Scheduled Maintenance
Please be advised that this website will undergo scheduled maintenance on the following dates: •
Tuesday 3rd December 11:00-15:00
During these times, some services may be temporarily unavailable. We apologise for any inconvenience this may cause.
ROAD TUNNEL
A tunnel carrying a road under a river or through a hill or other obstruction.
Classifications
Related Terms
| Term | Note |
|---|---|
| AIR SHAFT | An artificial ventilation shaft. |
| ROAD | A way between different places, used by horses, travellers on foot and vehicles. |
| ROAD BRIDGE | A bridge carrying a road over land or water. |
| TUNNEL | An artificial underground channel. Use specific type where known. |
| UNDERPASS | A section of road that provides a passage beneath another road or railway. |
| VENTILATION SHAFT | A shaft designed to allow for the adequate circulation of air through an underground structure. |
