Learning to ride efficiently and safely in traffic is important. In the United Kingdom, many primary school children took the Cycling Proficiency Test, to help them cycle more safely. However, the Cycling Proficiency Test has now been superseded, for children, by 'Bikeability' and the National Standards for Cycle Training. In countries such as the Netherlands, where cycling is popular, cyclists sometimes ride in bike lanes at the side of, or separate from, main highways and roads. Many primary schools participate in the national road test in which children individually complete a circuit on roads near the school while being observed by testers.