In about 1960, Danish planning and traffic advisers were brought in to assist with the new Reykjavik town plan. The plan classified streets by traffic vol­ume, and aimed to separate vehicles from pedestrian traffic in new residen­tial areas. No more tall apartment blocks were to be built, and it was recommended that residential blocks be no more than three storeys. These principles were applied to the Fossvogur, Árbær and Lower Breiðholt districts, whick were all developed in the 1960’s.