Twirly Box on M2 Highway

[SlimmJimm]

Anyone seen that bright red and yellow (i think) coloured twirly thing in the middle of the M2 highways??? Inbetween the two barriers and know what it is?

 

[phiber]

Saw this too and was wondering what it was... spins really quickly, might be generating wind energy?

 

[123Eish]

I was wondering as well, the first day I saw it I slammed in my brakes. Thought it was a camara!

 

[WaxLyrical]

Pics.
Could be a giant Alien vibrator.

 

[FiestaST]

M2