Related Experiment Video
Updated: Jul 12, 2025
06:38
Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
Published on: June 9, 2020
4.9K
Following car reduces motorcycles' size-arrival effect: A study using online experiments.
Yanbin Wu1, Ken Kihara2, Yuji Takeda2
1Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Japan.
Applied Ergonomics
|October 24, 2023
Summary
Drivers often misjudge motorcycle arrival times due to the size-arrival effect, leading to accidents. A following car can mitigate this risk by making the motorcycle appear to arrive later.
Area of Science:
- Cognitive Psychology
- Human Factors
- Traffic Safety Research
Background:
- Fatal motorcycle accidents frequently result from drivers violating motorcyclists' right-of-way.
- The size-arrival effect, where larger objects appear to arrive sooner, contributes to these accidents.
- Existing research primarily examines single approaching vehicles, neglecting multi-vehicle scenarios.
Purpose of the Study:
- To validate the size-arrival effect for approaching cars and motorcycles.
- To investigate the size-arrival effect when a motorcycle and car approach simultaneously.
- To inform safe riding strategies for motorcyclists and improve intersection safety.
Main Methods:
- Conducted two online experiments with a large participant pool (n=1723 in Exp. 1, n=986 in Exp. 2).
- Experiment 1: Assessed the size-arrival effect with single approaching cars or motorcycles.
- Experiment 2: Evaluated the size-arrival effect with a simultaneously approaching motorcycle and car.
Main Results:
- The size-arrival effect was validated; drivers accepted smaller gaps for motorcycles than cars.
- Drivers based intersection turn decisions on distance gaps rather than time-to-arrival.
- Gap acceptance was similar when facing a car and motorcycle together compared to just a car, and significantly larger than facing only a motorcycle.
Conclusions:
- A car driving parallel to or behind a motorcycle diminishes the size-arrival effect.
- The presence of a car mitigates the underestimation of a motorcycle's arrival time.
- Findings suggest strategic positioning of vehicles to enhance motorcycle safety at intersections.
Related Concept Videos
02:01Factorial Design
13.0K
Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...
13.0K
01:25The Anchoring-and-Adjustment Heuristic
7.3K
In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
7.3K
02:09Bystander Effect
9.6K
The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
9.6K
01:42Schemas
11.6K
A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
11.6K
00:52Social Proof
27.7K
Social proof is a form of persuasion based on comparison and conformity. People compare their behavior and actions to what others are doing and will change to conform to do what their peers do.
27.7K