Slowing down

Navigating public spaces | Atomic

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Preamble

Type

Atomic Pattern, Navigating Public Spaces

Ranking

** (initially validated through empirical user studies)

Version

Author

Selina Layer (selina.layer@iao.fraunhofer.de), Kathrin Pollmann (kathrin.pollmann@iao.fraunhofer.de), Christine Busch, Carla Bernadette Bubeck

Design Challenge

Interaction Situation

Humans and robots move in the same space. The robot reduces the speed of its movement. The braking of the robot might influence pedestrians walking and cyclists behind and in front of the robot as they might need to slow down as well or change their path to avoid (near-)collisions.

Communication
Goal

“I am slowing down.”

Design Solution

Solution

Let the robot express that it is slowing down by using a violet brake light that is positioned at the middle in the back and front of the robot. The change of movement speed could also be made more salient by adjusting the movement sound of the robot accordingly: lower volume and deeper pitch for slow movement, higher volume and pitch for faster movement.

Rationale

Vehicles indicate a speed reduction using brake lights at the middle back of the vehicle to warn other road users about this deceleration and to allow them to adapt their trajectories accordingly. Therefore, most people are accustomed to the concept of brake lights, as most people take part in some form of road traffic.

References and
Context

Extends: Active

Light

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Sound

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