The new system, known as Transcalm, is made from rubber and contains a fast working air valve which can deflate the hump.
Cars travelling faster than the set limit will not deflate the ramp, which will then act like a conventional speed hump.
Exhausted Fossett, who had only 15 minutes' sleep the night before, was tossed head over heels in his tiny capsule as he struggled to deflate
The SleepTec sofa sleeper mattress uses a built-in electric pump that inflates or deflates
the air mattress in less than a minute.
If the valve is set at 20mph, then a car doing that or less will find that the cushion deflates
and allows it to travel with minimum disruption.
WE all experience events which boost us - promotion, finding a partner, having a baby or passing an exam - and those which deflate
self-esteem - being burgled, losing a job, ending a relationship or being bereaved.