Route knowledge on an unplanned diversion
At 14:30, a driver is booked to work a four-car passenger service. The normal route is blocked by a failed bridge, and control has diverted the train over a 38 km single-line route the driver has not driven for three years. The diversion includes a 1 in 55 descending grade, a temporary speed restriction of 20 km/h over a bridge, and a station where the platform can accommodate only two cars. The driver's route card is out of date and does not show the temporary restriction. The conductor says, 'Everyone is going that way today, just follow the signals.' The driver is aware that the next route conductor is unavailable for at least two hours. The driver must decide whether to accept the diversion and how to manage the risks.
1. Should the driver accept the diversion? Give your reasoning.
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Route knowledge is not a formality; it covers signal positions, gradients, platform lengths, crossing points, and local hazards that a route card cannot fully replace. The driver has not driven this route for three years, the route card is out of date, and a 20 km/h temporary restriction is missing from it. The 1 in 55 descending grade and the short platform add specific risks. 'Following the signals' is not an adequate substitute because signals do not warn of the short platform or the bridge restriction. The driver should decline to work the diversion without a competent route conductor or a briefed, current route pack. If no conductor is available, the safe course is to ask control to cancel or reshuffle the service rather than proceed on inadequate route knowledge.
2. If a route conductor becomes available, how should the driver manage the short platform and the temporary speed restriction?
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Before departure, the driver should confirm the exact location of the 20 km/h bridge restriction and the braking point for it, taking account of the 1 in 55 descent. The driver should also confirm which two cars will be at the platform and whether selective door opening is available. If it is not, the driver should stop with the front two cars at the platform and make an announcement that the rear doors will remain closed, or arrange for station staff to assist. The driver should not rely on the conductor's general assurance; the stopping point and door plan should be agreed explicitly. During the descent, the driver should control speed before the restriction, not brake sharply at the board, and should use the route conductor's local knowledge for signal and stopping-point confirmation.
3. What should the driver do if the route conductor gives an instruction that conflicts with the driver's understanding of the route?
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The driver remains responsible for the safe operation of the train. If an instruction conflicts with the driver's route knowledge, the route card, or a visible speed restriction, the driver should stop or slow down and clarify before proceeding. The driver should state the specific concern, for example that the temporary speed restriction board is closer than the conductor indicated or that the platform stopping point is unclear. If the disagreement cannot be resolved quickly, the driver should contact the signaller or control for confirmation. The driver should not defer automatically to the conductor; the conductor advises on route knowledge, but the driver retains responsibility for braking, speed, and door release.