Since motor veheicles has been using as transportation, there are increasing lots of motor veheicles accident every single days which cause lots of opeple died or injured. Therefore while some believe that controlling lower the speed limit will lead to maximum road safety, others believe that there are mumeous other ways to improve road safety. Lowering the speed limit might be helped the road safety. However, there are many ways to improve road safety such as educaional campaigns, practice defensive driving habits . I believe that the latter is not only better enhanced for road safety but also more effective way in general.