I can’t drive 55… much less 50.
Harry Eyres writes in the Financial Times:
Why not, for a start, introduce a speed limit of 50 miles (80km) per hour on all major roads and 20mph in towns? Fuel consumption and therefore carbon emissions would be reduced significantly, as would road accidents and fatalities. Sure, some journey times might be slightly longer (though slower, steadier traffic would avoid some jams), but my admittedly anecdotal experience limiting my speed on journeys to and from the family home in the Chilterns suggests the effect is quite negligible, and in any case a very small price to pay for the benefits.