Traffic jams in the sky

The peak period for over-flights crossing Sri Lankan airspace has just ended.

Starting in late December and ending around mid-March, a stream of charter flights by Indonesian and Saudi Arabian carriers as well as a few by Singapore Airlines clog the airways, creating a veritable traffic jam in the sky, as they take Haj pilgrims to and from Mecca.

With up to 70 flights a day, this three-month period is the highest revenue generator from air traffic control services provided to over-flights for the whole year.

"All aircraft converge over us," explained Sherina Casseer, a senior air traffic controller and supervisor at Airport and Aviation Service (Sri Lanka) Ltd. (AASL). "Fortunately for us we're situated in a central location - Haj pilgrims over fly Colombo from Indonesia to Saudi Arabia and back."

From a look at a map of the air routes crossing over Colombo it is easy to see why the island has potential to become an aviation hub. Known as airways these routes are the best way for aircraft to cross from east to west and north to south. Many of them converge over Colombo including the M300 air corridor, taking aircraft from Singapore to the Middle East and on to Europe, and P570 from Indonesia to Jeddah taking Haj pilgrims.

These along with one from Madras are among the busiest but new air routes are being planned, including one south of Trivandrum, and they are expected to ease the congestion, said Casseer who works at the Ratmalana Area Control Centre and Flight Information Centre.

This monitors aircraft activity above 10,000 feet in what's known as the Colombo Flight Information Region and maintains what's called 'positive' control of the airways, with pilots taking instructions from air traffic controllers.

Air traffic controllers must maintain the minimum separation between aircraft to ensure there are no collisions and provide flight information such as other traffic, weather and danger areas to be avoided such as military firing ranges

"This is a very heavy period," said Casseer. "To handle this heavy traffic no one else is taxed as much as the area control centre. The traffic increases to a level where we can hardly manage."

The centre responds by having controllers work shorter hours and increasing the staff on duty, because of the stressful nature of the job and the enormous responsibility on their hands - the lives of hundreds of passengers passing unseen high above in the sky.

Maintaining the required separation between aircraft when traffic is heavy is a difficult task - made even more difficult since all the aircraft prefer to fly at the same altitude. Controllers must ensure they keep aircraft at least a thousand feet and 10-15 minutes apart.

Sometimes decisions must be taken in seconds since fast-moving passenger jets can cover eight miles a minute. "Pilots don't like to lose even a minute - no one wants to descend from the optimum flight level which is the most cost-effective," said Casseer. "Pilots grumble when asked to make deviations," said senior air traffic controller Rohan Manukulasuriya. This is not infrequent since aircraft tend to meet when airways cross each other as they do over Colombo.

Big aircrafts weighing over 260,000 kg are charged $250-300 per over flight. At peak periods over flights generate more than a million rupees a day and are an important and regular source of foreign exchange but the rarefied world of air traffic control is little seen by the public despite the vital service it performs.

AASL usually earns about Rs. 700 million a year, according to Airports and Aviation Authority of Sri Lanka chairman Hemasiri Fernando. But revenue fell last year to Rs. 450 million because it did not charge landing fees for nine months after the July 2001 terrorist attack on the airport. This was an effort to get carriers to resume flights that were withdrawn when airlines were hit by heavy war-risk insurance premiums after the attack.

The Ratmalana Area Control Centre can monitor activity up to 200 miles through a radar on top of Pidurutalagala. There are plans to shift the Area Control Centre from Ratmalana to Katunayake.

Early morning is the busiest time for air traffic control at Katunayake whose radar centre handles approach control of flights to and from the Bandaranaike International Airport up to a range of 60 miles. They usually handle 80 movements a day, international flights and numerous air force flights, according to air traffic controller Jude Peiris who operates from the control tower that provides an excellent view of all aircraft movements on the apron. These movements are another source of foreign exchange revenue.

Landing fees, for instance, are charged according to the weight of the aircraft, said chief air traffic controller Ranjith Silva. So a Boeing 474 jumbo jet weighing 450,000 kg pays about $1,600 per landing. There are no parking charges for the first three hours but thereafter, an aircraft is charged 10 percent of the landing fee for every hour it sits on the tarmac. There are other fees such as marshalling charges.

"Nights are heavy. We usually have over 40 over flights a day with 30 in the night," said Silva.

It takes several years to train and bring up to standard an air traffic controller and the centre has been short-staffed for some time, said senior air traffic controller Mahesh de Silva. He described as a "big blow" the loss of trained and experienced senior controllers who migrated. At Ratmalana the staffing shortage is more acute and controllers are compelled to work overtime.

