Answer:
Step-by-step explanation:
Form must follow function, otherwise the design of a structure is a failure. For example, the function (purpose) of a bridge is to provide a means of crossing an obstacle, such as a body of water, a valley, another road, etc. The form of the bridge must serve the purpose of providing safe and reliable passage of pedestrians, vehicles, trains, etc. A most basic form of a bridge is a beam design: simple, efficient, cost-effective, functional. If budget and public sentiment allow, additions to the design can be incorporated to make the bridge more aesthetically pleasing, but such additions do not add to the basic function.