Road users play an important role in studying traffic engineering. They take up various roles like drivers, pedestrians, cycles etc and assess the conditions in their own unique way. The physical, mental and psychological factors are the main road user ...
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Concrete Pavements for Car Parking – Features and Construction
Concrete pavements for car parking are constructed as slab-on-grade structures which are not subjected to heavy traffic and movement as compared to highway concrete pavements. They provide access to both heavy and light delivery vehicles. Concrete pavements as car parking ...
Ballast – Functions and Types
Ballast is a granular material which is placed and packed below and around the railway sleepers. Different types of ballast materials used are broken stone, sand, gravel, moorum, brickbats etc. The main purpose of ballast is to transmit the load ...
Corrugation and Shoving in Flexible Pavements – Causes and Remedies
Corrugation and shoving are two defects that usually occur in flexible pavements. Weak sub-grade conditions, improper rolling, poor mixing, temperature effect of bitumen, and weak bottom layers are different causes of corrugation and shoving in flexible pavements. What is Corrugation? ...
Difficulties in Soil Stabilization for Road Construction
Soil stabilization is the method of improving soil properties by adding suitable stabilizers to it. It is very important to achieve the required strength for the soil, especially in road construction projects where an unstable base can lead to the ...
Grade Separation and Interchanges
Grade separation is a method developed to avoid the disruption of traffic flow at intersections. Grade separation is adopted at junctions where two or more surface transport axes cross with each other. Different types of grade separation structures, advantages and ...
Lime Soil Stabilization Method and Factors Affecting it
Lime-Soil stabilization is the process of adding lime to the soil to improve its properties like density, bearing capacity etc. Various factors affecting lime-soil stabilization are soil type, lime type, lime content used, compaction, curing period and additives which are ...
Flexible Pavement Composition and Structure
The composition and structure of flexible pavement consists of surface course, binder course, base course, subbase course, frost protection course, subgrade. Flexible pavements contain bitumen or asphalt layer as wearing course and supports loads through bearing. They have low flexural strength. ...