The Transportation Safety Board of Canada (TSB) investigated this occurrence for the purpose of advancing transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.
Railway Occurrence Report
Rear-end Train Collision
Quebec North Shore and Labrador Railway
Freight Train No. FCS 45 and Train No. PH-475
Mile 131.68, Wacouna Subdivision
Near Mai, Quebec
14 July 1996
Report Number R96Q0050
On 14 July 1996, at approximately 1045 eastern daylight time, a Quebec North Shore and Labrador Railway (QNS&L) southward train collided with the tail end of a stationary train at Mile 131.68 of the Wacouna Subdivision. The last three rail cars of the stationary train derailed and were extensively damaged. The locomotive of the moving train was extensively damaged. The locomotive engineer of the moving train sustained minor injuries.
The Board determined that the collision occurred because the moving train was operated past a governing restrictive signal, at a speed at which the locomotive engineer was unable to stop short of the stationary equipment. The implementation of the major operational change to locomotive-engineer-only train operation without a comprehensive analysis of its impact and without the implementation of effective compensatory safety measures contributed to this occurrence.
Southward freight train No. PH-475 (train 475), crewed by a locomotive engineer and a locomotive engineer trainee, originated at Carol Lake, Labrador, Mile 36.6 of the Quebec North Shore and Labrador Railway (QNS&L) Northernland Subdivision, and was destined for Sept-Îles, Quebec, Mile 0.0 of the Wacouna Subdivision. Train 475 departed Carol Lake at 0340(1) and proceeded southward on the Northernland Subdivision for approximately 37 miles, entered the Wacouna Subdivision at Ross Bay Junction, Labrador, Mile 224.0, and continued southward for approximately 92 miles. At the advance signal to the north siding switch at Mai Station, Signal 132.6 at Mile 132.6, train 475 encountered a clear to stop signal indication, Canadian Rail Operating Rules (CROR) Rule 410. CROR Rule 410 states:
NAME INDICATION
Clear to Stop Proceed, preparing to stop at the next signal.
The locomotive engineer trainee made a minimum reduction automatic brake application and, shortly thereafter, the train experienced an undesired emergency brake application. Train 475 came to a stop with the rear end at Mile 131.68. The locomotive engineer contacted the rail traffic controller (RTC) by radio and advised him that train 475 had experienced an undesired emergency brake application and had stopped north of the north siding switch at Mai. He further advised the RTC that they could not recover the emergency brake application so he would be going back along the train to see what was wrong. Southward freight train No. FCS 45 (train 45), crewed by a locomotive engineer, departed Carol Lake at 0650, proceeded south on the Northernland Subdivision to Ross Bay Junction and continued south on the Wacouna Subdivision. At approximately 1030, the RTC contacted the locomotive engineer as the train passed the south siding switch at Eric Station, Mile 137.3, approximately 5.6 miles behind the tail end of train 475, and advised him that train 475 was stopped in emergency just before Mai. The locomotive engineer of train 45 acknowledged the transmission from the RTC and continued southward. At Signal 134.2, Mile 134.2, train 45 encountered a clear to stop signal. At the next signal, Signal 132.6, Mile 132.6, train 45 encountered a restricting signal, CROR Rule 426. CROR Rule 426 states: NAME INDICATION
Restricting Signal Proceed at restricted speed. The CROR definition of restricted speed reads as follows:
A speed that will permit stopping within one-half the range of vision of equipment, also prepared to stop short of a switch not properly lined and in no case exceeding SLOW SPEED.
NOTE: When moving at restricted speed, be on the lookout for broken rails. The CROR definition of slow speed reads as follows:
A speed not exceeding fifteen miles per hour.
In the vicinity of Mile 131.79, as train 45 negotiated a curve at approximately 30 mph, the locomotive engineer observed the rear of train 475 and initiated an emergency brake application. Thirteen seconds later, at approximately 1045, train 45 struck train 475, while travelling at approximately 20 mph. The locomotive engineer of train 45 remained in the locomotive cab during the impact.
QNS&L had instituted one-person crew train operation on 12 July 1996. The locomotive engineer of train 45 had operated trains north from Sept-Îles to Mai and Carol Lake alone and was on the return trip from Carol Lake to Mai at the time of the occurrence.
