Along a lot of the motorways and roads there are very large square things on wheels that are padlocked to the ground. They have a yellow surround. Are they speed checks or do they just tell us about 'what problems are ahead of us'.
2007-09-27 06:12:11 · 9 answers · asked by sue l 2 in Cars & Transportation ➔ Other - Cars & Transportation
They are portable road 'matrix' signs with self contained power packs - usually solar panels & battery -or for more long term use , a diesel generator. They have a radio link to the area police traffic office so they can be updated as necessary to inform of delays or diversions ahead
2007-09-27 06:25:49 · answer #1 · answered by george d 6 · 1⤊ 0⤋
Massive solar systems ? As opposed to tiny ones ? And why plural ? there's only one star called Sol, so surely only one solar system ?
I can't answer your question. I just wanted to remove all doubt, and prove once and for all that I am an ill infomed pedant.
2007-09-27 13:26:46 · answer #2 · answered by Anonymous · 1⤊ 0⤋
The solar system is approximately 12 billion miles across.
You say these signs "look like MASSIVE solar systems".
How big are they, exactly?
2007-09-28 02:51:16 · answer #3 · answered by Nightworks 7 · 0⤊ 0⤋
They are called V.M.S Trailers Visual Messaging Signs.
These can be programmed with what ever you want them to say or just use the Aspects which are preinstalled.
Spent two years working on these.
2007-09-27 15:20:11 · answer #4 · answered by Marvellouso 2 · 1⤊ 0⤋
You can't post a picture on Answers but you can post a web-site.
2007-09-27 13:18:30 · answer #5 · answered by Lab 7 · 1⤊ 0⤋
From your description they could be portable lighting trailers.
2007-09-27 13:23:24 · answer #6 · answered by Anonymous · 1⤊ 0⤋
I think they for information
2007-09-27 15:19:57 · answer #7 · answered by Anonymous · 1⤊ 0⤋
wow, can you show us what they look like?
i'd love to see 'em
Edit: which country do you live in?
2007-09-27 13:20:49 · answer #8 · answered by Icarus 6 · 1⤊ 0⤋
POST A PICTURE
2007-09-27 13:15:57 · answer #9 · answered by milehighmeltdown 1 · 0⤊ 2⤋