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Traffic Highway and Transportation Engineering

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Road classification is the orderly grouping of roads into systems according to the type and degree of service they provide to the public.

A road network is composed of various types of roads, each of which performs a particular service in facilitating vehicular travel between points of trip origin and destination, and in providing access to... read more [Read More]

The aim of location survey is to select a route with the following points kept in mind... read more [Read More]

  1. With reasonable economy it should meet the minimum requirement regarding curvature and grades.
  2. To produce free flowing traffic artery that has a high capacity and meets all safety standards.
  3. The location survey should recognize and evaluate the routes impact on already existing industries, business, & residential values & on future development.

In general, the sequence of highway location in the urban areas is the same as in rural area i.e. reconnaissance, preliminary location and final location. The location is chiefly dictated by the desired and points of travel, topography, geology and environmental impact...

read more [Read More]

To understand the considerations and quantifiable aspects of geometric design consider... read more [Read More]

  1. Locational Design
  2. Current land use
  3. Geology
  4. Future land use
  5. Existing infrastructure

The typical cross section provided by AASHTO for a two lane highway is given below.

See fig: Cross Section of a Highway

Flexible Pavements

Rigid Pavement

Comparison of Flexible & Rigid

Advantages

Culverts

It is a transverse and totally enclosed drain under a road or railway.

Common Culvert types

Arch | Bridge | Single Pipe | Box | Pipe Arch

Flexible Pavements

Rigid Pavement

Comparison of Flexible & Rigid

Advantages

 

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