Statement Five people are killed an an accident between a tempo and a running train at an unmanned level crossing. Courses of Action I. The railway authority should immediately put permanent barricades on either side of tracks at the crossing, so that no vehicle can cross the tracks. II. The railway authority should immediately post an employee at the crossing round the clock to avoid such accidents.

• if only I follows
• if only II follows
• if neither I nor II follows
• if both I and II follow