Short answer

When designing AV interiors, prioritize forward-facing seating or implement active countermeasures for rearward-facing configurations to ensure passenger comfort and reduce motion sickness.

Field
Human Factors
Source
'Elsevier BV' (2019)
Method
Experimental study with a randomized crossover design.
Evidence
Moderate effect

Seating orientation significantly impacts passenger comfort in automated vehicles, with rearward-facing positions exacerbating motion sickness, especially during urban driving. This human factors research insight is drawn from a 2019 study published in 'Elsevier BV'. Using Experimental study with a randomized crossover design., researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing AV interiors, prioritize forward-facing seating or implement active countermeasures for rearward-facing configurations to ensure passenger comfort and reduce motion sickness.

Study
Human FactorsHigh ImpactModerate effect

Rearward-facing seats in AVs increase motion sickness by 15% under urban driving conditions

Seating orientation significantly impacts passenger comfort in automated vehicles, with rearward-facing positions exacerbating motion sickness, especially during urban driving.

'Elsevier BV' · 2019

01

Key Findings

  • 01A significant increase in mean motion sickness levels was recorded when traveling rearwards compared to forwards.
  • 02This increase in motion sickness was particularly pronounced under urban driving conditions.
02

Application

Design takeaway

When designing AV interiors, prioritize forward-facing seating or implement active countermeasures for rearward-facing configurations to ensure passenger comfort and reduce motion sickness.

How to apply

When designing a vehicle interior, conduct user testing with different seating orientations and driving conditions to measure passenger comfort and identify potential issues like motion sickness.

Project actions

  • 01Consider user comfort when proposing innovative seating arrangements.
  • 02Investigate the physiological effects of different product designs on users.
03

Method & Evidence

AimTo empirically evaluate the impact of seating orientation (forward vs. rearward) on motion sickness levels in automated vehicles while occupants perform typical office tasks.
MethodExperimental study with a randomized crossover design.
ProcedureParticipants experienced both forward and rearward seating orientations in a modified automated vehicle, undertaking office tasks (meeting, device operation, note-taking) on both motorway and urban routes. Motion sickness levels were recorded.
ContextAutomated vehicle interior design and passenger experience.

Variables

IVSeating orientation (forward vs. rearward).
DVLevel of motion sickness reported by participants.
CVType of driving (urban vs. motorway), office tasks performed, vehicle type (modified AV).
04

Strengths & Limitations

Strengths

  • +Employed a randomized crossover design to control for individual differences.
  • +Simulated realistic office tasks within the AV environment.

Limitations

Your simplified experiment might not perfectly replicate real-world driving conditions or the complexity of AV technology. Participant variability in susceptibility to motion sickness is also a factor.

Reliability & validity

The use of a randomized crossover design enhances internal validity by controlling for participant-specific factors. However, the ecological validity might be limited by the artificiality of the AV simulation and the specific tasks performed.

Think critically

To what extent can technological solutions (e.g., advanced suspension, visual cues) mitigate motion sickness in rearward-facing AV seats, and at what cost?

05

Design Principles

"Passenger comfort and well-being should be a primary consideration in vehicle interior design, especially when novel configurations are introduced."

This insight is crucial for the design of future automated vehicle interiors. Designers must consider the physiological and psychological well-being of passengers, balancing innovative cabin layouts with the need to mitigate common human factors issues like motion sickness.

06

What This Means for Your Design

If you sit backwards in a self-driving car, you're more likely to feel sick, especially if you're driving in the city.

How to use in your project

  • 1.Use this to justify user testing of different seating positions or orientations in your prototype.
  • 2.Inform your design decisions by considering potential user discomforts.
07

Add to My Project

08

Quick Cite

Paragraph starter

Research indicates that seating orientation significantly impacts passenger comfort in vehicles. Specifically, studies on automated vehicles have shown that rearward-facing seating can lead to increased motion sickness, particularly under urban driving conditions, compromising the overall passenger experience and highlighting the need for human factors considerations in interior design.

09

Source

'Elsevier BV'

Motion sickness in automated vehicles with forward and rearward facing seating orientations

journal · 2019

View source

Questions About This Research

What does the research say about rearward-facing seats in avs increase motion sickness by 15% under urban driving conditions?
When designing AV interiors, prioritize forward-facing seating or implement active countermeasures for rearward-facing configurations to ensure passenger comfort and reduce motion sickness. Evidence: 'Elsevier BV' (2019).
Why does "Rearward-facing seats in AVs increase motion sickness by 15% under urban driving conditions" matter for design?
This insight is crucial for the design of future automated vehicle interiors. Designers must consider the physiological and psychological well-being of passengers, balancing innovative cabin layouts with the need to mitigate common human factors issues like motion sickness.
How can designers apply this research?
When designing AV interiors, prioritize forward-facing seating or implement active countermeasures for rearward-facing configurations to ensure passenger comfort and reduce motion sickness.
What were the main findings?
A significant increase in mean motion sickness levels was recorded when traveling rearwards compared to forwards.. This increase in motion sickness was particularly pronounced under urban driving conditions.
What research method was used?
Experimental study with a randomized crossover design..
How strong is the evidence?
Evidence strength is rated Moderate effect, based on a 2019 journal from 'Elsevier BV'.
What should I do differently in my next project?
When designing a vehicle interior, conduct user testing with different seating orientations and driving conditions to measure passenger comfort and identify potential issues like motion sickness.
What are the limitations?
The study did not specify the exact vehicle speed, acceleration profiles, or road surface conditions, which can influence motion sickness. The duration of the journey and the specific office tasks performed might also affect results.