Geograph - photograph every grid square

Passing Location Reference Indicator W115, a second blue sign gives advance notice of a layby 2km ahead. Unlike in the UK, some Irish motorways (including the M7) have laybys.

Location Reference Indicators (LRIs) are deployed along the Irish National (including motorway) dual-carriageway road network and are very similar, both in design and purpose, to the Driver Location Signs (DLS) used in the UK (eg SE3009 : Driver Location Sign at Bence Lane Bridge). The first line of text displayed on an LRI indicates the road being travelled on (in this example, the M9). The second row indicates the compass direction in which the driver is travelling, which can only be N(orth), S(outh), E(ast), or W(est). The third row indicates the number of kilometres from the beginning of the road. These signs are typically placed on the nearside verge and are positioned at 500m intervals.