I haven't seen the movie so I do not know what kind of road we are talking about but stone paved roads in Pompei had two groves: https://www.world-archaeology.

I haven't seen the movie so I do not know what kind of road we are talking about but stone paved roads in Pompei had two groves: https://www.world-archaeology.com/features/crosstown-traffic-driving-streets-pompeii/ https://www.world-archaeology.com/features/crosstown-traffic...