Taroko National Park has world-class scenery. The Central Cross-Island Highway built in 1950, it is a famous route for tourism. Because the Park Management Bureau has the responsibility to protect tourists, tourists will see a lot of slogans along the Taroko highway to remind the danger of the falling rocks, warn the drivers and walkers ''please pass as soon as possible'', with a view to reducing the probability of tourists being killed by the falling rocks.