The Bijlmermeer or colloquially Bijlmer is one of the neighbourhoods that form the Amsterdam Zuidoost ('Amsterdam South-East') borough (or "stadsdeel") of Amsterdam, Netherlands. To many people, the Bijlmer designation is used to refer to Amsterdam Zuidoost and Diemen Zuid as a pars pro toto. The other neighbourhoods in Amsterdam Zuidoost are Gaasperdam, Bullewijk, Venserpolder and Driemond. The Bijlmermeer neighbourhood, which today houses almost 100,000 people of over 150 nationalities, was designed as a single project. The original neighbourhood was designed as a series of nearly identical high-rise buildings laid out in a hexagonal grid. The apartments were meant to attract a suburban set, rather like condominium housing. The buildings have several features that distinguish them from traditional Dutch high-rise flats, such as tubular walkways connecting the flats and garages. The blocks are separated by large green areas planted with grass and trees. Each flat has its own garages where cars can be parked. The Bijlmer was designed with two levels of traffic. Cars drive on the top level, the decks of which fly over the lower level's pedestrian avenues and bicycle paths. This separation of fast and slow moving traffic is beneficial to traffic safety. However, in recent years, the roads are once again being flattened, so pedestrians, cycles and cars travel alongside each other. This is a move to lessen the effects of the 'inhuman' scale of some of the Bijlmer's designs. It is felt a direct line of sight will also improve safety from muggers. Because of the Bijlmer's peripheral position relative to the city centre, it was decided a metro line was to be built towards the Bijlmer. The Oostlijn (east line, actually two lines later numbered 53 and 54) links the Bijlmer to the Central Station of Amsterdam, while the Ringlijn links it with the port area at Sloterdijk.