Because it would reduce congestion, reduce accidents and reduce cardon emissions and finally, reduce haulage costs.
Repeal the law which limits large goods vehicles to 40 MPH on A Roads.
This law is very impractical, causes congestion, is actually dangerous as other road users become frustrated following a truck doing 40MPH.
Technoglogy has improved road safety massively over the last number of years and this law is now out dated. In most circumstances, 50MPH is a perfectly suitable speed for an LGV and as drivers have to pass stringent tests to drive an LGV, they are well able to judge this for themselves.
If necessary, ban truck overtaking on two lane dual carriageways as well.