The London Bridge Tower, also known as the Shard, is a 72-storey, mixed-use tower located beside London Bridge Station on the south bank of the river Thames. This project was a response to the urban vision of London Mayor Ken Livingstone and to his policy of encouraging high-density development at key transport nodes in London. This sort of sustainable urban extension relies on the proximity of public transportation, discourages car use and helps to reduce traffic congestion in the city