Use Multiple Strokes in Appearance

Here's a great way to use multiple strokes without creating multiple objects. Draw your path and in the Appearance palette (Window>Appearance), use the flyout menu to Add New Stroke. Double-click on each stroke in the Appearance palette and adjust the stroke width, color, and stacking order (using the Stroke palette, Color palette, etc.) to get the effect you want. (In our example, we chose a white, 5-point stroke and placed it above our wider 10-point stroke.) If you are working with multiple objects and need to get the "intersecting streets" look, select all the paths and press Command-8 (PC: Control-8) to create a compound path.