Road testing machine. This machine was used to determine which paving techniques and materials were the most hard-wearing when exposed to heavy loads and high traffic levels. The road being analysed here is not a public road but a purpose-made testing track,so that the different paving methods can all be surveyed within the same research arena. Photographed at the National Physical Laboratory,Teddington,UK,in 1911 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NATIONAL PHYSICAL LABORATORY (c) CROWN COPYRIGHT |
Bildgröße: | 4961 px × 3829 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |