View from my car on the southbound M5 motorway approaching the Gordano Services, just south of the Avonmouth Bridge, Bristol, England. THE SLIP LANE on the left serves the Gordano Services and the A369 road, marked by the closely-dashed white dashes (with the dark car and white van on it) . The single diagonal line on a blue background indicates 100 metres to go before the exit (useful in fog or rain). (The carriageway markings are the well-spaced-out white dashes). THE OVERHEAD GANTRY says “The SOUTH WEST” meaning the south west of England. The junction number is shown as 19 (the next exit would be 20 for Clevedon). Below the blue down-pointing arrows on the gantry crosses can be lit up to bar a carriageway. THE BLUE NOTICE on the far left is not for the motorist, it helps maintenance, police, planners etc locate a point on the motorway. “A” means the southbound carriageway and “144.4” is a distance from a reference point.