| | Trunk road - Wikipedia, the free encyclopedia |
 | | Most interurban trunk roads are "primary routes", the category of recommended roads for long distance and freight transport, but not all primary routes are trunk roads, the difference being that trunk roads are maintained by central government rather than the local councils. |
 | | Trunk roads are often listed on maps with a "T" in brackets after their normal numbers so as to distinguish them from non-trunk parts of the same road. |
 | | Although a number of old road signs using these designations may still be encountered, Ireland has long since adopted a newer classification scheme of National Primary and Secondary Routes ("N" roads), Regional roads ("R" roads), and local roads (administratively referred to by "L"-prefixed numbers, though these numbers are not shown on signs). |
| en.wikipedia.org /wiki/Trunk_road (731 words) |