In 1904 the opening of a standard gauge railway to Cairo placed Port Said in a position to compete with Alexandria for the external trade of Egypt generally, besides making it a tourist route to the capital from Europe.
Brunel adopted for the Great Western railway disappeared on the 20th-23rd of May 1892, when the main line from London to Penzance was converted to standard gauge throughout its length.
On the continent of Europe the standard gauge is generally adopted, though in France there are many miles of 4 ft.
Though the standard gauge is in use in Lower Egypt, the line into the Egyptian Sudan was built on a gauge of 3 ft.
And further, it is said, established what has become the standard gauge of the world, 4 ft.
The Paris line is built with the standard gauge of 4 ft 82 in., but its tunnels are designedly made of such a small crosssection that ordinary main line stock cannot pass through them.
Brunel on the Great Western railway, where, however, it was abandoned after the line was converted from broad to standard gauge in 1892.
Its width depends on the numbers of tracks and their gauge; for a double line of standard gauge it is about 25 ft., a space of 6 ft.