Development in Transportation

Highway engineering, Mode of transport, Asphalt concrete

Transport is an important part of the nation's economy.It has progressed at a rapid pace, and today there is a wide variety of modes of transport by land, water and air. Public transport still remains the primary mode of transport for most of the population. Despite improvements, several aspects of transport are still riddled with problems due to outdated infrastructure and a burgeoning population, and demand for transport infrastructure and services has been rising by around 10% a year.Its quite often to think that how rapidly we had advanced from slow bullock carts to high speed Bullet trains. The different types of transport modes are:     Road transport Air transport Water transport Rail Transport

Road Transport:
Road transport or road transportation is transport on roads of passengers or goods. The Makran Coastal Highway was an ancient road within Pakistan. Now it's a major road leading to the city of Gwadar.The first methods of road transport were horses, oxen or even humans carrying goods over dirt tracks that often followed game trails. As commerce increased, the tracks were often flattened or widened to accommodate the activities. Later, the travois, a frame used to drag loads, was developed. The wheel came still later, probably preceded by the use of logs as rollers. With the advent of the Roman Empire, there was a need for armies to be able to travel quickly from one area to another, and the roads that existed were often muddy, which greatly delayed the movement of large masses of troops. To resolve this issue, the Romans built great roads. The Roman roads used deep roadbeds of crushed stone as an underlying layer to ensure that they kept dry, as the water would flow out from the crushed stone, instead of becoming mud in clay soils.

During the Industrial Revolution, and because of the increased commerce that came with it, improved roadways became imperative. The problem was rain combined with dirt roads...
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