Sat Nav Data Point on a Park Sign – is this a trend?

Sat Nav Data on a Park Sign

I was recently on Sandbanks in Poole, Dorset. While playing with the kids at  a playground on the beach I noticed the park sign had a sat nav postcode on it:

Sat Nav: BH13 7QQ

It also had the address of the nearest A&E hospital with street address and postcode. Is this a growing trend to put Sav Nav and very precise geo data onto public signs?

I will keep my eye out for this… This seems like a no brainer to me as its very useful and makes it easier  for sat nav and mobile users. And makes it very easy to link the web to world of things or geo code photos and helps projects like Open Street Map, etc.