"According to a discussion on jaguarforum.co.uk, this stands for "Pollution Control Device".
"These are devices installed at various locations which during an incident involving environmentally hazardous liquids, will switch drainage systems off and will contain the pollution to ensure that it is completely removed." "
All along the newer dual-carriageway section of the A46, from nottingam to Newark are signs saying "PCD 30m ->"
or various distances, seemingly they are to do with water attenuation ponds, and maybe the associated lifebuoys, e.g.
But to anyone just driving along, WTF is "PCD" supposed to mean?
Seen all over the place on new-ish roads, best guess Pollution Control Drainage|dam
Avpx
Ah thanks, D=Device apparently, as per
Design manual for roads & bridges, volume4, section2, part3, chapter8
No idea. Maybe they have not bothered to tell anyone. Brian
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