suspension bridges

The design of the suspension bridge is pleasing to the eye, but its design is complex and convoluted. A suspension bridge is a bridge where cables are strung across whatever obstacle it happens to be and the deck is suspended from these cable.
Designing abridge is a difficult task that causes many engineers to become quite uneasy. The engineers get that uneasy feeling because once the bridge is built it’s there for a long time, and an unfortunate error of judgment is on view for all to see. Much depends on the location for the bridge to be built, how large a load it will have to carry, and so on. The designers ask themselves, and each other many questions. Will it cross a river, and have to stand up to strong currents and perhaps flooding? Will it be wide enough for the traffic? Do approach roads need to be built? Will it be high enough for ships to pass below? Will people like the way it looks? Most importantly, will it be safe under all conditions?
The decisio...