|
TruckStopper.com David A. Stopper of Stopper & Associates Highway Collision Research 6200 Evergreen Mountain Road Broad Run, VA 20137-1907 540-347-0702 Fax 540-347-0763
|
|
NEW portable Brake Testing Unit
|
Articles 1. Considering Truck Weight - David A. Stopper, Staff Instructor - Commercial Vehicle Collision Reconstruction - TEEX Texas Engineering Extension Service - Texas A & M University - College Station, Texas Download the Paper - Word 97 format. - 615KB Abstract The lawful allowable weights are often a consideration in the reconstruction of commercial vehicle collisions. The reconstructionist must be cautious not to assume that a vehicle that has exceeded the statutory limits has necessarily exceeded the design weight limits of the commercial motor vehicle. Nor should the reconstructionist assume a vehicle that is at or below the statutory weight limits necessarily is being operated within safety requirements for the subject commercial vehicle. This paper will discuss weight considerations and the basis for weights, which should be considered by the reconstructionist in commercial vehicle collisions. 2. Heavy Air Braked Vehicle - David A. Stopper, Staff Instructor - Commercial Vehicle Collision Reconstruction - TEEX Texas Engineering Extension Service - Texas A & M University - College Station, Texas Download the Paper - Word 97 format. - 2785KB Abstract Investigation of heavy air braked vehicle collisions and controlled emergency brake testing often reveal irregularities in tire marking from locked wheels. It is not uncommon to find trucks loaded to near full axle capacity with brakes in proper mechanical condition, leaving little or no tire marking on the pavement. If marking does occur, a delay seems apparent. Another irregularity confronting the accident investigator occurs when clear tire marking is apparent from wheels that are later inspected and found to be beyond adjustment limits so much so the vehicle is declared in an "Out Of Service" condition due to defective brakes. 3. WREX 2000 Test Data Results - David Stopper, Texas A&M-TEEX, Instructor Chris Voeglie, National Transportation Safety Board Ron Heusser, Engineering Accident Analysis Steve McKinzie,Texas A&M-TEEX, Instructor Download the Paper - Word 97 format. - 1073KB
|