Question

how is road transportation is better than railway
plz hel

Answer 1

Road transport is more important than railway transport in many ways. 
Road transport delivers people and goods at door. 
Road transport generates more employment than railway transport.
It is easy to have access over hilly areas whereas it is not possible with railway transport. 
For laying of roads it costs less and consumes less time but to lay tracks for railway transport it is opposite. 
During emergency(war, accident etc) Road transport is widely useful/used. 
When an accident takes place the chances of casualties are more in railway transport when comparing with Road transport.

Answer 2

India has one of the largest road networks in the world, aggregating to about 2.3 million km

at present. In India, roadways have preceded railways. They still have an edge over railways

in view of the ease with which they can be built and maintained. The growing importance of

road transport vis-à-vis rail transport is rooted in the following reasons; (a) construction cost of

roads is much lower than that of railway lines, (b) roads can traverse comparatively more

dissected and undulating topography, (c) roads can negotiate higher gradients of slopes and as

such can traverse mountains such as the Himalayas, (d) road transport is economical in

transportation of few persons and relatively smaller amount of goods over short distances, (e) it also provides door-to-door service, thus the cost of loading and unloading is much lower,

(f) road transport is also used as a feeder to other modes of transport such as they provide a link

between railway stations, air and sea ports.