INDEX
| "INCIDENT USE HARD SHOULDER" sign | O7.1.6 |
| Incident Support Units (ISUs) | O7.2.5, O7.2.17, O7.2.39 |
| Information board | D4.15.1–5 |
| Information on existing signs | D4.6 |
| Information signs | D4.2.9, D4.11 |
| Inner boundary | |
| safety zone | D3.2.2, D3.10.6, D3.10.9, O3.2.9, O3.2.11, O3.2.14, O4.11.11, O4.11.14 |
| Inspection | |
| of signs | O3.6.8, A4.3.4 |
| on a motorway | D3.28.5 |
| site | O10.18.2 |
| stops | D3.31, O8.3 |
| Inspection/supervisor vehicles | O5.5.2 |
| Installation of static traffic management | O3.6 |
| Interference with pedestrian movement | O3.13.1 |
| Island sites | D6.11 |
| "JOINING TRAFFIC NOT SIGNAL CONTROLLED" sign | D5.10.12, D5.15.7, O3.21.18 |
| Junction within road works | D3.17, D4.8.6, D5.14, D6.18.3, O3.21.28–29, O3.21.31–32 |
| Junctions | D5.14, O11.18 |
| Keep left/right sign | D4.8.16 |
| Key to areas and symbols shown in plans | A1.4 |
| Lane | |
| capacity | D3.4 |
| diversion on one carriageway sign | D6.4.12 |
| restriction panels | D4.10.16–36, D4.13.8 |
| widths | D3.3 |
| Lane closed barrier | D4.8.13 |
| Lane-change zone | D6.31.1, D6.16, D6.29.2–3 |
| Lanterns, flashing amber | O10.9 |
| Lateral clearance | D3.2.1, D3.2.4, D3.2.6-11, O3.2.1-7 |
| additional | D3.2.10 |
| specified | D3.2.6-11 |
| Lead-in zone | D5.4.6, D6.14.1, D6.17, D6.29.4–6 |
| Legal | |
| requirements | D1.3.1 |
| status | D1.3, O1.3 |
| Legislation | A3.2 |
| Length of site | D3.5.1 |
| Length of works | D3.5 |
| Level crossings | D5.17, O3.25 |
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