Joints are too important for the rigid pavements because the joints are responsible for reducing stresses developed due to temperature variations. There are two type of joints-
- Longitudinal Joints
- Transverse Joints
The Transverse joints are subdivided into three categories-
- Expansion Joints
- Contraction Joints
- Construction Joints
Rigid Pavements are those which possess noteworthy flexural strength or flexural rigidity. The rigid pavements are generally made of Portland Cement Concrete (CC) and are therefore called ‘CC Pavements’. Plain cement concrete pavements slabs made of specified strength characteristics are laid, with or without steel reinforcement at the joints.
Flexible Pavements are those which on the whole have low or negligible flexural strength and are rather flexible in their structural action under the loads. Means, Flexible pavements are designed to pass the load immediately from the point where it occurs.
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The traffic surveys for collecting traffic data are also called traffic census. These Studies help in deciding the geometric design feature and traffic control for safe and efficient traffic movements.
The basic objective of traffic engineering is to achieve free & rapid flow of traffic with the least no. of accidents. For these various studies are carried out. These studies are divided into-
Roads provide access to the outside world or the store around the corner. Roads take farm produce to market and children to school. Roads are the conduit of life’s activities.
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