Rhaetian Railway (RhB) breaks Guiness World Record for world's longest train

The world record for the longest passenger train has just been broken in Switzerland.

Rhaetian Railway (RhB) claimed the record after the 1906-metre-long narrow gauge train passed through the Unesco World Heritage route from the Albula Tunnel in Preda to the Landwasser Viaduct just outside Filisur.

Thousands watched along the route as the 25 four-part electric Capricorn railcars made their way slowly through the stunning Swiss landscape. The record attempt using 100 cars was to celebrate the 175th anniversary of Switzerland's first railway.

Renato Fasciati, Director of RhB, said it was a huge achievement.

"After intensive preparation, we are overjoyed to have achieved this world record. Not only did we have a wonderful railway festival here in Bergün, but we were able to present ourselves around the world as a fascinating and innovative mountain railway thanks to our dedicated partners, sponsors and an incredibly dedicated team," said Fasciati.

Guinness World Records confirmed the world-beating record attempt; the previous best was 1732.9m from 1991.

Ahead of the record attempt, a test run was over before it started when the emergency brake system could not be activated and the seven drivers could not communicate with each other via radio or cellphone in the many tunnels, reports CNN. However, a temporary field telephone system was set up and specially modified software allowed the drivers to control the train.

By the numbers: The Swiss record attempt