The locomotive engineer of train 45 sustained injuries to his left thigh, right knee and tail bone.
The last car of train 475 was damaged beyond economical recovery and the two cars ahead of it were extensively damaged. The lead locomotive of train 45 was severely damaged.
Train 475 consisted of 3 locomotives, 155 ore cars loaded with iron ore pellets and 1 empty ore car at the rear end. The train was equipped with a Digitair II end-of-train information system (ETIS). The end-of-train unit was mounted on the rear coupler of the last car. Reflectorized strips were applied to the end-of-train unit. A red reflectorized sign about 20 inches square was affixed to the rear-end ladder of the last car on the upper right-hand position as seen from behind. The train weighed approximately 17,450 tons and was approximately 5,600 feet in length. It had been operated without incident between Carol Lake and Mai.
Train 45 consisted of 2 locomotives, 15 loaded cars and 41 empty cars. It weighed approximately 2,100 tons and was approximately 2,650 feet in length. Train 45 received a successful brake test at Carol Lake before departure. It was operated without incident between Carol Lake and the occurrence site.
The Wacouna Subdivision extends north from Sept-Îles to Ross Bay Junction, a distance of 224 miles. From Ross Bay Junction, the Northernland Subdivision continues north to Carol Lake at Wabush, Labrador, an additional 36.6 miles. These subdivisions traverse remote territory. There are few public crossings between Sept-Îles and Wabush. Camps are maintained at various locations along the track to accommodate railway operation and maintenance personnel. The primary means of transportation throughout this territory is train or helicopter.
There are two sidings, two spurs and a back track at Mai for meeting, passing and storing trains. One siding is to the west of the main track and north of the bunkhouse; the other siding is to the east of the main track and south of the bunkhouse. It is common practice for southward trains arriving at Mai to be authorized to proceed south of the north siding switch, either on the main track or on the siding, up to the bunkhouse, to change crews. The bunkhouse is located at Mile 128.4. The north siding switch at Mai is at Mile 130.4. There is a distance of 2.0 miles between the north siding switch and the bunkhouse.
Approaching from the north, Signal 132.6 is located at the end of tangent track. It is a high-mast, single aspect signal equipped with an "R" letter sign and number identification sign. Both the number identification sign and the "R" letter sign were in good condition. Approaching Mile 131.68 (the point of impact) from the north, there is a three-degree curve to the left and a slight ascending grade of 0.2 per cent. Sight-lines from the point of contact north were limited by forest and track curvature to approximately 600 feet.

As a result of the collision, the last three cars of train 475 and the lead locomotive of train 45 derailed. The short hood of the locomotive was sheared off the frame and the cab was demolished, except for the small area encompassing the locomotive engineer's control console, seat and right-hand side wall up to the bottom of the window (see Figure 2).

The method of train control on the Wacouna Subdivision is the Centralized Traffic Control System (CTC) authorized by the CROR and supervised by the RTC located in Sept-Îles. Train movements are governed by signal indications. CTC has existed in its present form in Canada for approximately 45 years. CTC has been the method of train control on the Wacouna Subdivision since the track was built in the late 1950s. There was no form of automatic intervention associated with this method of train control, capable of maintaining positive train separation. Furthermore, there was no form of passive warning system associated with this method of train control to indicate a train's proximity to areas of restriction or other rolling stock.
The skies were clear and sunny, and visibility was good. The temperature at Sept-Îles, approximately 130 miles south, was 20 degrees Celsius.
Locomotive event recorder data from the lead locomotive of train 45 were recovered. Despite severe damage sustained in the impact, the event recorder provided a complete data download. The data indicate that, at a time of 1044:46.2, there was an operator-initiated emergency brake application. Train speed was recorded as 30.1 mph. Between 1044:46.2 and 1044:59.2, 13 seconds, speed slowed by 9.9 mph to a recorded speed of 20.2 mph. At 1044:59.3, recorded speed suddenly decreased to 11.6 mph and a message was recorded that indicated "recorder reset or powered up." At 1045:04, speed was recorded at 0.0 mph. The train travelled a recorded distance of 0.092 mile, approximately 486 feet, between the emergency brake application at 1044:46.2 and the recorded speed of 0 mph at 1045:04.
