Clearway in Airport engineering – Get Details information about clearway in civil engineering, clearway length, basic runway length, factor, etc.
Airport Engineering in Civil Engineering
What is Clearway in Airport Engineering?
Clearway: An area beyond the end of the runway, centrally located along the extended center of the runway and not less than 150 m in width is known as clearway.
Provided as a precautionary measure against engine failure.
Clearway length < 0.5 *(1.5 * Take off distance – 1.15 * lift off distance)
The basic runway length is affected by the following factors:
1) Aircraft characteristics: The most critical aircraft is identified and its take – off and landing weight is noted to find the runway length.
2) Maximum of the three conditions
- Normal take – off case
- Normal landing case
- Emergency stop case
3) Elevation of Airport and Airport Reference Temperature.
4) The gradient of the Airport.
Normal takeoff case:
✓ Runway length + Clearway – Take – off distance
✓ Take off distance ≥ 115% of Runway length. ✓ Width of clear way must be > 150 m.