By Connor Vettas-Young
What is railway engineering
the history of railway engineering
The channel tunnel
The Channel Tunnel is the longest undersea tunnel in the world. The section under the sea is 38km long. The three tunnels, each 50km long, were bored at an average 40m below the sea bed, and link Folkestone in Kent to Coquelles in Pas-de-Calais.
Eurotunnel shuttles, Eurostar and national freight trains run in the two single track and single direction tunnels. These are connected to a central service tunnel by cross-passages situated every 375m. The service tunnel allows access to maintenance and emergency rescue teams and serves as a safe haven if passengers need to be evacuated in an incident. The service tunnel is a road tunnel used by electric and diesel-powered vehicles. Air pressure is higher in the service tunnel to prevent the ingress of smoke in case of a fire in one of the rail tunnels.
The two rail tunnels are 7.6m in diameter and 30m apart. Each rail tunnel has a single track, overhead line equipment (catenary) and two walkways (one for maintenance purposes and the other for use in the event of an emergency evacuation and on the side nearest the service tunnel). The walkways are also designed to maintain a shuttle upright and in a straight line of travel in the unlikely event of a derailment.
Maglev (derived from magnetic levitation) is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. High-speed maglev trains promise dramatic improvements for human travel if widespread adoption occurs.
Maglev trains move more smoothly and somewhat more quietly than wheeled mass transit systems. Their non-reliance on traction and friction means that acceleration and deceleration can surpass that of wheeled transports, and they are unaffected by weather. The power needed for levitation is typically not a large percentage of the overall energy consumption
Worlds Fastest Train
AGV Italo is the first train in the AGV Series which entered into service in April 2012. It has a maximum operational speed of 360kmph.
The train broke a record speed of 574.8kmph in April 2007.
Considered to be the most modern train in Europe, AGV Italo was built by Alstom. The train currently runs on the Napoli - Roma - Firenze - Bologna - Milano corridor.
The train complies with the European TSI interoperability standard, which includes safety, reliability and availability, health, environmental protection and technical compatibility.
Future of UK rail
the old east coast mainline train running from edingbrugh to london
the current east coast mainline train running from edingbrugh to london
the future east coast mainline train running from edingbrugh to london, running on the HS2 line