Translate the following English sentence to French:
"The newly reviewed directive will do a lot to improve road safety if its provisions are complied with properly and penalties can be imposed for breaches, penalties that are effective, along the right lines and which will serve as a warning."
La révision de la directive augmentera de façon notable la sécurité routière si l' on en observe les dispositions comme il se doit et si on peut fixer en cas d' infraction des sanctions efficaces, proportionnées et dissuasives.