"Dave Plowman (News)" wrote in message
...
In article ,
raden wrote:
It's that shape to make it easier for real cars to drive over it when it
breaks down - thus reducing congestion

Could be a nice little earner for you doing re-con control boards for it.
Although with the few hundred bought in the UK, you might have to go into
the export market.

Such an entrepreneur. Duh!