<p>Modern name for an anonymous early-Republican road which led from Rome to the village of Collatia (Quilici 1990). Its starting-point was the *Porta Conlatina, a gate in the *Servian Wall, best identified as an early name for the *Porta Viminalis. It led SW from this gate, parallel with the *Anio Vetus along a well-attested roadway, called “Via Tiburtina” by Lanciani, <i>FUR</i> pl. 24. It was joined by the *Via Tiburtina and together they passed under an Augustan arch at the Aurelian <i>porta Tiburtina</i> (s.v. *Porta Tiburtina: Augustan Arch). This intersection was long considered the starting-point of the “Via Collatina” (Richardson; Lanciani, <i>FUR</i> pl. 25). It has also been argued that the road leading from the Porta Viminalis was unimportant (Patterson). However, the monumental Augustan arch is oriented on axis with the “Via Collatina”, not with the Via Tiburtina, an indication that the “Via Collatina” was especially important in the Augustan period. Beyond this Augustan arch to the E there was a minor N–S connecting road which led from the “Via Collatina” to the *Via Praenestina at the Porta Maggiore, the Aurelian <i>porta Praenestina</i> (Bellini, Corrente and Turchetti; Quilici 1963-64).</p>