Rail Safety Advisory Letter 617-02/14
Reported malfunction of transitway automatic crossing protection
Place du Centre
200 Promenade du Portage
25 February 2014
His Worship Jim Watson
Mayor, City of Ottawa
110 Laurier Avenue West
Dear Mr. Mayor:
At 0832 EDT on 18 September 2013, westward VIA passenger train No. 51 (the train) departed Ottawa VIA Station on time and proceeded westward en-route to Toronto. At 0847, OC Transpo Double Decker (DD) Bus No. 8017 (the bus) departed the OC Transpo Fallowfield Station on the OC Transpo Bus Transitway (Transitway). At 0848, while proceeding at about 47 mph, the train entered the Transitway crossing, located at Mile 3.30 of VIA Rail's Smith Falls Subdivision (the crossing) and was struck by the northbound bus. As a result of the collision, the front of the bus was sheared off. The train, comprised of 1 locomotive and 4 passenger coaches, derailed but remained upright. Among the bus occupants, there were 6 fatalities, 5 serious injuries and 30 minor injuries reported. No VIA crew members or passengers were injured.
The Transitway is a 2-lane asphalt road that is restricted to transit (bus) traffic. It extends from the OC Transpo Fallowfield Station for 812 feet (247.5 m) eastward towards Woodroffe Avenue. From that point, the Transitway transitions into a left hand curve (in the direction of travel) that turns northward where it runs parallel and adjacent to Woodroffe Avenue (see Appendix 1). From the stop sign at Fallowfield Station, the roadway speed limit is 50 km/h Footnote 1 up to just north of the crossing, where the speed limit changes to 90 km/h. Traffic on the Transitway comprises about 1000 buses per weekday.
The Smith Falls Subdivision consists of single main track that extends from near the Ottawa VIA Station (Mile 0.0) to Smith Falls, Ontario (Mile 34.40). Train movements are governed by the Centralized Traffic Control System as authorized by the Canadian Rail Operating Rules (CROR) and supervised by a Rail Traffic Controller (RTC) located in Dorval, Quebec. About 14 passenger trains per day operate over the crossing. The authorized train speed in the vicinity of the crossing is up to 100 mph. However, trains departing VIA's Fallowfield Station are restricted to 10 – 15 mph until they are clear of the crossings at Woodroffe Avenue and Fallowfield Road, respectively. Likewise, trains arriving are slowing for the stop at the station.
The crossing traverses the Transitway at a 50 degree angle. It is equipped with Automatic Warning Device (AWD) protection that includes flashing lights, bells, gates and constant warning time track circuits. Based on the data download from the signal bungalow, it was determined that:
- the crossing lights, bells and gates were activated about 47 seconds prior to the accident;
- once activated, the crossing lights flash/bells sounded for about 12 seconds before the gates began to descend;
- it took an additional 12 seconds for the gates to fully deploy; and
- the gates were fully horizontal for 25 seconds prior to impact.
On 11 February 2014, OC Transpo reported a malfunction of the VIA Crossing AWD protection at the Transitway crossing. This incident involved 3 OC Transpo buses. This type of incident is not normally reportable to the TSB. However, in light of the accident and in response to heightened public concern, the TSB followed up on the incident as part of its ongoing investigation (R13T0192). Based on information collected from OC Transpo, VIA Rail and the crossing signal bungalow, the following sequence of events Footnote 2 was established. At about:
“Automatic warning devices defective at public crossing at grade mile 3.28 and mile 3.30 Smiths Falls sub. Stop before fouling and provide protection by a crew member until crossing fully occupied.”
“gate up”contacts and verified that the internal heater for the south gate signal box was working.
Based on the collected information, the following observations were made:
The crossing AWD functioned as designed. While crossing signals are generally reliable, frost on contacts can periodically cause activation problems. However, the system is designed to
“Fail- Safe”. In this situation, the frost on the south
“gate up”contacts prevented the activation of the south gate after the passage of VIA 39. With the south gate remaining down, the system
“Failed Safe”as the lights and bells remained activated to warn road vehicles that it may not be safe to traverse the crossing. The lights and bells remain active until the system either recovers or is repaired. In this situation, the system recovered by itself at 21:56, after the buses had passed but before the Signal Maintainer arrived.
Between the time that VIA 39 had passed (21:46) and the system recovered (21:56), the 3 OC Transpo buses that remained on the Transitway had traversed the crossing. To accomplish this, OC Transpo personnel (OC Transpo Control, 3 drivers and 2 Transit Supervisors) each took what, at first glance, can be considered reasonable steps to minimize the risk at the crossing. However, there was still some risk in the activities undertaken.
OC Transpo Control re-routed traffic and then called VIA Rail. The VIA Rail RTC issued a GBO at 22:00, but this information was not relayed back to OC Transpo nor was it required to be. With no railway track protection in place, all 3 buses had traversed the crossing while at least one Transit Supervisor accessed the crossing and manually tried to lift the south gate while crossing protection was activated.
Railway crossings are railway property. Trains have the right- of- way and can appear at any time. No person should access live tracks without proper railway protection or attempt to lift crossing gates that have been activated and deployed.
The south gate remained down while the north gate recovered and was upright. All parties involved assumed that the south gate should be up. Although rare, there are also circumstances where a gate may not come down. Without additional information from the railway, there is no way to determine which gate is in the wrong position. In these situations, traversing a crossing before a gate comes down could place the travelling public at risk.
The first bus driver on the scene took appropriate action by stopping the bus, reporting the incident and waiting for assistance. OC Transpo Control took a safe course of action by re-routing all transit traffic until the situation was resolved. Otherwise, OC Transpo had no Standard Operating Procedures in place to deal with this type situation. Consequently, there was no track protection in place, the driver of each bus took a different action to negotiate the crossing and the Transit Supervisors may have placed themselves at risk.
Although the parties involved took reasonable steps to minimize the risk at the crossing and there were no adverse consequences, it would appear that there are opportunities to improve safety. With this in mind, OC Transpo, in conjunction with VIA Rail, may wish to develop and implement Standard Operating Procedures to ensure safe operations when unusual activations or malfunctions of crossing automated protection occur.
We would appreciate if you can inform us of any safety measures you plan to implement. We will take these measures into consideration as part of our ongoing investigation.
Original signed by
Mr. Luc Bourdon,
Mr. Kent Kirkpatrick
City of Ottawa
Mr. John Manconi
General Manager Transit Services
City of Ottawa
Ms. Jean Tierney
Safety, Security & Risk Management
VIA Rail Canada Inc
Mr. Marc Tessier
Corporate Security & Regulatory Affairs
VIA Rail Canada Inc.
Mr. Nicolas Panetta
Manager Risk Management
VIA Rail Canada Inc.
Appendix 1 – Site Diagram
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