The event recorder data indicate various manipulations of the locomotive throttle and dynamic brake between a recorded time of 1033:31 and the emergency brake application, at a recorded distance of 8.32 miles. In the two miles before the collision, the locomotives were taken out of powering mode and put into dynamic brake mode. The train had slowed from a recorded speed of 45 mph to a recorded speed of 30.1 mph in this distance.
The locomotive engineer of train 45 and crew of train 475 were qualified for their positions and met fitness and rest standards established to ensure the safe operation of trains. The locomotive engineer of train 475 had operated trains on the QNS&L railway for over 20 years. The locomotive engineer of train 45 was also an experienced trainman with over 20 years of railway service.
The railway indicated that the change to one-person train operation was for competitive reasons. QNS&L management indicated that some of their competitors were operating with one-person crews and that other non-competitor railways, such as Amtrak, had some one-person crew operations. QNS&L had contacted Amtrak and New Zealand Rail to review how those railways had modified their operations for one-person crews. In the case of Amtrak, the railway has limited the length of run to four hours when a train has one person in the operating cab. New Zealand Rail operates with one person in the operating cab; however, all its trains are scheduled. Employees know as much as a year in advance when they will be working.
Before the implementation of one-person train operation, railway representatives gave presentations to the Railway Association of Canada (RAC) and the regulator, Transport Canada, specifying their plans to negotiate for one-person operation and the particulars of how they intended to operate in a one-person crew environment. They also reported that they advised Transport Canada that it was their intention to begin one-person crew operations at the successful completion of contract negotiations with their operating union, the United Transportation Union (UTU). The railway reports to have solicited comment from both organizations and that Transport Canada responded with an indication that the railway's proposal was sound. Transport Canada maintains that it was not advised of the railway's intention to commence one-person crew operations at the successful completion of contract negotiations. Transport Canada indicates that it assessed the proposal as sound and that it advised the railway that it would need to see a much more thorough proposal before giving a conclusive opinion. Transport Canada reported that it did not see an issue with respect to rules compliance. Transport Canada maintained that it advised the railway that any proposed operation was expected to be as safe as the existing operation. In addition, Transport Canada recalls that it raised concerns with respect to pre-departure job briefings, rear view mirrors on locomotives, reset safety control operation and pull-by train inspections. Correspondence from the UTU to Transport Canada expressed the UTU's concerns about the safety of the operation of trains with one person in the operating cab. The official reply conveyed Transport Canada's position at the time, ". . . there are no federal regulations designating the number of persons to be employed on a train. Rather, crew size is a matter to be negotiated between the railway company and the unions representing the operating employees." Transport Canada also reports to have advised the union that ". . . regardless of the crew size, railway companies must comply with all operating rules or seek exemptions from such rules by explaining how they can do so in a safe manner."
On 11 July 1996, QNS&L and the UTU signed a collective agreement that included provisions to operate selected trains with one person in the operating cab of a locomotive and, in some cases, one-person crews. The following day, the railway began operating trains as per the new agreement.
The new collective agreement includes the following changes:
Article 16.01
The number of hours an employee is required to work before exercising the right to request rest while en route was increased from 10 to 12. The number of hours rest an employee may book at an away from home terminal was reduced from 9 to 7.
Article 16.03
Employees in train service are permitted to request a 20 minute nap between their 10th and 12th hour on duty. They must make a request of the RTC sufficiently in advance so as not to affect train traffic. To the extent possible, the RTC will authorize the employee to stop at the next station.
The railway's preparation for one-person operation included identification of the CROR rules that normally require more than one crew member to comply with the rules and development of contingency plans to remain in compliance with one person in the locomotive cab. From this information, railway rules instructors developed a short training document and presentation. Locomotive engineers were required to attend an information session of approximately three hours' duration to discuss rules and other operating concerns before operating a train alone. There was no means of assessment used to evaluate the employees' knowledge of the information covered in these sessions. No exemptions to the existing operating rules were applied for by the railway. The railway indicated that CROR Rule 106 makes provision for the operation of trains with one person in the operating cab. CROR Rule 106, Crew Responsibilities, states, in part:
When a train is operated without a conductor, the locomotive engineer will perform the duties of the conductor.
