 this routes in the transportation system.</p>
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<div class="sourceCode" id="cb9"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="co"># settlements and main roads</span>
<span class="fu"><a href="../reference/plot.map.html">plot.map</a></span><span class="op">(</span>type<span class="op">=</span><span class="st">"plain"</span>, settl<span class="op">=</span><span class="cn">TRUE</span>, roads<span class="op">=</span><span