This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:
{{Rail infrastructure projects in the United Kingdom|state=collapsed}}will show the template collapsed, i.e. hidden apart from its title bar.{{Rail infrastructure projects in the United Kingdom|state=expanded}}will show the template expanded, i.e. fully visible.
- Set the
|selected =option to current, defunct or future as appropriate to expand the section relevant to the article, e.g. {{Rail infrastructure projects in the United Kingdom|state=collapsed|selected=proposed}} (navbar collapsed, but reveals with the Defunct panel already expanded). The default is current.
Navbox that collates future railway projects in the UK, including proposed projects
| Parameter | Description | Type | Status | |
|---|---|---|---|---|
| 1 | 1 | no description | Unknown | optional |
| state | state | no description | Unknown | optional |
| selected | selected | no description | Unknown | optional |