The analysis of the tasks of operating crews, conducted by the railway, did not determine that job or equipment redesign were in order to provide adequate safety margins in one-person operations. Limited consideration was given to the radio communication, signal, or traffic control systems to ensure an equal or greater margin of safety in one-person operations.
On 12 July 1996, the locomotive engineer of train 45 attended a company training session on one-person crew operations from 1330 until about 1630. He then went home and retired at about 2100. He awakened at 0035 on 13 July and was called for 0130. He reported for work and departed the terminal at about 0215, arriving at Mai at about 0650. He booked off at 0920 and went to bed between 1000 and 1100, sleeping until about 1400. He was called for 1630, operated a train northward to Carol Lake and booked off at 2240 on 13 July 1996. He spent the night in quarters rented by the company in Labrador City, retiring at about 2330. He arose at 0550 and went to work for 0620. The collision occurred at about 1045 on 14 July 1996.
Operating crews were assigned work on the basis of first-in first-out. A crew clerk maintains a board listing all employees available for work. An employee who books rest is not available until the rest period has terminated. QNS&L operates between iron mines located in the Wabush/Labrador City area and Sept-Îles. Typically, a crew operates from Sept-Îles to Mai, going off duty at Mai. The railway maintains a bunkhouse at Mai complete with a kitchen and cook on duty 24 hours a day and independent sleeping quarters for train crews and other railway personnel. After the required time off duty has elapsed, a crew will be assigned to take a train further north to Carol Lake, near Labrador City. At Carol Lake, a crew typically goes off duty again. Once their rest has elapsed, they are eligible to be assigned to take a train south to Mai. After off-duty time has elapsed at Mai, a crew will depart Mai destined to Sept-Îles. The rotation typically takes about three days. The trains do not operate on a precise schedule and are frequently subject to delays. Crews are therefore subject to irregular hours and accurate prediction of times on and off duty is often impossible.
The bunkhouse facility at Mai has two sleeping wings designated for train crews, both of which have recently been renovated. The rooms in the sleeping wing are approximately 10 feet by 10 feet. Each room is equipped with a single bed, a desk, a telephone and a chair. Window shutters are provided to block out most of the light from the outside. The heavy wooden doors were assessed as reasonably effective at muffling sound from the outside hallway. The facility is operated by an independent contractor.
At Wabush, crews stay at a local hotel. The rooms are standard hotel rooms with bed, television, telephone and separate washroom. There is a restaurant in the hotel.
Individuals and organizations challenged by irregular work schedules can apply a number of fatigue countermeasures to help workers maintain alertness. Countermeasures available can include lifestyle adjustments, work schedule adjustments, sleep hygiene, strategic napping and careful use of caffeine. Judicious use of such countermeasures requires a commitment by both the workers and the organization and a level of awareness of the hazard posed by fatigue.
Although the railway studied the issue of operator fatigue prior to implementation, railway operating officers questioned on fatigue and fatigue countermeasures were unaware of some basic physiological and behavioural factors relating to fatigue and were not well informed on countermeasures or on how they could be successfully implemented. They did not know that most people are very poor judges of their own levels of fatigue.
The recently negotiated collective agreement between the railway and the operating employees union, the UTU, included a 20-minute napping clause. This clause did not include details of how an employee would be awakened if he fell into a deep sleep. It stipulated that employees could only exercise their right to take a nap between the 10th and 12th hour on duty and only after the train had cleared the main track, hand brakes had been applied, an emergency backup device had been connected to the air hose on the front of the locomotive and secured to the rail. The employees would then be able to sit in their seat and nap for 20 minutes. The napping countermeasure had been instituted without arrangements to provide a cot so an employee could assume a horizontal position for napping, without providing a means of blocking out light such as the type of light-excluding eye covering used by passengers in commercial air travel and no establishment of a "quiet" radio channel that the locomotive radio could be placed on to avoid distraction while napping.
When making and implementing plans to move and control a train, the success of the locomotive engineer's decisions and actions will greatly depend upon an accurate assessment and understanding of the situation over time, and an ability to select appropriate courses of action based on that situational awareness. Situational awareness does not happen instantaneously, especially under dynamic operational conditions, but develops on three different levels.(3) First, a person has to perceive the situational elements from information displays, communications, or other references. Then, this information must be integrated into an overall understanding of the situation by using past experience and knowledge of how the system works. Finally, the person projects the information into the future to make and modify plans as tasks are completed or delayed as new developments arise.
