ش | ی | د | س | چ | پ | ج |
1 | 2 | 3 | 4 | 5 | ||
6 | 7 | 8 | 9 | 10 | 11 | 12 |
13 | 14 | 15 | 16 | 17 | 18 | 19 |
20 | 21 | 22 | 23 | 24 | 25 | 26 |
27 | 28 | 29 | 30 |
A road is an identifiable route, way or path between places. Roads are typically
smoothed, paved, or otherwise prepared to allow easy travel though they need not
be, and historically many roads were simply recognizable routes without any
formal construction or maintenance.
The term was also commonly used to
refer to roadsteads, waterways that lent themselves to use by shipping.
Notable examples being Hampton Roads, in Virginia, and Castle Roads, in
Bermuda (also formerly in Virginia).
In urban areas roads may diverge
through a city or village and be named as streets, serving a dual function
as urban space easement and route. Economics and society depend heavily on
efficient roads. In the European Union (EU) 44% of all goods are moved by
trucks over roads and 85% of all persons are transported by cars, buses or
coaches on roads.
The United States has the largest network of roadways of any country with
6,430,366 km (2005). India has the second largest road system in the world
with 3,383,344 km (2002). People's Republic of China is third with 1,870,661
km of roadway (2004). When looking only at expressways the National Trunk
Highway System (NTHS) in People's Republic of China has a total length of
45,000 km at the end of 2006, second only to the United States with 90,000
km in 2005.
منبع :ایران - ایران