In this way, the population of destitute sub regions would become susceptible to physical and socioeconomic
evils and wedged into a vicious deprivation circle. Because of these problems, the rural sub regions would be
transformed into depressed sub regions. The depressed sub regions have many negative characteristics (e.g. an
outgoing population, declining resources, dormant economic features and a shabby physical infrastructure).
In Pakistan, about two-third of the total population lives in rural areas and the rest remains in urban settlements,
having the population in millions. Most of the urban centers have congested because of urbanization and have lost
their planned structure [19], such as a metropolitan city of Karachi [20]. The decayed transport infrastructure in
general and the backlog of services in particular could be the main reasons of congestion in cities that are the
subsequent of urbanization. Pakistan’s transport sector condition is still vague because of the absence of suitable
literature. Some studies are important as these provide some credulous information about the hidden secrets of
Pakistan’s transport sector (e.g. according to the study conducted by the National Transport Research Center
(NTRC) [21], the total length of the roads in a country is about 252,000 kms