Runaway Train !!!
Posted by: Don Atkinson on 09 March 2007
Runaway Train !!!
Its night. A group of railway workers have just loaded their trolley with 2 tonnes of steel when they accidently release the brake and the trolley starts rolling silently along the track which slopes downhill for two miles. The near-by signaller observes this all happen.
A mile and a half away is a right-hand fork (diverging junction), with the points set to the right. Beyond the junction, on the right hand track is a gang of 5 railway workers digging ballast in the four-foot (ie standing between the running rails). This is the route the runaway trolley will take. The trolley is silent and it will kill all five when it mows them down.
Beyond the junction, on the left-hand track is a single railway worker in the four-foot. This is the route the runaway trolley will take if the signaller throws the switch to re-set the points to straight ahead. His fate will be the same.
What should the signaller do? Should he throw the switch to save the five. Or should he leave fate alone?
PS the signaller and others simply can't contact either set of workers.
Cheers
Don
Its night. A group of railway workers have just loaded their trolley with 2 tonnes of steel when they accidently release the brake and the trolley starts rolling silently along the track which slopes downhill for two miles. The near-by signaller observes this all happen.
A mile and a half away is a right-hand fork (diverging junction), with the points set to the right. Beyond the junction, on the right hand track is a gang of 5 railway workers digging ballast in the four-foot (ie standing between the running rails). This is the route the runaway trolley will take. The trolley is silent and it will kill all five when it mows them down.
Beyond the junction, on the left-hand track is a single railway worker in the four-foot. This is the route the runaway trolley will take if the signaller throws the switch to re-set the points to straight ahead. His fate will be the same.
What should the signaller do? Should he throw the switch to save the five. Or should he leave fate alone?
PS the signaller and others simply can't contact either set of workers.
Cheers
Don