A pedestrian barrier is a device, tool or a method to take control of the pedestrians to help them avoid coming into contact with an event's arrangements or in case of emergency a risk of their safety and security does not arise.
The use of pedestrian barriers is often more for the safety, security and convenience of the pedestrians and is used when an outdoor event is taking place or in case there is any emergency i.e. fire or collapse of a building etc.
The barriers are specifically used as guidance to alternative arrangements in case the pedestrians are not able to access routine routes or facilities. Sometimes they are guided to the same facility or establishment through a different route and the barriers are used to guide them.
Generally local social agencies and government agencies such as road constructors use barriers to provide a safe way to pedestrians when a construction or repair work of a road, street or a building is in progress. A private constructor is also required as much to use pedestrians barriers as much as government contractors.
Often, these barriers are marked with red tapes or reflective material, especially at night so that pedestrians do not get confused while finding a safe way out of a street or road. Also, lights are used at night in front and along the route of these barriers to guide pedestrians.
When a barrier is established, a guide is generally present initially to guide the pedestrians about alternative routes to their addresses and destinations, and when public gets used to it they are let go on their own. These types of arrangements are often made during concerts and other temporary events, where public cannot find certain passes because of the crowd.
These barriers can be used a temporary or permanent arrangement. For example, in case of construction of a building the barriers are erected permanently for the time the building is ready for use. In case of road repairs the barriers are removed soon after the road is open to traffic. Also, barriers in case of walks and other events are removed soon after the event ends. The time for which these barriers are used largely depends on the duration of the event.