INTELLIGENT TRANSPORTATION SYSTEM
INTELLIGENT TRANSPORTATION SYSTEM Why it’s Needed? Traffic congestion-insufficient road development-growing number of vehicles. Low speed, increased accident rates, increased fuel consumption, and...
View ArticleGEOTEXTILES
Geotextile is defined as a permeable textile material used in contact with soil, rock, earth etc as an integral part of civil engineering project, structure or system It may be of natural materials...
View ArticleRUBBER TYRED METRO
A Rubber-tyred metro is a form of rapid transit system that uses a mix of road and rail technology. In this the vehicles have wheels with rubber tyres like a bus, but using a set of two parallel...
View ArticlePROCESSES IN BITUMINOUS ROAD CONSTRUCTION
Bituminous road constructions steps: 1. Preparation of the existing base course layer The existing surface is prepared by removing the pot holes or rust if any. The irregularities are filled in with...
View ArticleDISINTEGRATION OF WBM & ASPHALT ROADS
Various Cause of Disintegration of Water Bound Macadam and Surface Treated (Asphalt Roads): 1. Inadequate stability or strength 2. Loss of binding action 3. Loss of base course materials 4. Inadequate...
View ArticleLOAD-TRANSFER RESTORATION OF PAVEMENTS
New pavement joints typically exhibit good load transfer, particularly if the joints are doweled. However, repeated heavy loads can cause an elongation of the dowel sockets and result in dowel...
View ArticleCBR METHOD – I R C RECOMMENDATIONS
I R C RECOMMENDATIONS FOR THE CBR METHOD OF DESIGN Some of the important points recommended by IRC for the CBR method of design (IRC:37 – 1970) are given below: The CBR tests should be performed on...
View ArticlePARTIAL-DEPTH REPAIR OF PAVEMENTS
The purpose of partial-depth repairs is to correct localized areas of concrete pavement distress. Repair of this type restores rideability, deters further deterioration, reduces foreign object damage...
View ArticleMagLev Trains
MAGLEV, or magnetic levitation, is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using levitation from a very large number of magnets for lift and...
View ArticleMonorail Train In India
A monorail is a rail-based transportation system based on a single rail, which acts as its sole support and its guideway. The term is also used variously to describe the beam of the system, or the...
View ArticleVertical Transportation in Tall Buildings
A low rise building might be described as one where the able bodied do not need a lift to reach their floor, but if one is available they invariably use it. This would imply a building of 3-5 floors. A...
View ArticleGround Freezing – Tunneling Methods
Ground Freezing • Ground freezing is a process of making water-bearing strata temporarily impermeable and to increase their compressive and shear strength by transforming joint water into ice. •...
View ArticleRECONNAISSANCE SURVEY METHODS FOR HIGHWAY ROUTE SELECTION
Reconnaissance survey is done to examine the general character of the area for the purpose of determining the most feasible route or routes for further more detailed investigations. Data collected from...
View ArticleTYPES OF PAVEMENT – FLEXIBLE AND RIGID PAVEMENT
There are two types of pavements based on design considerations i.e. flexible pavement and rigid pavement. Difference between flexible and rigid pavements is based on the manner in which the loads are...
View ArticleSIGHT DISTANCE CONSIDERATIONS FOR HIGHWAYS
What is Sight Distance in Highway Engineering? Sight Distance is a length of road surface which a driver can see with an acceptable level of clarity. It plays an important role in geometric highway...
View ArticleSUPERELEVATION AND ITS DESIGN FOR HIGHWAYS
What is Superelevation in Highway Engineering? To counter-act the effect of centrifugal force and reduce the tendency of vehicle to overturn and to skid laterally outwards, pavement outer edge is...
View ArticleFLEXIBLE PAVEMENT DESIGN BY GROUP INDEX METHOD
Before Design of Flexible Pavement by Group Index Method, let us understand What is Flexible Pavement? A true flexible pavement yields “elastically” to traffic loading. It is constructed with a...
View ArticleVERTICAL ALIGNMENT OF HIGHWAYS
What is vertical alignment of highways? The vertical alignment of highway generally defined as the presence of heights and depths in vertical axis with respect to horizontal axis of alignment. These...
View ArticleHORIZONTAL TRANSITION CURVES FOR HIGHWAYS
What is transition curve and when it is needed? Transition curve is a curve in plan which is provided to change the horizontal alignment from straight to circular curve gradually means the radius of...
View ArticleFLEXIBLE PAVEMENT DESIGN BY CBR METHOD
Flexible pavement design by CBR method is used to determine the total thickness of pavement. Pavement design by CBR method recommended by California State of Highways and IRC are explained. Read More...
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