In general, it can be expected that poor or unsuccessful operator performances will occur if there are problems at any one of these situational awareness levels(4)
, i.e., although an optimum level of situational awareness cannot guarantee a successful performance, it can increase the probability of success. These problems could involve: a) the development of an incomplete or inaccurate situational awareness due to a failure to perceive certain information; b) the selection of an incorrect action for a given diagnosed situation due to a lack of knowledge or incorrect assessment; or c) a person's inability to carry out the correct action.
In the conventional multi-person crew operation, the minimum team consists of a locomotive engineer and a conductor, who work together and are both responsible for the safe and effective operation of the train movement. Their interactions, in terms of the identification and assessment of informational cues, the formulation of plans based on those cues, and the implementation and monitoring of their plans, create a line of defence which guards against the types of problems noted above. Through communication and cooperation, their partnership can promote team situational awareness and result in a greater opportunity for a successful performance. Shifting from conventional operation to locomotive-engineer-only operation will result in a reduction of situational awareness unless there are compensating factors implemented.
Locomotive engineers were supervised by three road foremen. From time to time, the supervisors would ride in the cab with operating crews to check proficiency and adherence to rules. There were no formal standards for frequency or content of these observations; however, the railway has indicated that there was a minimum requirement that crews be ridden with at least once annually.
Reportedly, a locomotive engineer could work for several years without being monitored by a supervisor.
All training for both operating crews and RTCs, except rules training, was by on-the-job training. There were otherwise no formal training plans or standards. Rules training for locomotive engineers was done in accordance with regulatory requirements for initial qualification and re-qualification. On-the-job training can be an effective method of acquiring skills, but without training plans and standards, there is no way of ensuring exposure to and mastery of all the necessary knowledge and skills.
The radio communication between the locomotive engineer of train 45 and the RTC concerning the location of train 475 demonstrated inconsistent adherence to some regulatory requirements for content and precision of radio communication between RTCs and operating crews.
CROR Rule 126 states in part:
In addition to the restrictions in Rules 14 and 602, radio must not be used to;
(ii) give information which may influence a crew to consider that speed restrictions are diminished. For instance, some RTCs tell operating crews about operational situations, such as stopped trains ahead, while others do not.
Regulatory requirements designed to ensure that critical information transmitted by radio is repeated by the receiving employee for accuracy were not consistently followed in this case. CROR Rule 123(c) states:
When verbal instructions or information pertaining to a train or engine movement are received by radio, such information must be repeated to the sender.
When the RTC informed the locomotive engineer of train 45 of the location of train 475, the transmission was not repeated back to the RTC. Rather, a form of positive acknowledgment was used.
In a large organization, a valid job description is a vital management tool. A job description is produced from job analysis and describes the tasks to be performed and the working conditions of a job. "If thoroughly and completely done, job analysis provides a deeper understanding of individual jobs and their behavioural requirements and, therefore, creates a firm basis on which to make job related decisions."(5) The value of job analysis has been affirmed by safety authorities:
There is enormous pressure to reduce costs while at the same time improving quality. In addition, humanitarian and liability concerns require greater levels of safety, both for those who do the work as well as for the customer or client. The single most useful tool to meet these objectives is systematically analyze the work which is done and to establish appropriate procedures or practices to ensure that it is consistently done the proper way.(6)
An undesired emergency brake application (UDE), or "kicker" as it is commonly known within the railway industry, is a phenomenon that occurs after a service brake application has been initiated at the automatic brake valve. Sometime after the brake pipe pressure begins to reduce at a service rate, usually within several seconds, an individual air brake control valve located somewhere in the train reacts abnormally to the service rate of reduction, resulting in an UDE on that particular car. Once one control valve has sensed an emergency reduction rate in brake pipe pressure, it propagates a further brake pipe pressure reduction throughout the train at an emergency rate, resulting in a full train emergency brake application. The North American railway industry has recognized UDEs as a problem and, over the last decade, a number of studies have been conducted. UDEs have been linked to a condition of over-sensitivity in certain air brake control valves.
