First thing you have to consider is to know the size of the hole to where you are going to use the manhole cover. There are standard sizes of manhole covers together with its frame but the good thing is whenever you can't find the exact size available in the market to fit in the clear opening of the hole, there are manufacturers who offers custom manhole covers suiting to what you really need.
1. Weight Capacity Ensure that the carrier can support the total weight of your bikes, including any additional gear you might carry. Look for a carrier that exceeds your total bike weight to provide a margin of safety.
Environmental sustainability is also a growing consideration in the design of bollards. Many modern installations integrate environmentally friendly materials or incorporate features like solar-powered lights. This not only reduces the carbon footprint associated with urban infrastructure but also promotes green design principles within city planning.