Broad gauge is usually used where the track needs to have heavy things moving on it.

With a home on wheels it was easy to move to wherever the track needed repair.

There have been fatal accidents, and tracks need major repairs.

A new track may need to be laid to avoid many curves which slow down the trains.

The report suggested that the track needed major refurbishment at an estimated cost of $2.4 million.

At the beginning of the 1940s, the track needed more improvement.

By 1895 the tramway was in poor condition and the track needed relaying.

Following a total lack of investment for decades, by the early 1980s the track and signalling needed to be replaced.

However railway technology had moved on and the track needed to be relaid.

The two tracks need not necessarily be of the same gauge.