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Feb 26, 2016 / Haseeb Jamal -

5 Travel Myths You Need to Stop Believing Right Now

Feb 26, 2016 / Haseeb Jamal -

Canal Comes Alive with Lighted Boat Parade.

Types of Base Course - Granular, Base, Macadam, Water Bound

A mixture of soil particles ranging in size from coarse to fine. Processing involve crushing oversized particles and screening where it is necessary to secure the desired grading. The requirements of a satisfactory soil aggregate surface are; Stability, Resistance to abrasion, Resistance to penetration of water, Capillary properties to replace moisture lost by surface evaporation

Mass Transit System - Impacts, Advantages & Disadvantages

Mass transit system refers to public shared transportation, such as trains, buses, ferries etc that can commute a larger number of passengers from origin to destination on a no-reserved basis and in lesser time. It can also be termed as Public Transport. Rapid transit is an important form of mass transit such as subways and surface light rail systems, designed for

Methods of Surface Treatment of Roads and Highways

Although the best type of surface course is pre-mix carpet for highway maintenance. The surface treatment methods are employed when: Intensity of traffic is not very high. the pro-mix mixers are not easily available due to long transportation or technical reasons. when the cost is high.

Highway Maintenance - Road Maintenance

Preserving and keeping each type of roadway, roadside, structures as nearly as possible in its original condition as constructed or as subsequently improved and the operation of highway facilities and services to provide satisfactory and safe transportation, is called maintenance of Highways. The various maintenance function includes; Surface maintenance

Importance of Drainage in Roads

An increase in moisture content causes decrease in strength or stability of soil mass, depending on type of soil and mode of stress application. Following are some of the effects of poor drainage system in Roads and Highways: Highway constructed on embankment slopes may damage due to slop failures the reason for which is excess moisture content which causes increase

Highway Maintenance and its Types

Preserving and keeping each type of roadway, roadside, structures as nearly as possible in its original condition as constructed or as subsequently improved and the operation of highway facilities and services to provide satisfactory and safe transportation, is called maintenance of Highways. Generally following factors affect the maintenance of pavements.

Types of Surface Distresses in Road Pavements

Following are the types of distresses found in roads: Longitudinal Wheel Path Cracking (LWP), Longitudinal Joint Cracking (LJC), Pavement Edge Cracking (PEC), Transverse Cracking, Meandering Longitudinal Cracking (MLC), Alligator Cracking (AC), Rutting (RUT), Shoving, Distortion, Bleeding, Raveling, Roughness, Pot Holes. LWP: Cracks which follow a course predominantly

Types of Traffic Models

Microsimulation models track individual vehicle movements on a second or sub second basis. Microsimulation relies on random numbers to generate vehicles, select routing decisions, and determine behavior. Because of this variation, it is necessary to run the model several times with different random number seeds to obtain the desired accuracy. There will be a

Flexible Pavement Definition and Explanation

Flexible pavement is composed of a bituminous material surface course and underlying base and subbase courses. The bituminous material is more often asphalt whose viscous nature allows significant plastic deformation. Most asphalt surfaces are built on a gravel base, although some 'full depth' asphalt surfaces are built directly on the subgrade. Depending on the temperature

To Perform Marshall Stability Test (ASTM D6927)

Marshal test is extensively used in routine test programs for the paving jobs. The stability of the mix is defined as a maximum load carried by a compacted specimen at a standard test temperature of 600 °C. The flow is measured as the deformation in units of 0.25 mm between no load and maximum load carried by the specimen during stability test (flow value may also be

Methods of Reducing Wear of Rails

Followings are some different techniques and methods for reducing wear of rails....Use of special alloy steel, Good maintenance of track, Reduction of expansion gap, Exchange of inner and outer rail on curve, Use of lubricating oil on the gauge face, By coning of wheel, Reduction of the number of joints, interchanging inner and outer rails, Tilting of rails,

Uses, Installation and Color for Raised Pavement Markers

Based on the simple principle of the law of reflection these simple road safety gadgets are known worldwide. The cat's eye falls in the category of raised pavement markers and is a retro reflective safety device used in road marking. It originated back in the 19th century and is used

Highway Capacity | Definition, Types & Factors

It is the ability of a road to accommodate traffic volume. It is the maximum hourly rate at which vehicles can reasonably be expected to cross a point on a roadway during a given time period under prevailing traffic roadway and control condition. For multi lane highway it is 2000pcphpl,

Definition, Advantages & Disadvantages of Freeways

A freeway or corridor is a long stretch of road connecting various large and small streets intersecting it at various spots. They provide a non stop, comfortable and an easy access to the road users without delays and with less vehicular fuel costs with the presence of grade separated junctions including flyovers and underpasses. Freeways and corridors are free of

Free Flow Speed of a Vehicle

Free-flow-speed of a vehicle is defined as: The desired speed of drivers in low volume conditions and in the absence of traffic control devices. The mean speed of passenger cars that can be maintained in low to moderate flow rates on a uniform freeway segment under prevailing roadway and traffic conditions. Factors affecting free flow speed: Width, Lateral clearance,

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