9Position tolerances#
9.1 Longitudinal Pavement Markings, when not applied over an existing line, must be applied within the tolerances specified in Table 9.1.
Table 9.1 – Tolerance for installation of longitudinal pavement markings
| Application | Tolerance |
|---|---|
| Maximum deviation from straightness | 5 mm in 2000 mm |
| Maximum deviation from correct alignment or position | ± 15 mm |
| Width of road marking | - 0 mm + 10 mm |
| Longitudinal start painting position | ± 100 mm |
| Length of marking segment | ± 100 mm |
| Spacing between marking segments | ± 100 mm |
| Double one-way and double two-way line gap | 0 mm + 10 mm |
9.2 ATLM must be applied within the tolerances specified in Table 9.2 where not otherwise specified in the Contract or design drawings.
Table 9.2 – Location and pattern tolerances for audio-tactile line marking
| Application | Tolerance |
|---|---|
| Height of raised ribs, proud of pavement surface (with surface applied beads) | ± 2 mm |
| Thickness of strip in between raised rib sections (if applied) | T ≤ 2 mm |
| Spacing of raised ribs (in longitudinal direction) | ± 50 mm |
| Width of the raised rib | ± 10 mm |
| Length of raised ribs (in longitudinal direction) | ± 10 mm |
| Slope angle of raised rib lead and trail faces | 45° (approx.) |
9.3 Transverse Pavement Markings must be applied within the tolerances specified in Table 9.3.
Table 9.3 – Tolerance of installation of transverse pavement markings
| Application | Tolerance |
|---|---|
| Dimension of transverse markings and shapes | ± 20 mm |
| Placement from spotting | ± 10 mm |
| Placement from existing markings | ± 10 mm |
9.4 Geometric tolerances must be checked at intervals specified in Annexure MRTS45.1, if stated.