Freight between Road and Air Transp

Freight between Road and Air Transportation
When the service with rapid response to most consumers, remain you about speed of each transportations.
1.The speed of road transportation vary according to the nature of the vehicles, is more slowly than.
2.The speed of air transportation is fastest.
Another major difference between two transportations is price.
1.Freight rate of road transportation is usually low and certain price.
2.The freight of air transportation is very high price because it involves very large investment more than.
There are different useful between two transportations. When the distance is a port of the freight.
1.Because road transportation carried on over short distance, so it is useful for internal trade.
2.Air transportation is useful for both internal and external trade because it is carried on any distance.