In the construction of bridges for railroad purposes, two prominent difficulties have long been discovered, viz ., a lack of sustaining principle towards the ends of the trusses and near the abutments, and an entire absence in many cases of a proper counteracting principle to prevent vertical vibration by a moving load.
32.
In industry the most common attachment for a tele-handler is pallet forks and the most common application is to move loads to and from places unreachable for a conventional forklift . For example, telehandlers have the ability to remove palletised cargo from within a trailer and to place loads on rooftops and other high places.
33.
Officially, the Road Test was " . . . to study the performance of pavement structures of known thickness under moving loads of known magnitude and frequency . " This study, carried out in the late 1950s in Ottawa, Illinois, is frequently quoted as a primary source of experimental data when vehicle wear to highways is considered, for the purposes of road design, vehicle taxation and costing.
