vector - How to draw roads?

How to draw roads in fireworks cs6?

In the next way: I paint a line/path and I obtain two paralell lines/paths Pasing from

To

And changing the "roads" with the central/path of the "roads"

This is very well explained for illustrator in this video https://youtu.be/fIJeGM2VOzM?t=464

How do I do this in Adobe Fireworks? If it's possible.