This last stretch of line had been built originally using the standard gauge, or 'narrow gauge' as it was known at the time.

The line is fully automated and will use standard gauge.

The line uses standard gauge and is partly underground.

Since the main line at Basingstoke used standard gauge, it was impossible for the railways to share the same station.

Since the conversion, the line uses standard gauge.

This is probably why it was permitted to use broad gauge.

The system will use Russian gauge, the same as used by Kazakhstan's existing conventional lines.

Currently, it is the only main line in China using narrow gauge.

It is narrow gauge; the rest of the Syrian network uses standard gauge.

Some countries use broad gauge, of which there are three types.