Judy McReynolds
Analyst · Chris Wetherbee
Thank you, Michael, and good morning, everyone. Despite first quarter, bottom line results that do not meet our expectations, we believe we have better positioned our company for success and enhanced our opportunities for additional growth. ABF's price increases remain at healthy levels. However, our improvements in pricing carry with them the risk of losing some accounts. We continue to experience the impact of our decisions and our customers' decisions in the first half of this year. Our current base of accounts is priced better and is poised to grow more profitably as shipment levels improve. The business environment we experienced in the first quarter was sluggish and inconsistent. Compared to business levels from last year's first quarter, ABF's daily average tonnage declined about 10.5%. Severe winter weather during the first 3 months of 2011 impeded that quarter's tonnage gains by about 2%. As a result, this year's business levels are effectively below the previous period by over 12.5%.
Last year, the effects of adverse weather were offset by the operational efficiencies achieved from handling 20% more business during the first quarter of last year compared to the first quarter of 2010. In this year's first quarter, the costs associated with weather were minimal, but the resulting positive impact on operating income was negated by the operational inefficiencies associated with a double-digit decline in ABF tonnage. On a positive note, we're very encouraged by the tonnage trends we've experienced so far in April. Compared to the same period in March, the improvement in total tonnage is the highest we've seen in over 20 years. ABF has earned additional business from existing customers and new customers and some customers who have returned to our company after leaving in prior periods. We're hopeful that the positive freight trends we experience in April are an indication of improving economic conditions.
So far in April, total revenue for hundredweight has increased by approximately 7.5% versus last year. So this percentage increase is lower as a result of comparison to the strong pricing increases that began about this time last year. This is an indication of ABF's pricing strength as we move into the second quarter.
We are also pleased about recent operational changes to ABF labor contract that were implemented in a phased approach from late March to the latter portion of April. These changes, which are allowed by our existing contract, should result in improved efficiencies, more flexible utilization of employees and enhancements in ABF's on-time delivery service.
ABF is viewed as delivering reliability and dependability in the marketplace. We're known by our customers as problem solvers and solutions providers. Our consistency of service is an important element of the relationships we have with our customers. That consistency was just as important in the first quarter of this year as it is in any other quarter of the year. The safe handling of customer cargo is of utmost importance to ABF.
ABF's cargo claims ratio is one of the lowest in the industry, and for the last 15 years, ABF has either improved or equaled its prior year's superior customer service metrics.
Again, this year, ABF has another great start at improving its cargo claims ratio. Measuring, as a percent of revenue, the first quarter 0.46% cargo claim ratio is below the full year 2011 figure, which was the best in over 25 years. In the area of safe driving and workplace injuries, ABF excelled in the first quarter. The road miles for accident safety measure was the best for our first quarter in the last 5 years, and it represents an improvement of over 40% compared to the same period last year. City driver hours per accident also improved versus last year and was one of the best first quarters in the last 5-year period. Hours per injury was the best for our first quarter in 5 years and over 20% better than last year. This reduction in injury frequency positively contrasts the very unusual compensation -- workers compensation increases ABF incurred in the year's first quarter.
ABF's cost structure is above market levels, primarily because of excessive pension payments made on behalf of union employees. ABF's union pension expense totaled $33 million in the first quarter of 2012. Based on information provided by a large multi-employer pension plans to which ABF contributes, about 1/2 of the payments ABF makes to union multi-employer pension plans go towards the benefits of employees who've never worked for our company. ABF continues to be an active participant in a broad coalition of stakeholders committed to developing a permanent solution to correct this cost and equity.
In addition, the company is seeking solutions to ABF higher cost structure through other initiatives. Our lawsuit against the Teamsters and various other parties related to 3 modification of ABF's union labor agreement granted exclusively to the YRC companies and not to ABF is ongoing. Following a favorable July 2011 ruling in the Appeals Court, ABF is currently waiting on the lower court's ruling regarding the defendant's motions to dismiss ABF's lawsuit. Also, ABF is preparing for negotiation of a new labor agreement prior to the conclusion of its current contract on March 31, 2013.
We face the challenges of our industry and our company every day, with the mindset toward improving our results and our shareholder returns. I think we're ready for some questions.