非常大的结构是一个600英尺高的城市，重量超过300,000吨。
The Very Large Structure (VLS) is described as a 600-ft-tall "city on wheels" that would remain in almost constant motion as it rolled over the countryside. Consisting of a massive superstructure on a 1,700-ft-long platform born along by massive tank-style treads, the VLS would concentrate all of the activities and resource consumption of a city into a single mobile structure.
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该项目是由西班牙建筑师ManuelDomíguez在2012年在马德里技术大学（ETSA）高级技术学院（ETSA）设计的论文设计的，旨在突出大型城市能源消耗的问题。与传统的固定地点城市不同，VLS将能够根据资源可用性和气候变化转移到新的位置。
Domínguez estimates that the entire structure would weigh between 300,000 and 320,000 tons, including the buildings on the superstructure. His own rough calculations show a need for 1,016 MW of power to move the city, which he proposes reaching through a combination of 36 generators rated at 29MW each.
虽然VL的基本结构元素相对固定，但结构的占用空间将由框形模块化单元制成，可以根据需要重新配置并将其堆叠成差分排列。在Domínguez的愿景中，VLS将在必要时发展并重新设计，就像一个真正的城市一样。该结构将根据需要进行翻新和扩展，而不是具有固定端点，这反映在上层建筑的模块化设计中。
除了载板太阳能电池板阵列外，VLS还将有一个大量的电池组来存储附近可再生资源的电源。可以部署可伸缩的水泵来接管饮用水，并且在支撑柱周围安装的起重机将能够接收物品。还会有healipad和接入点，以供闪光所停泊。
The idea of a self-contained mobile structure offering all the advantages of a city is not a new idea. The VLS is in some ways an update of the "Walking City" proposed by architect Ron Herron in the journal Archigram in the 1960s, where six-legged behemoth cities would creep over the landscape. Both projects draw inspiration not only from science fiction but also the massive self-propelled transport platforms NASA used to move its rockets to their launch positions. The VLS also draws inspiration from the efficient management of space and weight seen on offshore oil platforms. In many ways the self-contained mobile city of the VLS is similar in organization to the "floating city" of a fully staffed aircraft carrier.
