The original French scheme was that every sous-prefecture should be rail connected.
The port is directly rail connected to the East Coast Main Line and the Durham Coast Line, and close to the A66 trans-pennine route, and other major trunk roads.
The rails on a moving bridge and the adjoining rails connected to land must be able to separate when the bridge opens, and then fit snugly back together when the bridge closes.
It remains rail connected.
All the sites have been rail connected.
Some interurban services may be operated as high specification luxury services, using coaches, in order to compete with railways, or link areas not rail connected.
In the 1970s part of the site became the Stratford London International Freight Terminal with a number of large warehouses some of which were rail connected.
It should be noted that many large rail connected industrial sites also had engine sheds primarily using shunting locomotives.
The A1 works are not rail connected.
A third extension DIRFTIII, also rail connected, is at a planning and consultation stage as of 2011.