Changes

Roads are essential building blocks of a city. They carry not only traffic but also [[power]], [[water]] and [[sewage]] through your city. Roads must be constructed before [[zones]] and other [[ploppables|structures]] can be built. [[#Types of Roads|Types of Roads]] determine the [[density ]] of nearby [[zones]].When Sims are [[happiness|happy ]] enough (and there is enough space) the houses can upgrade to the next level of density by upgrading the roads. Low Density will give you houses. Medium Density will give you apartments. High density will give you skyscrapers.