The network is undergoing expansion and rolling stock renewal.

The three major networks have recently undergone drastic changes, but the downshift at CBS is perhaps the most striking.

In the 21st century the network has undergone extensive modernisations, and newer rolling stock (such as the Class 680 "pendolino") have been introduced.

From 1973 to 1985, Jordan TeleCom's network underwent significant expansion as part of a government investment program.

When the network underwent some turmoil, it cancelled production of all of its original programming including Faith Under Fire.

In 2007 the network underwent a significant upgrade and incorporated features such as blogs, wikis, forums, and other web 2.0 functionality.

Upon attempting to sign in via the PlayStation 3, users received a message indicating that the network was "undergoing maintenance".

Due to the rising number of vehicles on its roadways, this network is undergoing constant improvement and expansion.

The network underwent rapid expansion prior to the 2011 Summer Universiade, opening 110 km (68.35 miles) of tracks in June 2011.

In 2005, the network underwent its first internal structural reform.