National Geographic : 1971 Aug
Interstate Highways do a better job of getting you anywhere, but here. Last year the accident rate on old System highways was more than double the Let's accident rate on the modern Interstate Befoi 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 Wec enough to push the Interstate Highway live in. C Caterpillar, CATERPILLAR CaterpillarCat andMareTrademarksof CaterpillarTractorCo. to completion without delay. get it finished. re more lives are. an make the world a better place to Caterpillarmachines will help.