Nearly 50 jurisdictions in Canada and the United States removed 1290 commercial motor vehicles with brake-related critical vehicle inspection item violations on April 27, which was 14.1 percent of the 9132 commercial motor vehicles inspected that day.
This unannounced one-day inspection and enforcement initiative, conducted by members of the Commercial Vehicle Safety Alliance (CVSA), focused specifically on the brake systems and components on commercial motor vehicles. On Brake Safety Day, CVSA-certified inspectors conducted their usual commercial motor vehicle inspections; however, in addition, for this initiative, they also reported brake-related data to the alliance.
- Forty-six jurisdictions participated.
- A total of 9132 inspections were conducted.
- Of the total number of inspections conducted, 1290 vehicles were placed out of service.
- The brake-related out-of-service rate was 14.1 percent.
In addition, inspectors compiled and reported brake hose/tubing violation statistics, which was the focus area for this year’s Brake Safety Day. There were 1534 brake hose/tubing violations. CVSA asked inspectors to submit data on four categories of brake hose/tubing chafing violations.
- A Category 1 violation is when the wear extends into the outer protective material. Thirty-two percent of brake hose/tubing chafing violations were identified as this category. A Category 1 violation is not an out-of-service condition.
- Category 2 is when wear extends through the outer protective material into the outer rubber cover. This is not an out-of-service violation. The largest category, 37 percent of brake hose/tubing chafing violations were Category 2.
- In Category 3, wear has made the reinforcement ply visible, but the ply remains intact. Thirteen percent of brake hose/tubing chafing violations were identified as Category 3, which is not an out-of-service violation.
- In Category 4, chafing has caused any part of the fabric/steel brain reinforcement ply to be frayed, severed, or cut through. This is an out-service-condition. Eighteen percent of brake hose/tubing chafing violations were Category 4.
On April 1, CVSA updated the North American Standard Out-of-Service Criteria to amend Category 4 to make any tubing/hose damage resulting in the fabric/steel braid reinforcement ply being frayed, damaged, or cut an out-of-service violation.
Compared to last year, the new Category 4 brake hose/tubing chafing violations, as a portion of total brake hose/tubing chafing violations, increased modestly from 17 percent to 18 percent, even when accounting for what amounts to combining of Categories 4 and 5 from 2021.
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