This video demonstrates how to add street marking. using OpenRoads ConceptStation.
Additional information on ConceptStation located here: https://www.bentley.com/en/products/product-line/civil-design-software/openroads-conceptstation
Click the video below to play it. To view in fullscreen mode, first click the YouTube link at the bottom of the video to launch the video on the YouTube site. Then, click the fullscreen button (rightmost button at bottom of video).