 It is likely that several of Worthing's roads were laid out during this period in a grid form marking out a field system known as 'centuriation'.Worthing's High Street lies at the south of a long straight trackway that stretches from high on the South Downs to the sea and northwards into the Weald.The track would have been used as a droveway (for transhumance) and can still be walked today along much of its length.