If I needed to do this, I could follow the video, but do not like the results for this purpose. Everything but the shape is distorted to the point it does not look real. I might use this method to create the basic shape, then fill it all at one go on an asphalt layer to avoid distorting texture, then I'd do a curved path for the center line and stroke that with dashes. My challenge is finding a way to get a dashed line to bend around a curve. Actually, that's getting any brush shape to rotate as it follows a curve. If that road is very long, defining a path with individually bent stripes would be untenable.
I am able to create a small rectangle object to use as a stripe component. When I copy that, select the clipboard image as a brush, and set spacing to 2.5 times the long dimension of the shape, I can use a rectangular selection to fill portions of the path. My shape was horizontal when I created it, so that works for the horizontal portion of the stripe. With a new selection, I rotate the brush 90° to fill the vertical part of the path. But the curve? That stymies me.
I am able to create a small rectangle object to use as a stripe component. When I copy that, select the clipboard image as a brush, and set spacing to 2.5 times the long dimension of the shape, I can use a rectangular selection to fill portions of the path. My shape was horizontal when I created it, so that works for the horizontal portion of the stripe. With a new selection, I rotate the brush 90° to fill the vertical part of the path. But the curve? That stymies me.