Transportation Decision Transportation decision consists of the following parts: 1.Selection of the mode is determined by the consideration of distance,cargo weights,linkage,timing and other requirements.Generally speaking,rail has high fixed cost and the relatively low variable cost.It can move heavy,large quantity of cargo in the long distance.But,rail is disadvantaged because of the longer transit time and less frequent service than motor. Motor carriers such as truck companies offer door-to-door service,that is,the cargo can be shipped from the shipper＇swarehouse to the consignee＇s.Trucking fixed cost is the lowest of any carrier,because the equipment is fairly cheap and the motor carriers do not have to invest in the roads on which they run their operations.However,their variable costs are very high.Its expenses include two major components:firstly,the pick-up and delivery costs;secondly,there are gas or fuel costs,labor expenses and toll roads fees to be paid to highway and
A. By railway.
B. By water.
C. By air.
D. By trucks.
| Mass transportation revised the social
and economic fabric of the American city in three fundamental ways. It
catalyzed physical expansion, it sorted out people and land uses, and it
accelerated the inherent instability of urban life. By opening vast areas of
unoccupied land for residential expansion, the omnibuses, horse railways,
commuter trains, and electric trolleys pulled settled regions outward two to
four times more distant from city centers than they were inthe premodern era.
In 1850, for example, the borders of Boston lay scarcely two miles from
the old business district. By the turn of the century the radius extended ten
miles. Now those who could afford it could live far removed from the old
city center and still commute there for work, shopping, and entertainment.
The new accessibility of land around the periphery of alm A. Types of mass transportation B. Instability of urban life C. How supply and demand determine land use D. The effects of mass transportation on urban expansion 我来回答: 提交
|
