1. New container ships were built to transport goods around the world in greater quantities
2. These new ships were too wide to fit into London's Docklands
3. The River Thames was too shallow for container ships
4. The docks lacked the modern crane systems for loading and unloading containers
5. This meant that in only 10 years from 1970 to 1980 London docklands, including West India docks, become redundant and closed