Thank you, Mr. Chairman. We appreciate the opportunity to meet with your committee today. We apologize that we were not able to meet with the committee sooner, but we trust you understand the challenges that a recent strike put on our operations.
I want to start by stating that safety is extremely important to us at CN. We welcome the chance to give you an overview of the measures we undertake to ensure that we do run a safe railway. I know that most of you are familiar with CN; however, given some of the information that has been circulating recently, I want to take a few minutes to make a few key points about our company.
CN was privatized in November 1995. In the intervening years, CN has acquired a number of railways in both Canada and the United States, including the BCRC, the Illinois Central, and the Wisconsin Central. We are a widely held company, with approximately 60% of our shares currently held by Canadian-based shareholders. Our chairman and the majority of our board are also Canadian. Our CEO, Mr. Hunter Harrison, is American and works out of our head office in Montreal. Our operations centre for North America is located in Edmonton, Alberta.
Safety is one of the five principles that guide CN's business, together with service, cost control, asset utilization, and people. They are the constants in our planning and operating decisions. They are both the business and the cultural context of this company. We're never satisfied with our safety record. I am, however, pleased to report that CN's Transportation Safety Board, or TSB, main track accident ratio decreased by 30% in 2006--110 in 2005, reduced to 75 in 2006.
Overall, when we include yards as well as main track, we experienced an 18% decrease. We also improved significantly with regard to the severity of the accidents. Half of these main-track accidents involved only one or two cars. This improvement had a dramatic effect on our bottom line as well, because derailments are expensive. In 2006, our derailment-related costs plummeted from $91 million to $48 million, as compared to the previous year. In addition, and most importantly, employee injuries in 2006 were down by 25%, which also represents a very significant improvement.
While there have been fluctuations from year to year and from quarter to quarter--for instance, there's no question that 2005 was not a very good year for CN--the trend line shows a clear improvement in CN's safety performance.
Our safety program is based on three pillars: people, process, and technology. The first pillar of CN's safety program is focused on people initiatives. These are programs aimed at transforming the way people work in developing a safety culture through training involvement, communications coaching, and recognition. An example of this is the introduction in 2006 of our employee performance scorecard. This is a system that ensures each employee's performance is graded and that he or she meets with his or her immediate supervisor at year-end and reviews performance as it relates to safety and other measures. This provides an opportunity for a two-way discussion; it provides an opportunity to identify and discuss together any areas of concern.
The second pillar is process. The key area here includes trend analysis, safety auditing, risk assessments, and contractor safety. Trend analysis allows us to identify top causes of accidents so that resources can be mobilized in the most effective and focused manner possible. Audits and efficiency tests are performed across our system by supervisors and audit teams. More than 300 efficiency tests are conducted each day across the CN system.
The third pillar of our safety program consists of technology initiatives where CN takes full advantage of technology to reduce risk. On the engineering side, we focus on rail flaw detection, track geometry testing, and slide and washout detectors. Ultrasonic rail testing has increased by over 60% over the past four years to about 120,000 miles per year, which means we inspect our core route four to ten times per year. This is much higher than the minimum regulatory requirement, which is once per year. Track geometry testing has also increased, and we are acquiring a new $5-million track geometry test car to further increase testing. We also use a wide range of state-of-the-art technology on the mechanical side of our business, which includes hot bearing detectors, hot wheel detectors, dragging equipment detectors, cold wheel detectors, wheel impact load detectors, and wheel profile detectors.
CN has one of the highest densities of these detectors of any railway in North America. For example, across North America, the six major railways have about 75 wheel impact load detectors. CN alone has 30 of these 75. All detectors are connected to a central location that monitors the data continuously on a 24-hour, seven-day-a-week, basis and enables us to spot developing trends and take proactive actions before incidents occur.
CN is also an industry leader in the safe handling of dangerous goods. In 2006, we hired one of the leading experts in North America to head up our department. This has led to the establishment of 11 new dangerous goods officer positions across our system who are fully trained and outfitted to respond to any dangerous goods situation.
We have also taken the initiative in setting up many joint exercises with local and provincial police, fire, environmental, and other responders.
The rail business is extremely capital intensive. This year CN's capital investments are increasing to $1.6 billion. About half of this investment goes toward track safety, with the replacement of rail, ties, bridges, and other items. We've been making this scale of investment in our system year after year to ensure that our plant is in top condition.
While we can make these investments because we want to protect our employees and the public at large, there is no question that at the end of the day they are good business as well. Operating a safe railway ensures that we can serve our customers efficiently, protect their products, keep our systems fluid to avoid service disruptions, and at the same time it saves the company and our shareholders a great deal of money. Starting at the top, our entire company is dedicated to running a safe railway.
Yes, absolutely, we've had some very high-profile derailments, accidents that understandably have raised public concern. However, overall, our record has been good, and the trend lines we'll share with you today indicate it's headed in the right direction.
We understand and appreciate your interest in these issues, and we'll be pleased to answer your questions.