CCTV or Closed Circuit Television Cameras are cameras that output their recording to a small set of monitors rather than broadcasting or producing cinemas. CCTV has a variety of applications like security and surveillance, monitoring critical patients, monitoring factory and office activities, home security and monitoring people’s activities in a public transport system including railway stations and airports.

Security cameras in railway stations and airports can act as an eye for criminals and wrongdoers like smugglers, drug peddlers and people involved in illegal trade. Police can watch the footage of these transit points to find out where the criminals are going and in which area they might be in.

Surveillance cameras in Railway stations and airports can also be able to track and stop the movement of kidnappers and people involved in human trafficking. Experts can look for signs that reveal whether a particular person has been forced to accompany someone and catch the criminal red-handed.

Surveillance cameras also find their usage in tracking lost objects in the busy transit points and can help a person recover the items later.

CCTV cameras can help prevent accidents by letting the authorities know and take proper action when someone crosses the safety lines in a railway station.

Thus we see that there are various uses of CCTV cameras in transit points, which is why they are very common nowadays in railway stations, bus stops and airports.