In this article we will discuss about:- 1. Introduction to Tamil Nadu State Transport Corporation 2. History of Tamil Nadu State Transport Corporation 3. Overview 4. Origin 5. Services Available to the Public 6. Institutes of Road Transport 7. Awards 8. Other Related Information. Contents: Introduction to Tamil Nadu State Transport Corporation Overview of the Tamil Nadu State Transport Corporation [...]
Read this article to learn about: 1. Objectives of highway planning 2. Necessity of highway planning in India 3. Principle of Highway Planning 4. Highway Planning Process 5. Importance of Highway Planning. Introduction to Highway Planning: Planning is a prerequisite for any engineering activity or project; this is particularly true for the development of a highway network or system in [...]
Traffic Engineering: Probability, Sampling, Normal Distribution and allied Notes! Traffic engineering deals extensively with data obtained from surveys and studies related to traffic, which are useful in the design and operation of highways. Statistical methods have proved to be a powerful tool in the analysis and interpretation of these data. Elementary concepts of statistics are considered here, with particular reference [...]
Spot Speed Studies in Traffic Engineering: Endoscope, Measurement and Methods of Measuring Spot Speeds! Speed Studies: Traffic flow is influenced by the speed of the traffic on existing roads. Speed is a function of several factors such as the geometric design features, traffic conditions like the presence of other vehicles, time and place, the environment, and the driver, and the [...]
Transportation planning is a complex problem. Increased facilities will change the environment and land use patterns and result in increased trips invalidating the original criteria and projections used. Increased use of operations research and systems approach to transportation planning in recent times seeks to optimise the system performance for deriving maximum benefit from the facilities. The use of mathematical models [...]
In this article we will discuss about:- 1. Definition of Highway Capacity 2. Importance of the Concept of Highway Capacity 3. Factors Affecting Capacity and Level of Service 4. Traffic Capacity Formula. Definition of Highway Capacity: Highway capacity is associated with traffic volume and traffic density. Traffic volume is the number of vehicles passing a given point on a roadway [...]
Traffic Signals: Notes, Importance and Methods Used for the design of traffic signals. The following definitions, concepts and explanations are useful or important in and relevant to the design of traffic signals. (i) Time Cycle: The period of time required for the complete sequence of signal aspect at any one arm of an intersection from red to the onset of [...]
A rotary intersection is a specialised form of intersection-at-grade in which the traffic movies in one direction round a central island. For 'keep-to-the-left' rule, vehicles approaching the intersection are forced to move around the central island in an orderly manner and weave out of the rotary into their respective desired directions. Design Elements of a Rotary: A number of elements [...]
When two or more roads intersect or cross, the users of these roads have to necessarily adjust their movement in order to avoid 'collision'; this adjustment could be by way of reduction in speed and/or change in the path of their motion. An intersection is defined as "the general area where two or more highways join or cross, within which [...]
Materials Used for the Construction of Roads: Methods, Process, Layers and Road Pavement! A wide variety of materials are used in the construction of roads these are soils (naturally occurring or processed), aggregates (fine aggregates or coarse aggregates obtained from rocks), binders like lime, bituminous materials, and cement, and miscellaneous materials used as admixtures for improved performance of roads under [...]