or along a median. Interstate Highway System (United States) System of Interstate and Defense Highways Lane One of the longitudinal strips into which a carriageway is divisible, whether or not defined by longitudinal road markings, which is wide enough for one moving line of motor vehicles other than motorcycles. Layby (Pullout, pull-off) A paved area beside a main road where cars can stop temporarily to let another car pass. Loose chippings The hazard of stone chippings that have come loose Median On dual carriageway roads, including controlled-access highways, divided highways and many limited-access roads, the central reservation (British English), median (North American English), median strip (North American English and Australian English), neutral ground [Louisiana English] or central nature strip (Australian English): Area that separates opposing lanes of traffic Motorway (Europe) (Freeways in the US, Special road in the UK) Road, specially designed and built for motor traffic, which does not serve properties bordering on it, with separate carriageways for traffic in two directions, with no crossings at the same level (road, railway, tramway track, or footpath) and sign-posted as a motorway and is reserved for specific categories of road motor vehicles. Mountain pass A relatively low-level route through a range of mountains Milestone One of a series of numbered markers placed along a road, often at regular intervals, showing the distance to destinations. National Highway Road built and maintained by a national authority. Pavement The road regarded as a geoconstruction. In the UK the term is road surface and the pavement is a pedestrian walkway alongside the road. Pedestrian crossing Designated point on a road where road marking or other means helps pedestrians cross safely Pelican crossing (officially Pelicon crossing) (UK) A PEdestrian LIght CONtrolled crossing. Private highway Highway owned and operated for profit by private industry Private road Road owned and maintained by a private individual, organization, or company rather than by a government Profile The vertical alignment of a road, expressed as a series of grades, connected by parabolic curves. Protected Intersections for Bicycles A much safer design with a corner refuge island, a setback crossing of the pedestrians and cyclists, generally between 1.5–7 metres of setback, a forward stop bar, which allows cyclists to stop for a traffic light well ahead of motor traffic who must stop behind the crosswalk. Separate signal staging or at least an advance green for cyclists and pedestrians is used to give