Shield for metro near Chennai airport to prevent interference with radar signals

Chennai: The overhead electricity cable running past the airport to power the Metro Rail will soon get an induction shield to prevent it from interfering with radar signals.
The Airports Authority of India (AAI) has relaxed its objection to the elevated Metro Rail corridor along GST road, near the Chennai airport. The Chennai Metro Rail line from Officers Training Academy to the airport passes close to the flight approach path of the secondary runway. Though Metro Rail has reduced the height of the corridor to prevent it from hindering flight movement, a stretch of the line near Trident hotel continues to be a trouble spot. So, AAI has decided to make some changes to its facilities, while Metro Rail is making minor changes to its plans to resolve air safety issues.
A stretch of about 500 metres that falls under the approach path will require an induction shield as the power line for the Metro Rail as well as the movement of trains here will interfere with radar and instrument landing system (ILS) signals.
19/07/10 V Ayyappan/Times of India

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Categories: Airports Jul 2010