This picture is from Pompeii.  It shows an actual Roman street very similar to the way it would have looked during the Roman era.  In fact, the Romans made all the roads in the same manner.  

Santini, Loretta.  Pompeii and the Villa of the Mysteries.  Narni, Italia: Casa Editrice Plurigraf, 2000. 

Roads

     Tolosa, like any typical Roman city, had two main boulevards: the Cardo Maximo, which ran north-south, and the Cardo Decumenus, which ran east-west.  At the crossroad of these streets the forum was found.  


     Archaeologists know where the city insulae were located because they found remains of the sewers, which were always built directly under the streets.  At all pedestrian crossings on the streets stepping-stones were placed so that if it rained, the people would not get muddy.  


     Roads were also used as inter-city message and transport routes.  Toulouse was the crossroads for several inter-city roads.  This was part of its economic importance.  In all transit aspects, Tolosa was no different from any other city excluding minor idiosyncrasies.