Which is longest road or highway or motorway in the world
This article lists the world's longest road routes that are either officially numbered or otherwise known under a single name. Some of the roads may still be partially planned or under construction.
 
 Pan-American Highway 30,000 km (19,000 mi) Americas Prudhoe Bay, Alaska, United States United States Puerto Montt or Quell��n, Chile Chile or Ushuaia, Argentina Argentina Longest road according to the Guinness Book of Records.
 Incomplete at the Dari��n Gap, causing the northern and southern segments to be actually long about 11,500 and 9,600 km.
the longest road in the world is in Americas. The longest road is a highway called Pan American highway. It spans 30000 Kilometers or 19000 miles. It starts from Prudhoe Bay, Alaska in United states and ends at Puerto Montt or Quell��n, Chile Chile or Ushuaia, Argentina Argentina
 
 The pan american highway is registered as longest road in the world in guiness book of world records 
 
 There are also other categories of longest road in the worlds like Asian highway which starts in Kap��kule, Turkey and ends in Tokyo, Japan. Asian highway is longest uninterrupted highway in the world. Length of the asian highway is 20557 Kilometers or 12774 miles
 
 Longest road within the single country is in Australia. The name of the road is Highway 1. This is loop road and legnth of the highway is 14500 Kilometers or 9000 miles