QNS&L had recognized that they had a problem with UDEs on their iron ore trains. The railway, after having conducted their own testing, hired an independent consultant to address UDEs. The consultant attributed the QNS&L incidents of UDEs to the same over-sensitive control valves that had been identified within the industry at large. The consultant further linked the problem to the combination of several different control valves within the consist of QNS&L iron ore trains. A series of recommendations was provided by the consultant to QNS&L to reduce the incidence of UDEs. QNS&L had begun to implement the recommended changes and the incidents of UDEs had begun to decline.
The locomotive engineer of train 45 indicated that he believed that train 475 was approaching Mai for the station stop. He indicated that it had been common for southward iron ore trains to experience UDEs when stopping at Mai to change crews. Normally, on a southward train, the automatic brake would be applied closer to Mai than was the case with train 475; however, in this case, train 475 had been signalled to stop north of the north siding switch, a distance of two miles north of the station.
Neither the operation of train 475 nor the role of the RTC relative to the operation of train 475 was causal to the accident. The operation of train 45 did not conform to the signal indication and the locomotive engineer was operating his train at a speed that did not permit him to stop short of the stationary equipment. The analysis focuses on the sequence of events leading up to the collision, the factors that may have influenced the decision-making process of the locomotive engineer of train 45, and the absence of a comprehensive systems approach to the major operational change to locomotive-engineer-only train operation on QNS&L.
The locomotive engineer of train 45 was aware of the difficulties the railway had been experiencing with UDEs. When the RTC informed him that a train was stopped in emergency north of the north siding switch at Mai, he did not find the situation unusual and concluded, on the basis of his experience, that the train was stopped further south than it actually was. This was not consistent with what the RTC had said, but in the mind of the locomotive engineer, that is what the RTC meant. The locomotive engineer's assessment of the situation was inaccurate. He did not repeat the RTC's transmission regarding the location of train 475 to the RTC nor did the RTC request a repeat, so the transmission was not verified by either of the communicating parties. There was no one else in the locomotive cab or otherwise privy to the locomotive engineer's resultant actions who could have intervened to correct his perception. Elimination of the requirement for other employees to be in the locomotive cab removed a line of defence against the type of perception error that occurred in this instance.
Had the RTC not informed the locomotive engineer of train 45 that a train was stopped in emergency near Mai, the locomotive engineer would have had only signals 134.2 and 132.6 to provide information about conditions on the track ahead. The clear to stop signal (Signal 134.2) and restricting signal (Signal 132.6) provided little information for the locomotive engineer to use in updating his situational awareness or mental model of the situation; however, these indications alone would have prescribed the action to be taken. The availability of additional, although misinterpreted, information led the locomotive engineer to believe that it was safe to maintain a higher rate of speed than prescribed by the signal indications. In a one-person environment, clear, unambiguous communication is critical because the sole operator has no backup in case a piece of information is missed, unclear or misinterpreted. The dissemination of all available, pertinent information to the appropriate persons is an issue that has been recognized in the air and marine modes of transportation in the form of Crew Resource Management and Bridge Resource Management respectively. Essential to the success of these programs are the establishment of and adherence to specified methods of transmission and verification. When these processes are not in place, there is a greater risk that a piece of information could be misinterpreted. While the RTC's intentions in advising the locomotive engineer of the location of train 475 were sound, the methods employed in verification of that information were not. Although the railway has established verification procedures when information is transmitted by radio or telephone (that were not adhered to in this instance), there is no formal Cab Resource Management program.
Regardless of the locomotive engineer's interpretation of the RTC's radio transmission, CROR Rule 426 (Restricting Signal) clearly required the locomotive engineer to reduce speed to a maximum of 15 mph on passing Signal 132.6. The locomotive engineer did not do this. He believed that, since he knew where the train ahead was stopped, he could continue at a higher speed, and stop as required. He was engaged in a series of locomotive control adjustments approaching the point of impact. As he rounded the curve and the rear end of train 475 came into view, he acted almost instantaneously in placing his train brakes in emergency. This action slowed his train by approximately 10 mph and undoubtedly reduced the severity of the impact.
