Circus (building) - Architectural Design

Architectural Design

The performance space of the Roman circus was normally, despite its name, an oblong rectangle of two linear sections of race track, separated by a median strip running along the length of about two thirds the track, joined at one end with a semicircular section and at the other end with an undivided section of track closed (in most cases) by a distinctive starting gate known as the carceres, thereby creating a circuit for the races. The Circus of Maxentius epitomises the design.

The median strip was called the spina and usually featured ornate columns, statues and commemorative obelisks. The turning points on either end of the spina were usually marked by conical poles, called the metae (singular: meta).

The performance surface of the circus was normally surrounded by ascending seating along the length of both straight sides and around the curved end, though there were sometimes interruptions in the seating to provide access to the circus or the seating, or to provide for special viewing platforms for dignitaries and officials. One circus, that at Antinopolis (Egypt), displays a distinct gap of some 50m between the carceres and the start of the ascending seating where there is apparently no structure. This appears to be an exception.

The great majority of circuses fit the description above. Those that do not display two different variations: that at Emerita Augusta (Mérida, Spain), where the carceres end is substituted by a slightly curved 'straight' end joined to the straight sides of ascending seating by rounded corners of ascending seating; and a few in which the carceres end is substituted by a second semi-circular end to produce an oval shaped arena. These latter circuses are normally small (Nicopolis (Greece) and Aphrodisias (Turkey)), and should probably be considered stadiums. The exception to this are the enigmatic traces of the huge oval circus near Montaperti (Italy) which appears to be somewhat unique in that, in addition to its unusual combination of dimensions and shape, is not, apparently, close to any contemporary Roman settlement.

There are similar buildings, called stadia, which were used for Greek style athletics. These buildings were similar in design but typically smaller than circuses; however, the distinction is not always clear. An example of this type is the Stadium of Domitian.