Car Park Railings (also commonly called car park barriers, guardrails, or safety railings) are essential safety and structural components installed in multi-level, rooftop, and open-air parking facilities. 

1.  Fall Prevention: 

Providing a critical physical barrier to prevent pedestrians, cyclists, and vehicles from accidentally falling off edges, ramps, or different levels of the car park structure. This is their most vital safety role.

2.  Vehicle Impact Protection: 

Acting as a buffer to contain vehicles within designated parking areas and traffic lanes. They help prevent vehicles from colliding with structural elements (like columns or walls), overshooting parking bays, or veering off ramps and edges during maneuvering. They absorb impact energy, minimizing damage to both the vehicle and the structure.

3.  Perimeter Security and Access Control: 

Defining the boundaries of the car park and deterring unauthorized access or vehicles from leaving designated areas. They can be integrated with gates or bollards for controlled entry/exit points.

4.  Traffic Guidance and Flow Management: 

Helping to visually channel vehicle traffic flow along designated lanes and ramps, improving organization and safety within the often-confined space of a car park.

5.  Pedestrian Safety: 

Protecting pedestrians walking along designated paths within or adjacent to the car park by separating them from vehicle traffic areas.