A1 APPENDIX – TABLES
TSRGD diagram no. |
Type | Single carriageway road (permanent speed limit of 30mph or less) |
Single carriageway road (permanent speed limit of 40mph) |
Single carriageway road (permanent speed limit of 50mph or more) |
Dual carriageway road (permanent speed limit of 40mph or less) |
Dual carriageway road (permanent speed limit of 50 mph or 60 mph) |
Dual carriageway road (national speed limit) |
---|---|---|---|---|---|---|---|
504.1 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
506.1 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
511 | x-height | 2.5 | 75 | 100 | 75 | 125/150* | 200 |
516 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
517 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
518 | x-height | 62.5 | 75 | 100 | 75 | 125/150* | N/A |
521 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
522 | Triangle | 600 | 750 | 900 | 750 | 1200 | N/A |
530 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
543 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
543.1 | x-height | 62.5 | 75 | 100 | 75 | 125 | 150 |
554 | Triangle | 600 | 750 | 900 | 750 | 1200 | N/A |
554.1 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
556 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
557 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
560 | Circle | 75-150 | 75-150 | 75-150 | 75-150 | 75-150 | 75-150 |
561 | Rectangle 240 max | ||||||
562 | Triangle | 600 | 750 | 900 | 750 | 1200 | 1500 |
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