Articulated car

Because of the difficulty and cost of separating each car from the next, they are operated as a single unit, often called a trainset.

There is a safety benefit claimed that if the train derails, it is less likely to jackknife and modern construction techniques prevent telescoping.

In the 1930s, a number of streamlined trains built for the London and North Eastern Railway also made use of articulated technology.

They save on the total number of wheels and bogies, reducing initial cost, weight, noise, vibration and maintenance expenses.

Furthermore, the axle load is higher compared to conventional train sets due to the reduced number of wheels and bogies.