← Lessons 27-Permits and Methods of Operating

4. CONTAINER TRAFFIC

  • Containerisation using ISO dimensions developed rapidly from the 1960s.
  • Standard ISO containers are based on 8 ft width and 8 ft height, with common lengths of 20, 30 or 40 ft.
  • Hi-cube containers have become more common and are 9 ft 6 in high.
  • Capacity is commonly expressed in TEUs – Twenty Foot Equivalent Units.
  • Container types include general purpose, insulated, refrigerated, half-height, tank and bulk powder containers.
  • Advantages:
  • Less packaging required.
  • Reduced pilferage.
  • Goods can be cleared at customers' premises.
  • Permits should not normally be required.
  • Potential disadvantages:
  • Limited flexibility for awkward-sized or awkward-shaped consignments.
  • The container is outside the sender's direct control.
  • Road trailers need suitable twistlocks and other equipment for safe container transport.
  • Imported containers may be overloaded for carriage by road in the UK.