One of the most critical functions of interior bollards is safety. In high-traffic areas, where there is a mix of pedestrians and vehicles, the risk of accidents increases significantly. Bollards act as a physical barrier that helps prevent vehicles from straying into pedestrian zones, thus reducing the likelihood of collisions. For instance, in parking garages, bollards can outline pedestrian walkways and prevent vehicles from entering restricted areas. Their presence is a simple yet effective solution to enhance safety in dynamic environments.
Manholes are usually round, primarily because roundness is the best shape to resist the compression of the earth; covers are round because they are easier to manufacture than square or rectangular shapes, they are easier to move by rolling, and they can't fall into the opening.[5] But in the United Kingdom they are nearly always square, or rectangular, in shape, at least at street level. Manholes can also be found in a triangular shape (e.g. in Cambridge, and surrounding villages).[6]
Design Considerations
Aesthetic Value
bollard pole
Besides posing safety hazards, broken drain covers can also have negative effects on the environment. When debris and pollutants enter the drainage system through broken covers, they can clog the pipes and lead to blockages. This can result in the overflow of wastewater, which may contribute to water pollution. Such pollution can have dire consequences for local ecosystems, harming wildlife and potentially contaminating drinking water sources.
