the Arch of Trajan with a single archway, and without bas-reliefs, erected in his honour in 115 by the Senate and Roman people., to honor the emperor who had made "the entrance to Italy safer" (tutiorem accessum Italiae), as can be read in the inscription on the arch.

Ancona and the Arch of Trajan are depicted in Trajan's Column, with the imperial fleet departing for the Second Dacian War and Trajan haranguing