Driving

These are concrete or stone devices with open, absorptive rooms in between them. Setts are rectangular rocks, generally constructed from granite, usually utilized in landscape architecture as they can be arranged in various decorative methods with various patterns and colours. These mainly linked armed forces camps that were around 30km apart-- regarding a day's march. They developed around 87,000 kilometres of road across their empire-- that's about the length of the modern-day United States interstate system. The resulting product is called bituminous macadam-- named for the road engineer John Loudon McAdam.