3307 x 3307 px | 28 x 28 cm | 11 x 11 inches | 300dpi
Data acquisizione:
8 novembre 1999
Ubicazione:
London, UK.
Altre informazioni:
Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.
An escalator is a mass transportation device that moves passengers quickly and efficiently up or down between the floors of a structure. In reality, it is a simple moving conveyor but, instead of a belt, it has a series of ingenious steps that are self-levelling, driven by a powerful electric motor and chain system. This is combined with a moving handrail that moves at the same speed as the steps to provide passengers with stability. The really clever thing is that an escalator can never break down, it can only become stairs. The Jubilee Line covers 36.2km (22.5 miles) and serves 27 stations between Stanmore and Stratford. The equivalent statistic for the new extended section is 16km (10 miles) of which 12.4 km (7.7 miles) is in tunnel and 3.5 km (2.3 miles) on the surface. Work started on the £3.5 billion project to extend the Jubilee line in December 1993. The extension runs from Green Park to Stratford and was opened in three phases during 1999.
