Roman road from Trier to Cologne

[2] The route of the Roman road is described in the Itinerarium Antonini as passing through seven stations, whose distance is given in leagues.

1,480 metres[3] The later Peutinger Table describes the same places with the exception of Tolbiacum (Zülpich) and Belgica (Billig), but without the addition of the word vicus.

However, the entries about the route vary considerably from those of the Antonine itinerary and are often interpreted as transcription errors.

[4] [5] Recent research and archaeological surveys of a corridor up to 250 metres wide along the road have shown that at intervals of no more than every three or four kilometres, and in densely populated areas often as little as a few hundred metres, there were sites of various vici (settlements), mansiones (inns) and mutationes, (coaching inns), stationes beneficiarium (military road posts) and religious votive stones, immediately by the road.

This road infrastructure was encouraged by the cursus publicus, a sort of national postal system.