The empty hopper car on the tail end of train 475, being much lighter than the loaded cars ahead, lifted at impact and caused most of the damage to the lead locomotive of train 45, locomotive 320. The raised empty car sheared off the short hood and cab of the locomotive, except for the locomotive engineer's control stand and seat and the bottom half of the right-hand side wall. The area of the locomotive engineer's workstation was relatively well preserved. The locomotive engineer elected not to detrain despite the fact that some 13 seconds elapsed between the emergency brake application and impact.
Management's responsibilities include an obligation to provide training and supervision which encourage adherence to procedures and discourage short cuts. QNS&L road foremen were not required to meet any formal standards for frequency or content of proficiency check rides with operating crews; however, there was an unwritten philosophy is this regard. While it is not possible to state whether maintaining a higher-than-authorized speed is a frequent or rare event, the need for training and supervisory practices to ensure adherence to rules is even more critical in a one-person operation than in a team operation because the opportunity for checks for accuracy of perception and interpretation of information and cues is removed.
Locomotive-engineer-only train operation represents a fundamental change in the Canadian railway industry. Although it is true that there are scattered examples of locomotive-engineer-only commuter and passenger train operations, QNS&L is the first long-haul freight railway in Canada to attempt locomotive-engineer-only train operations. Most trains in Canada are operated by two- or three-person crews. The locomotive engineer operates the locomotive. The conductor has overall responsibility for the train, and the conductor and the third crew member perform off-train work, such as coupling and uncoupling cars and lining switches. In conventional multi-person crew operation, the locomotive engineer does not work in isolation. There is at least a second or perhaps even a third person beside the locomotive engineer tasked to identify initially and then confirm and assess perceptual information, formulate and assess plans based on such information, and subsequently implement and monitor these plans. Through these interactions, they are able to help develop and maintain each other's situational awareness. In QNS&L's locomotive-engineer-only operations, a line of defence was removed without compensatory safeguards in terms of equipment, procedures or training set in place.
Several agreed-upon contractual provisions actually work against compensating for the removal of the other crew members from the operating cab of the train: reducing the amount of rest a locomotive engineer can take at his "away-from-home terminal" from nine hours to seven hours, and restricting locomotive engineers from obtaining relief en route until they have been on duty for 12 hours as opposed to 10 hours. These changes point to a lack of understanding of the fundamental effects the change to locomotive-engineer-only operation was likely going to have. Social interaction between people is a proven countermeasure against fatigue. Yet, the fact that locomotive-engineer-only train operation greatly reduces the opportunity for the locomotive engineer to interact socially is not recognized or compensated for. Napping is a recognized countermeasure against fatigue and was used as one of the test countermeasures in the CANALERT '95 study. Representatives from the QNS&L attended a presentation on the CANALERT '95 study from which they incorporated their napping philosophy. In order for napping to be effective, the CANALERT '95 study included several essential preparatory steps. A mattress that could be rolled out on the locomotive floor was provided to enable the locomotive engineer to assume an appropriate resting position. Light blocking visors were provided to be worn by the locomotive engineers while napping. A designated radio channel was established to eliminate disturbing noise and to enable RTCs to wake the locomotive engineers at the completion of the nap. QNS&L did not include these preparatory steps.
Each of these points indicate that QNS&L instituted a major operational change without a comprehensive analysis of the effects that change was going to have on its operation. In order to achieve the railway's goal safely, it was necessary to obtain a thorough understanding of the current job functions, predict the ramifications of the operational change to the entire operating system, and make whatever changes were necessary to ensure that employees could perform the job safely under the new operating conditions.
Presentations given by QNS&L to Transport Canada gave an advance look at the approach QNS&L was going to take in achieving locomotive-engineer-only train operations. Despite the opportunity this presented for Transport Canada to enhance the railway's approach to a major operational change that would clearly have safety implications, constructive criticisms offered were limited. Transport Canada's recollection of the nature and scope of comments offered differed greatly from the railway's recollection of those comments; however, regardless of their content, in the end, they had little positive effect.
