Inspectors in 45 jurisdictions throughout Canada, Mexico and the U.S. conducted 4,569 commercial motor vehicle inspections and placed 398 (8.7%) of those vehicles out of service due to brake-related violations as part of the Commercial Vehicle Safety Alliance’s (CVSA) unannounced one-day brake-safety inspection and enforcement event.
CVSA’s Brake Safety Day is an unannounced brake-safety inspection and regulatory compliance enforcement initiative when certified commercial motor vehicle inspectors conduct their routine roadside inspections with a focus on brake systems and components, and provide brake-related inspection and violation data to CVSA.
Of the 4,569 inspections conducted on April 22, 4,171 commercial motor vehicles did not have any brake-related out-of-service violations – 91.3% of the total number of vehicles inspected. Conversely, inspectors identified 398 (8.7%) commercial motor vehicles with brake-related critical inspection item vehicle violations. Those vehicles were immediately restricted from further travel until the violations were addressed.
This year, emphasis was placed on vehicles’ drums and rotors. Thirty-two (8%) commercial motor vehicles had drum/rotor violations during the one-day event. Fourteen of those violations resulted in the vehicle or combination being placed out of service.
Brake drum and rotor issues may affect a commercial motor vehicle’s brake efficiency and result in violations or out-of-service conditions that may affect a motor carrier’s safety rating. Furthermore, broken pieces of drums or rotors may become dislodged en route and damage other vehicles or result in injuries or fatalities.
Table 1 – Brake Drum/Rotor Violations
Inspectors identified 237 (59.5%) commercial motor vehicles that met the 20% defective brakes criterion, which is when 20% or more of the vehicle’s (or combination of vehicles’) brakes have an out-of-service condition.
In addition, inspectors identified 77 out-of-service violations related to brake hoses and/or tubing, 48 vehicles had steering axle out-of-service violations, 38 vehicles failed an air loss rate test, and there were 112 other out-of-service brake violations, such as worn brake lines/hoses, inoperative tractor protection system, inoperative low-air warning device, air leaks, hydraulic fluid leaks, etc.
Table 2 – Brake-Related Out-of-Service Violations
Also, nine U.S. jurisdictions utilized a performance-based brake tester (PBBT) on Brake Safety Day and conducted 100 PBBT Inspections. A PBBT is a machine that assesses the braking performance of a vehicle. U.S. Federal Motor Carrier Safety Regulations and CVSA’s North American Standard Out-of-Service Criteria require a minimum braking efficiency of 43.5%. Eight (8%) vehicles failed to meet the required 43.5% minimum braking efficiency rate and were placed out of service.
Table 3 – Data by Country
CVSA’s unannounced Brake Safety Day is part of Operation Airbrake, a CVSA program dedicated to improving commercial motor vehicle brake safety throughout North America. CVSA’s seven-day Brake Safety Week, another Operation Airbrake campaign, is scheduled for Aug. 24-30.
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