<div dir="ltr"><div><div>One additional thing you might use in differentiating paved vs unpaved is doing something like putting a dotted line down the middle of paved roads (like what they look like in reality), having kind of a grey patchy texture overlaid on the unpaved roads, to make them look bumpy, and then omitting both of these features for roads of unknown surface.<br>
<br></div>In this way the symbols are reminiscent of the real world concepts they represent and the map is more 'intuitive' leading to less reliance on the key and more understanding from people right from the first time they see it.<br>
<br></div>-AndrewBuck<br></div>