The following items come in White, Yellow, Red and Blue:

Paint roller:
Simple item, using this item will allow you to place simple stripes in the middle of a block.

Side paint roller:
Another simple item, using this item will allow you to place simple stripes on the side of a block.

Arrow paint roller:
This item allows you to place 7 arrow patterns on your roads, use [Sneak] + [Use(Right click)]/[Destroy(Left click)] to toggle between arrow patterns to place.

Extra paint roller:
This item allows you to place 11 extra patterns on your roads for adding just that little bit of extra detail, use [Sneak] + [Right click]/[Left click] to toggle between extra patterns to place.

Spraying can:
Not happy with the color of your stripes but you don't want to place them all over again? Craft this item in the color you want them to be and [Use(Right click)] them on your stripes.

Bucket of road paint:
If you frequently change stripe colors but you don't want to keep all items in your hotbar you can craft a bucket of road paint and place it anywhere in the world, then [Use(Right click)] your item on it and paint it in the new color. Using a supported dye on the bucket will change the paint to the dye color.

Box of paint rollers:
If you wish to only carry one roller but you want to switch every now and then, craft this block as it's more than decorative. [Use(Right click)] your item on the box to switch between the 4 basic paint rollers at will.

The following items can be recolored without any dye needed, or only have one color:

Tar:
To make your roads look like actual roads, you can craft some tar with cobblestone and ink.

Paint scrapper:
You cannot remove paint with paint rollers, and paint stripes aren't easy to remove. [Use(Right click)] the paint scrapper on stripes in survival mode to instantly remove them.

Master paint roller:
A combination of all rollers in all colors in one, by [Sneak] + [Using(Right click)] this item you'll open the 'Selection Screen', here you can select a color and any available stripe to set configure your master paint roller to the correct pattern. The quickest and easiest way.

Planner paint roller:
The ultimate tool for painting roads quick and easy is the planner paint roller, by [Sneak] + [Using(Right click)] this item you'll open the 'Quick Building Planner' where you can draw a road plan with any of the available stripes in any of the available colors. Simply click a color and a stripe and then click in an empty spot so set that up. You can turn your stripe around by clicking your selected stripe to the right and you can clear a stripe by clicking it again to the left part of the screen.
After planning your road you can use the planner paint roller to paint a max of 7x7 blocks at once.

More information, including tutorials and pictures, can be found HERE.

Roadworks 2