The percentage of orders out of order during Brake Safety Week remains stable in the US

The results of Brake Safety Week, conducted this year by the Commercial Vehicle Safety Alliance, are close in numbers to 2021 numbers.

The number of vehicles inspected in the US from August 21-27 was 34,402, a significant increase from the 28,694 last year. But the out-of-service (OOS) injury rate has changed little — from 13.5% last year to 13.6% in 2022.

Meanwhile, there was a notable increase in Canada, where inspections resulted in 17.8% OOS violations, compared to 15.4% last year. The number of vehicles inspected in Canada this year was 1,975. Last year it was close at 1,903.

According to CVSA data, Mexico inspected just 1,740 vehicles this year, far fewer than last year’s 5,167. The OOS rate in Mexico was 2.5% this year and 2.6% last year.

The bottom line is that 13.3% of 38,117 vehicles inspected during Brake Safety Week 2022 in North America resulted in a vehicle being taken out of service. Last year it was about 12%.

The percentage decrease appears to be largely due to the US rate remaining stable while being applied to a much larger base of inspections. American inspections as a percentage of the total increased, and given that the percentage of OOS orders remained essentially unchanged, the bottom line is a lower overall OOS rate for the three nations combined.

In releasing the numbers this week, the CVSA said inspections conducted during Brake Safety Week “do not differ from inspections conducted any other day of the year.” But brake data is sent to CVSA for “compilation, analysis and approval”.

Brake Safety Week is a voluntary law enforcement event in partnership with CVSA, a nonprofit organization comprised of diverse law enforcement agencies tasked with enforcing highway safety regulations in all three North American nations.

Although Brake Safety Week is voluntary, 53 Canadian and U.S. jurisdictions, along with Mexico’s Department of Communications and Transportation, participated this year, according to the agency. Last year there were a total of 50 in Canada and the USA.

CVSA has already set next year’s Brake Safety Week for August 20-26.

The CVSA also said 11 of its jurisdictions had conducted performance-based brake tester inspections and that 7% of trucks failed their tests and were retired. The PPBT test uses “mechanical or electronic deceleration meters” to measure braking performance “at which deceleration and/or stopping distance are obtained, regardless of brake type or actuation method,” CVSA said.

The CVSA breaks down data for the four categories of brake hose chafing violations. Only one of them results in an OOS arrangement when “any part of the fabric/steel braid reinforcement layer is frayed, severed or cut”.

The total number of brake hose/hose injuries was documented as 6,305 and the percentage of vehicles found to have these types of injuries that were retired was 19% in the US, 12% in Canada and in Mexico to 15%.

While these percentages are higher than the overall brake-related OOS rates for the three countries, according to Kerri Wirachowsky, CVSA director of inspection programs, the overall rates are lower because the totals are based on a broader base than just the hose data.

“These OOS conditions can range from brake hose injuries to broken drums/rotors, air loss, tractor protection system problems, etc.,” Wirachowsky said in an email to FreightWaves.

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