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

Differential Relays

Differential Relays

Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...

Rolling Resistance

Rolling Resistance

When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down due to...

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...

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...

Rolling Resistance: Problem Solving

Rolling Resistance: Problem Solving

Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...

Impact Loading

Impact loading occurs when a moving object collides with a stationary structure, such as a rod with a uniform cross-sectional area fixed at one end. Under these conditions, the rod absorbs the kinetic energy from the striking object, leading to deformation and subsequent stress development. As the rod returns to its original position and reaches maximum stress, the absorbed energy, initially manifested as kinetic energy, transforms entirely into strain energy.
In cases of elastic deformation,...

You might also read

Related Articles

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

Sort by

Same author

Assessing the applicability of impact speed injury risk curves based on US data to defining safe speeds in the US and Sweden.

Accident; analysis and prevention·2023

Same author

Finding and understanding pedal misapplication crashes using a deep learning natural language model.

Traffic injury prevention·2021

Same author

Differential benefit of sensor system field-of-view and range in pedestrian automated emergency braking systems.

Traffic injury prevention·2021

Same author

Considering real-world sightline obstructions in crash and injury prevention estimates for left turn across path/opposite direction intersection active safety systems.

Traffic injury prevention·2020

Same author

Expansion of NASS/CDS for characterizing run-off-road crashes.

Traffic injury prevention·2020

Same author

Estimating near side crash injury risk in best performing passenger vehicles in the United States.

Accident; analysis and prevention·2020

Search research articles

Related Experiment Video

Updated: Jun 15, 2026

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

Differential rollover risk in vehicle-to-traffic barrier collisions.

Douglas J Gabauer¹, Hampton C Gabler

¹Department of Civil and Environmental Engineering - Bucknell University, Lewisburg, PA, USA.

Annals of Advances in Automotive Medicine. Association for the Advancement of Automotive Medicine. Annual Scientific Conference

|February 27, 2010

Summary

Sport utility vehicles (SUVs) have 8 times the rollover risk of cars in barrier crashes. Pickup trucks also show increased risk, challenging current crash testing assumptions. Concrete barriers do not increase rollover risk over metal barriers.

More Related Videos

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

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

Related Experiment Videos

Last Updated: Jun 15, 2026

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

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

Area of Science:

Roadside safety
Traffic engineering
Vehicle dynamics

Background:

Debate exists regarding vehicle and barrier types influencing rollover rates in traffic barrier crashes.
Understanding rollover risk is crucial for improving roadside safety infrastructure and vehicle design.

Purpose of the Study:

To investigate rollover rates for sport utility vehicles (SUVs), pickup trucks, and cars in vehicle-traffic barrier crashes.
To examine the effect of barrier type (concrete vs. metal) on rollover risk.

Main Methods:

Analysis of 955 tow-away level longitudinal barrier impact cases from the National Automotive Sampling System (NASS) / Crashworthiness Data System (CDS) over 11 years.
Binary logistic regression used to identify predictors of vehicle rollover.

Main Results:

Vehicle type and pre-impact tracking were the most significant predictors of rollover.
SUVs exhibited 8 times the rollover risk of cars in barrier impacts.
Pickup trucks showed an increased rollover risk compared to cars, but less than SUVs.
No significant difference in rollover risk was found between concrete and metal barriers.

Conclusions:

Current crash testing assumptions based on pickup trucks as a worst-case scenario may need re-evaluation due to higher SUV rollover risk.
Vehicle type is a critical factor in rollover risk during barrier impacts.
Roadside safety strategies should consider the distinct rollover characteristics of different vehicle types, particularly SUVs.