A summary of the signs used at passing lanes is detailed in Table 4‑1. The signs for passing lanes situated in rural and urban areas are identical except for the A42-1.1 Passing lane ‘[distance] km’ ahead sign, which is only used in rural situations.
All signs should be located where approaching drivers have an uninterrupted view of them over a distance of at least 120m in rural areas or at least 60m in urban areas.
Table 4‑1: Signs for use at passing lanes
| Sign code | Example | Description/use |
|---|---|---|
|
A42-1.1 Passing lane ‘[distance] km’ ahead |
 |
A42-1.1 sign ahead signs may also be installed in advance of passing lanes. (Rural use only) |
|
A42-1 Passing lane 400 m ahead |
 |
Where an A42-1 sign is installed, it must be installed 400m in advance of a passing lane. |
|
R7-1 Keep left unless passing |
 |
An R7-1 sign should be installed approximately 15m before the road widening for the passing lane commences. R7-1 signs may be also be installed at approximately 400m intervals along passing lanes. The last repeat sign should however be located at least 400m in advance of the W13-1.3 Road narrows – two lanes reduce to one and W13-1.2 Road narrows ahead - supplementary. |
|
W13-1.3 Road narrows – two lanes reduce to one, and W13-1.2 Road narrows ahead - supplementary |
|
A W13-1.3 and W13-1.2 sign combinations should be installed approximately 200m in advance of the merge taper. W13-1.3 and W13-1.2 signs should be installed on both sides of the road, to improve sign visibility for drivers of overtaking vehicles. |
|
W13-1.3 Road narrows – two lanes reduce to one |
 |
W13-1.3 sign should be installed at the start of the merge taper at the end of a passing lane. W13-1.3 signs should be installed on both sides of the road, to improve sign visibility for drivers of overtaking vehicles. W13-1 (L) road narrows left side signs should not be used at the end of passing lanes. |
