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Forensic Engineering Experts: Motorcycles

By: Dr. Irving Ojalvo

Tel: (800) 358-9909
Fax: (888) 358-9901
Email: Dr. Ojalvo

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Technology AssociatesMotorcycles, like passenger cars, are capable of high speeds and must share the road with other vehicles. However, unlike passenger cars, motorcycles are capable of rapid accelerations, offer little protection to the operator during a collision and require special skills to maneuver effectively. This is due in part, to the use of separate front and rear brake controls and the gyroscopic effects of the front wheel, which necessitate a "counter-steering" technique to initiate a rapid change of direction. Motorcycle accidents may also involve helmet considerations, conspicuity to other motorists and many principles used in conventional four-wheeled vehicle accident reconstruction.

Expertise

At Technology Associates our testing, research and analysis capabilities include:

  • Wheelbase crush to determine speed
  • Motorcycle braking analyses
  • Helmet effectiveness studies
  • Momentum and energy calculations

Questions Answered

Through scientific analysis, we can help you answer pertinent questions such as:

  • How fast was the motorcycle going?
  • Why didn't the car driver see the approaching motorcycle?
  • Did the motorcycle rider brake effectively?
  • Would the use of a helmet have reduced the rider's injuries?

Case Examples

Obstacle on Highway:

A large piece of furniture fell off a pickup truck onto a busy three-lane highway. An approaching car and motorcycle avoided striking the furniture but the driver of the car then lost control and began spinning along the highway, causing a collision with the motorcycle. Based on a detailed accident reconstruction, we showed that despite the motorcycle's maneuverability, the rider could not have reasonably been expected to avoid striking the car, which acted as a moving target traveling in an unpredictable motion.

Motorcycle and Left Turning Car:

A sedan making a left turn with a green light at a signalized intersection collided with an oncoming motorcycle, causing the rider to be thrown over the car and suffer fatal injuries. Prior to the impact, the motorcycle rider applied his brake, creating a 58' skid mark. Technology associates performed a motorcycle braking analysis, which revealed that the rider only used his rear brake prior to the collision and had he performed a proper application of both brakes, the impact would have been avoided.


Dr. Irving Ojalvo is Chairman of Technology Associates (www.technology-assoc.com), a forensic engineering firm with offices in New York City and Connecticut. The firm's technical personnel, all of whom have advanced degrees, perform accident reconstruction involving issues of biomechanics, mechanical, traffic, and human factors engineering.

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