National Geographic : 1971 Dec
Interstate Highways do a better job of getting you anywhere, but here. Last year the accident rate on old highways was more than double the accident rate on the modern Interstate Highway System. In fact every thousand miles of the Interstate freeway in use today saves 150 to 200 lives each year. That adds up when you consider there are about 30,000 miles of Interstate now open. But we still have 12,000 miles left to finish. We could be saving 2000 more lives each year. That alone is reason enough to push the Interstate Highway System to completion without delay. Let's get it finished. Before more lives are. fT We can make the world a better place to live in. Caterpillarmachines will help. e CATERPILLA Caterpillar.Cat and areTrademarksof CaterpillarTractor Co.