experience’ approach by using multi-sensory maps and models.

From Prototypes to Commercialization

The touch model project began as a development activity in the RERC-UD to improve wayfinding for these schools and their students. Usability evaluations after each prototype iteration resulted in improved technologies and user experiences.

Carrol Center for Blind

The first iteration of the touch model series, the Carroll Center model, features tactile buildings, pathways, and parking lots that are touch responsive. A push button system allows users to search for buildings. Audio information includes the name of the building, its function, and directions from the model location.

Chicago Lighthouse for the Blind

The Chicago Lighthouse has two models: the first is located in the main entrance lobby; the second is on the second floor. Both models feature a tactile map of the building layout to scale and an overhead projector to display the text.

Perkins School for the Blind

Located in the Grousbeck Center, the Perkins model consists of 26 different identifiable buildings across 16 complexes. There are several landscape features including a pond, a picnic area, a playground, and a track, which are also identified when touched. An integrated game helps users learn the campus.

National Mall

As part of a Phase 2: SBIR grant, a usability of a prototype National Mall interactive touch model was conducted. The objectives include: 1) study the overall usability of a newly design prototype 3D interactive touch model across 6 demographics, 2) Assess usefulness of an adjustable height pedestal for housing the model 3) Study the overall ergonomics of 4 distinct angle during user interaction and 5) Provide participant feedback and professional recommendations to improve the usability prototype.

These commercialized devices now use inexpensive touch screens and enhanced 3D printing. To date, they have been adopted by large tech companies, museums, and a national park.