What happens when a heavy truck rear ends a vehicle at low speed? 

Kineticorp Accident Reconstructionist, David Danaher, discusses our latest research “Low Speed Override of Passenger Vehicles with Heavy Trucks.”  David presented the findings at SAE International‘s 2019 World Congress Event (WCX). A special thanks to Sean McDonough and Drew Donaldson for their involvement with the project.

Publication Introduction:

In low speed collisions (under 15 mph) that involve a heavy truck impacting the rear of a passenger vehicle, it is likely that the front bumper of the heavy truck will override the rear bumper beam of the passenger vehicle, creating an override/underride impact configuration. There is limited data available for study when attempting to quantify vehicle damage and crash dynamics in low-speed override/underride impacts. Low speed impact tests were conducted to provide new data for passenger vehicle dynamics and damage assessment for low speed override/underride rear impacts to passenger vehicles. Three tests were conducted, with a tractor-trailer impacting three different passenger vehicles at 5 mph and 10 mph. This paper presents data from these three tests in order to expand the available data set for low speed override/underride collisions…. Purchase Full Publication

Full Publication:

SAE 2019-01-0430 – Low Speed Override of Passenger Vehicles with Heavy Trucks

Authors: 

David Danaher, Sean McDonough, Drew Donaldson

Related Case Studies, Content & Research:

SAE 2019-01-0634 – Event Data Recorder Performance During High Speed Yaw Testing Subsequent to a Simulated Tire Tread Separation Event

SAE 2019-01-0633- Performance of Event Data Recorders Found in Toyota Airbag Control Modules in High Severity Frontal Oblique Offset Crash Tests

SAE 2019-01-0430 – Low Speed Override of Passenger Vehicles with Heavy Trucks

SAE 2019-01-0418 – Speed Analysis of Yawing Passenger Vehicles Following a Tire Tread Detachment

SAE 2019-01-0413 – Braking and Swerving Capabilities of Three-wheeled Motorcycles

SAE 2019-01-0411 – Two Phase Heavy Truck Acceleration Model

Collision Magazine, Volume 12, Issue 1, 2017 – Fracture Energy Calculations for Wooden Utility Poles

SAE 2017-01-1427 – Deceleration Rates of Vehicles with Disabled Tires

SAE 2016-01-1470 – Post-Impact Dynamics for Vehicles with a High Yaw Velocity

SAE 2016-01-1468 – Tire Mark Striations: Sensitivity and Uncertainty Analysis

SAE 2016-01-1479 – The Relationship Between Tire Mark Striations and Tire Forces

SAE 2013-01-0776 – A Comparison of 25 High Speed Tire Disablements Involving Full and Partial Tread Separations

SAE 2012-01-0620 – Comparison of Calculated Speeds for a Yawing and Braking Vehicle to Full-Scale Vehicle Tests

SAE 2010-01-1891 – Full-Scale Testing and Analysis of Tractor-Trailer Braking Performance with and without Trailer Anti-Lock Brakes

SAE 2009-01-0092 – Determining Vehicle Steering and Braking from Yaw Mark Striations

 

Back to Top