Motoring: Snow patrol

The American poet Robert Frost wrote memorably of pausing on his pony in the snow and looking longingly into woods that were ‘lovely, dark, and deep’, regretting that he had promises to keep and ‘miles to go before I sleep/And miles to go before I sleep’. In another poem he described a woodland path as the road not taken; instead, he took ‘the one less travelled by/And that has made all the difference’.