Dangerous Roads Around The World

• Green lane - (UK) Unsurfaced road, may be so infrequently used that vegetation colonises freely, hence 'green'. Many green lanes are ancient routes that have existed for millennium, similar to a Byway
• Guard rail - Prevents vehicles from veering off the road into oncoming traffic, crashing against solid objects or falling from a road
• Gutter - UK a drainage channel between the main carriageway and the edge of the road.
• Interstate Highway System - United States System of Interstate and Defense Highways