With all the post-war growth came growing pollution of the lakes and rivers that provided much of beauty that had been Seattle's appeal to its recent immigrants. Also, the sprawl constantly demanded more roads, since the ones already built had terrible traffic. Jim Ellis and other Seattle natives, anxious to preserve the city in which they grew up, came together to institute the Metropolitan Problems Committee, or METRO, intended to manage and plan the metropolitan area. The original, comprehensive METRO regional plan was defeated in a vote by the suburbanites;