What a travel time map shows
A circle drawn around a point assumes you can walk through buildings and swim across rivers. A travel-time area, often called an isochrone, follows the real street and path network instead. It stretches out along main roads, pinches in where a river has one bridge, and bends around railway lines until it reaches a crossing.
That makes it a more honest answer to questions like "what can I reach on foot in 15 minutes?" Two flats the same distance from an office can have very different shapes around them.
In Print Map Studio the area becomes an ordinary shape layer. You can restyle it, stack several of them, and export them as clean vector shapes in PDF, layered SVG and layered PSD.

