vel3">
<h3 id="transportation-system">Transportation system<a class="anchor" aria-label="anchor" href="#transportation-system"></a>
</h3>
<p>A <code>plain</code> cartographical map with a Roman transportation system made of settlements and terrestrial and maritime routes is possible with the <code>type</code> argument in <code><a href="../reference/plot.map.html">plot.map()</a></code>, or else by specifying with arguments <code>settl</code>, <code>roads</code>, and <code>shipr</code> for the settlements and