A couple examples of Roman Arches represents the advancement in technology and power to Rome
Arches were important to the construction and technology of water transportation in ancient Rome. This system represented power for their empire because they were able to control the direction of the water. This also corresponds with the idea of mapping out cities or buildings with walkways providing a space where we are to walk.
The use of arches was a big step forward in technology for the Romans because they were able to support more weight and make much longer bridges across an area because the arches were much wider than columns so this hollowed out excess weight and the weight from the height of stacked arches was pushed to the sides and directed down the center of the vertical axis. This is much more economical than the use of columns because it would have taken about four to five columns to hold up the weight of a distance that one arch supports.
This is an example of to archways before an entrance. These arches are not holding anything up but themselves; however, the represent how the technology of an arch uses them to distribute weight through the sides.