The two conurbations are close enough to be a single conurbation. Six large conurbations of England correspond to metropolitan counties. Ukraine has five major agglomerated metropolitan areas (conurbations). The Ruhr itself lies within the larger Rhine-Ruhr Metropolitan Region, one of Europe's largest conurbations. The metropolitan areas of Guntur, Vijayawada and Tenali are the major conurbations of Amaravati. Vertical malls are common in densely populated conurbations such as Hong Kong, Jakarta, and Bangkok. They live throughout Britain, many outside large towns or conurbations. They have grown to be the densely populated urban conurbations they are known for today. Germany has three conurbations along the River Rhine, namely Rhine-Main, Rhine-Neckar and Rhine-Ruhr. This list includes conurbations and cities with over 150,000 inhabitants. The main conurbations are the Rotterdam and The Hague areas. Hilversum is part of the Randstad, one of the largest conurbations in Europe. The built-up areas of conurbations tend to cross historic county boundaries freely. Purmerend is part of the Randstad, one of the largest conurbations in Europe. Bus transport in some large conurbations is regulated by Passenger Transport Executives.