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MapScenes
The MapScenes System is designed to provide professional investigators with the tools to capture data quickly and precisely at a scene, and then, visually communicate the output of their investigation in accurate and compelling diagrams under the highest scrutiny.

www.MapScenes.com

Collision Magazine

Collision Magazine
A print publication dedicated to providing timely and current crash research and information. Includes conference DVD's from both the ARC-CSI Crash Conference and CDR User's Conference.

SUBSCRIBE TODAY
www.collisionpublishing.com

Crash Data Group CDR

Crash Data Group is the exclusive distributor for Bosch Crash Data Retrieval (CDR) hardware and software. Visit our web site for complete information on Crash Data Retrieval.

www.cdr-system.com

CDR User's Summit

CDR User's Summit
is offered annually in Houston, TX. This is a comprehensive Summit to publish Crash Data Retrieval System (CDR) related information in the form of papers, data compendium and the like. It covers legal issues, legislation, user applications, and future developments. Subject matter experts from around the world present on the newest topics and research regarding CDR.

Next Conference
Jan. 21-23, 2013
Houston, TX

www.cdrsummit.com

ARC-CSI Crash Conference

ARC-CSI Crash Conference is offered annually in Las Vegas, NV. This 4-day conference includes live crash testing and presentations from leading experts from around the world.

It is the industry's leading conference for private practice crash reconstructionist's and law enforcement.

Next Conference
June 4-7, 2012
Las Vegas, NV

www.arccsi.com

  

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Accident Reconstruction Research: Tires

Tire Wear

Bulge:
When there is separtion of the sidewall you will start to see a bulge. This is a serious hazard and the tire should be replaced.

Camber Angle or Toe Angle:
This type of wear is typically caused by bad alignment. This can been seen in a visual inspection. Note that this type of wear is sometimes overlooked when it is located on the inside of the tire.

Chopped:
 This type of wear is a chopped pattern. It is usually on the outer edge of the tire. It is typically caused by a lack of tire rotation.
Chunk:
This type of wear can be found on a visual inspection where a chunk of the tire is missing.
Cup:
This type of wear can be found on a visual inspection where you will notice a cup type depression. You will also be able to locate this type of wear by running your hand across the tire.
Tear:
This type of wear could be caused by many different conditions. It can be found by a visual inspection. This type of tire damage typically will expose the tire casing causing greater vulnerability and should be replaced.
Feathered Toe Angle:
This type of tire wear is typically caused by misalignment and can easily be felt by running your hand along the tread.
Worn Outer Edges:
This type of tire wear can be found on a visual inspection where the outer edges of the tire are worn smoothly. This is typically caused by low air pressure.
Worn Center Tread:
This type of tire wear can be found on a visual inspection where the tire tread is worn gradually from the outer edge to the inner tire tread. This is typically caused by over inflated tires and/or improperly sized rims/tires.
Deep Scallop:
Deep Scalloped wear is typically caused by diminishing struts/shocks. Another cause may be tires that are not properly balanced (typically the pattern is tighter).
Tread Separation:
This type of wear is when the tread itself starts to separate. This typically cuases the vehicle to "wobble" at lower speeds and a pull to one side. It has the potential to become a hazard and should be replaced.

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