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Alignment of Railway Lines
Abhishek Jangir
Department of Civil Engineering
National Institute of Technology Kurukshetra
Alignment of railway line refers to the direction and
position given to the centre line of the railway track
on the ground in the horizontal and vertical planes.
Horizontal alignment means the direction of the
railway track in the plan including the straight path
and the curves it follows. Vertical alignment means
the direction it follows in a vertical plane including
the level track, gradients, and vertical curves.
Introduction
A new railway line should be aligned carefully after
proper considerations, as improper alignment may
ultimately prove to be more costly and may not be
able to fulfill the desired objectives. Railway line
constructions are capital-intensive projects, once
constructed, it is very difficult to change the
alignment of a railway line because of the costly
structures involved, difficulty in getting additional
land for the new alignment.
Importance of Good Alignment
Basic Requirements of an Ideal
Alignment
• Purpose of the New Railway Line
• Integrated Development
• Economic Considerations
• Maximum Safety and Comfort
• Aesthetic Considerations
Railway Engineering book written by SATISH
CHANDRA Professor, Department of Civil Engineering,
Indian Institute of Technology Roorkee
Reference

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Alignment of railway lines

  • 1. Alignment of Railway Lines Abhishek Jangir Department of Civil Engineering National Institute of Technology Kurukshetra
  • 2. Alignment of railway line refers to the direction and position given to the centre line of the railway track on the ground in the horizontal and vertical planes. Horizontal alignment means the direction of the railway track in the plan including the straight path and the curves it follows. Vertical alignment means the direction it follows in a vertical plane including the level track, gradients, and vertical curves. Introduction
  • 3. A new railway line should be aligned carefully after proper considerations, as improper alignment may ultimately prove to be more costly and may not be able to fulfill the desired objectives. Railway line constructions are capital-intensive projects, once constructed, it is very difficult to change the alignment of a railway line because of the costly structures involved, difficulty in getting additional land for the new alignment. Importance of Good Alignment
  • 4. Basic Requirements of an Ideal Alignment • Purpose of the New Railway Line • Integrated Development • Economic Considerations • Maximum Safety and Comfort • Aesthetic Considerations
  • 5. Railway Engineering book written by SATISH CHANDRA Professor, Department of Civil Engineering, Indian Institute of Technology Roorkee Reference