Specific elements of CROR Rule 106 that refer to the locomotive engineer assuming the role of the conductor were interpreted by the railway as appropriate regulatory provisions to operate locomotive-engineer-only trains. These provisions empower the locomotive engineer to make necessary decisions and take necessary action concerning the train when the conductor is temporarily indisposed. Many operating rules are purposely vague and non-prescriptive to allow responsible application in a wide range of circumstances. QNS&L used the flexibility built into this rule to suit its needs when this was clearly not the intent of the subject provision.
In the 48 hours before the accident, the locomotive engineer had obtained about 13 hours of sleep, at least 3 of which were between 1000 and 1400 on 13 July. Sleep obtained during this time period is often of poor quality and less likely to be restorative. Human sleep needs over a period of 48 hours would normally be satisfied by between 15 and 17 hours of sleep obtained in two overnight episodes. Although the numerous adjustments to locomotive controls leading up to the collision would seem to indicate that the locomotive engineer was alert, the role that fatigue may have played in his perception of information and the subsequent decision-making process cannot be dismissed.
The operation of a train with one occupant in the operating cab is not inherently unsafe. There are many examples around the world where trains are operated safely with one occupant in the cab. There is, however, cause for concern as to the extent to which QNS&L compensated for the safety implications of a crew reduction to one person in the operating cab.
The collision occurred because the moving train was operated past a governing restrictive signal, at a speed at which the locomotive engineer was unable to stop short of the stationary equipment. The implementation of the major operational change to locomotive-engineer-only train operation without a comprehensive analysis of its impact and without the implementation of effective compensatory safety measures contributed to this occurrence.
Shortly after this collision, Transport Canada (TC) restricted QNS&L from operating any trains with a locomotive engineer only until QNS&L had received appropriate exemptions from the CROR. The railway requested exemptions from specific operating rules on 26 July 1996 to re-establish locomotive-engineer-only train operations. In its letter of reply on 26 August 1996, TC stipulated 13 specific safety-related conditions that had to be met before the exemptions could be granted. The railway met the conditions and the appropriate exemptions were granted on 24 April 1997. Locomotive-engineer-only train operations recommenced on 17 July 1997. Furthermore, a working group was formed comprising headquarters and regional TC staff, representatives of QNS&L and the UTU. As a result of group discussions, consensus was met on proposed changes to the current operating practices that would ensure that locomotive-engineer-only train operations would be as safe as an equivalent multi-employee operation.
There were more than 65 improvements outlined by the working group; some of the more significant ones follow:(7)
This report concludes the Transportation Safety Board's investigation into this occurrence. Consequently, the Board, consisting of Chairperson Benoît Bouchard, and members Maurice Harquail, Charles Simpson and W.A. Tadros, authorized the release of this report on 21 January 1999.
Request for Exemption to Regulations
QNS&L Commitments to be Completed Prior to Implementation of One Employee Train Operations
CROR Canadian Rail Operating Rules
CTC Centralized Traffic Control System
ETIS end-of-train information system
IOC Iron Ore Company of Canada
MED mechanical emergency device
mph mile(s) per hour
OSH Occupational Safety and Health
PDD Proximity Detection Device
QNS&L Quebec North Shore and Labrador Railway
RAC Railway Association of Canada
RSC Reset Safety Control
RTC rail traffic controller
TC Transport Canada
TSB Transportation Safety Board of Canada
UDE undesired emergency brake application
UTC Coordinated Universal Time
UTU United Transportation Union
1. All times are eastern daylight time (Coordinated Universal Time (UTC) minus four hours) unless otherwise stated.
3. M.R. Endsley (1994a). Situational awareness in dynamic human decision making: Measurement. In Situational Awareness in Complex Systems, Proceedings of a CAHFA Conference, Feb 1-3, 1993, Daytona Beach, FL: Embry-Riddle Aeronautical University Press, pp. 79-97.
4. M.R. Endsley (1994b). Situational awareness in dynamic human decision making: Theory. In Situational Awareness in Complex Systems, Proceedings of a CAHFA Conference, Feb 1-3, 1993, Daytona Beach, FL: Embry-Riddle Aeronautical University Press, pp. 27-58.
5. Wayne F. Casio (1982). Applied Psychology in Personnel Management, Reston, VA: Reston Publishing Company Inc.
6. Frank E. Bird & George L. Germain (1985). Practical Loss Control Leadership, Loganville, GA: Institute Publishing.