Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Sight Distance in a Vertical Curve

Sight Distance in a Vertical Curve

Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...

Dynamics Of Circular Motion: Applications

Dynamics Of Circular Motion: Applications

Suppose a car moves on flat ground and turns to the left. The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. For this, a minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway. Let's now consider banked curves, where the slope of the road helps in negotiating the curve. The greater the angle of the curve, the faster one can take the curve. It is common for race tracks for...

Types of Collisions - II

Types of Collisions - II

When two or more objects collide with each other, they can stick together to form one single composite object (after collision). The total mass of the object after the collision is the sum of the masses of the original objects, and it moves with a velocity dictated by the conservation of momentum. Although the system's total momentum remains constant, the kinetic energy decreases, and thus such a collision is an inelastic collision. Most of the collisions between objects in daily life are...

Introduction to Vertical Curves

Introduction to Vertical Curves

Vertical curves are parabolic transitions that connect different grades on highways and railroads, ensuring a smooth alignment between back and forward tangents. The back tangent represents the initial grade, while the forward tangent defines the subsequent grade. These curves can be symmetrical, with equal tangent lengths, or nonsymmetrical, with varying lengths. The key points defining a vertical curve include the Point of Vertical Intersection (P.V.I.), where the tangents meet; the Point of...

Types Of Collisions - I

Types Of Collisions - I

When two objects come in direct contact with each other, it is called a collision. During a collision, two or more objects exert forces on each other in a relatively short amount of time. A collision can be categorized as either an elastic or inelastic collision. If two or more objects approach each other, collide and then bounce off, moving away from each other with the same relative speed at which they approached each other, the total kinetic energy of the system is said to be conserved. This...

Collisions in Multiple Dimensions: Problem Solving

Collisions in Multiple Dimensions: Problem Solving

In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Behavior change associated with using partial automation among three samples of drivers during a 4-week field trial.

Journal of safety research·2025

Same author

RAVE checklist: Recommendations for overcoming challenges in retrospective safety studies of automated driving systems.

Traffic injury prevention·2025

Same author

Effect of ESC (electronic stability control) on tree and pole impacts with focus on rear impacts.

Heliyon·2024

Same author

The utility of telematics data for estimating the prevalence of driver handheld cellphone use, 2019-2022.

Journal of safety research·2024

Same author

The association between strengthened cellphone laws and police-reported rear-end crash rates.

Journal of safety research·2023

Same author

How can front crash prevention systems address more police-reported crashes in the United States?

Accident; analysis and prevention·2023

Search research articles

Related Experiment Video

Updated: Jul 27, 2025

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

Left-turn crashes and motorcycle safety.

¹Research Department, Insurance Institute for Highway Safety, Arlington, Virginia.

Traffic Injury Prevention

|June 9, 2023

Summary

Left turns by other vehicles in front of motorcycles are the most common fatal crash type. Addressing these specific motorcycle safety issues can significantly reduce harm.

Area of Science:

Road safety
Traffic accident analysis
Motorcycle safety

Background:

Left-turn crashes involving motorcycles are a significant concern.
Previous data highlights the severity of these collisions.

Purpose of the Study:

To present current statistics on motorcycle crashes caused by vehicles turning left.
To explore the potential of left turn assist technology in mitigating these incidents.

Main Methods:

Analysis of 2-vehicle fatal and police-reported motorcycle crashes from 2017-2021.
Categorization of crashes by type, focusing on turning vehicle involvements.

Main Results:

Crashes where a vehicle turned left in front of an oncoming motorcycle constituted 26% of fatal 2-vehicle motorcycle crashes.

Keywords:

Motorcycle safety crash avoidance crash avoidance technology left turn assist left turns motorcycle

More Related Videos

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

Published on: September 21, 2017

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

Related Experiment Videos

Last Updated: Jul 27, 2025

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

Published on: September 21, 2017

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

This specific crash type is the most frequent among fatal incidents.

Conclusions:

A substantial opportunity exists to reduce motorcycle-related harm.
Implementing a multi-faceted approach, including technologies like left turn assist, is recommended to address these prevalent crashes.