Lack of parking space at the BIA means that there are restrictions such as the number of technical landings - for refuelling or repair - if not for which more money could be earned. During the tourism season some airlines, notably non-scheduled Russian charter flights, prefer to park at BIA for up to 10 days, Mahesh de Silva said. The BIA now has 17 parking bays in the main apron and four for domestic or Sri Lanka registered cargo operators. Under the planned modernisation project the number of parking bays will be increased to 25. De Silva looks forward to the day when the apron is enlarged and he can accommodate more aircraft.

AASL chairman Hemasiri Fernando said an urgent requirement was an alternative runway about 150 miles away for planes to land in case they cannot use the BIA because of an emergency such as bad weather. Aircraft now use south Indian airports as their alternative runway but this means planes have to carry excess fuel and hence is a more costly exercise. The alternative runway has to be in a different climatic zone - preferably in the dry zone - and Weerawila and Hingurakgoda are considered the best locations, Fernando said. This is expected to cost about $50 million. Handling facilities at the BIA are also being upgraded in a project that is expected to cost around $70 million and funded by Japan. "This is a very urgent requirement because by 2004 according to projected passenger traffic we are going to face many operational difficulties because of the lack of modern facilities and limited space," Fernando said.

The BIA now handles about 2.7 million passengers and 100,000 MT of cargo a year. By 2010 this is projected to increase to five million passengers and 270,000 MT of cargo and again to double to 10.5 million passengers and 733,000 MT of cargo by 2020.

Currently, studies are underway on plans for a second runway at Katunayake, although this is not an immediate requirement because the existing one is under utilised, Fernando said. Rather it is required as part of the effort to make the BIA a regional hub for passengers and cargo.

A site about 1.2 - 2 km north of the present runway is being considered for which the air base would have to be shifted.

The entire project, which includes a new terminal between the two runways, is estimated to cost about $1.5 billion.

"This is a very long term project because current and forecast passenger volumes are not enough to require that kind of investment," Fernando said.

Cathay Pacific voted airline of the year

Cathay Pacific Airways has been voted "Airline of the Year" in the 2003 Skytrax survey. In addition, Cathay Pacific was also named "Best Airline - Asia" and "Best Airline - Transpacific" for the second consecutive year.

Skytrax Research is an UK-based consulting firm, which conducts the world's largest passenger survey. According to survey comments from Skytrax: "Despite difficult times the airline industry faced throughout 2002, customers made their opinions known. Cathay Pacific drew considerable support for the quality of staff service standards, and scored very highly for their front-end premium products."

Cathay Pacific has also been recently voted as Hong Kong's premier company in terms of high quality services and products in a poll conducted by the Far Eastern Economic Review in a recent survey.

Facing challenges of water resources

A training seminar on "Facing Challenges of Water Resources in the 21st Century - Scientific Perspective" will be held on April 23 in Colombo.

It is organized by the College of Chemical Science of the Institute of Chemistry, Ceylon to coincide with 2003 being declared the UN year for freshwater.

It is ideally suited for agriculturists, research scientists, university academics, industrialists, postgraduate students and technical staff engaged in testing water quality and sampling of water.

It is another one in a series of continuous education programme for profession development.

The resource persons are Prof. H.D. Gunawardena, University of Colombo, Prof. C.M. Maddumabandara, Chairman, Interim National Water Resource Authority, Dr. M. Samad, Team Leader, WRIP, International Water Management Institute, Dr. A.M. Mubarak, Director, Industrial Technology Institute, Dr. Athula Seneviratne, Head, Department of Geology, University of Peradeniya. B.S. De Silva, Director, Standardization Division, Sri Lanka Standards Institute and Dr. Suren Wijekoon, Senior Lecturer, Department of Chemical and Process Engineering, University of Moratuwa.

Malaysian firm to build housing for public servants

Sri Lankan public servants will soon have access to affordable housing as a result of a new investment by Malaysia's Pembinaan Wincom Sdn Wincom, which will begin this new project in partnership with the Ministry of Public Administration.

The scheme involves the development of a low cost housing project worth $ 70 million that will soon be implemented. An agreement was signed between Pembinaan Wincom Sdn and the Board of Investment on Wednesday. Dato Abdul Azim Mohamed Zabidi, Chairman, Bank Simpanan Nasional and Arjunna Mahendran, Chairman/ Director General, BOI signed this agreement. Also present were a large delegation from Malaysia, representatives from the Sri Lankan private sector, officials from the Ministry of Public Administration and the BOI.

The Malaysian company has already a lot of experience in this area having already worked on similar projects in Malaysia and in India. The units will initially be built in Karapitiya and in Baddegama in the southern Galle District as a pilot project and if successful, would be expanded to other parts of the country. Pembinaan Wincom will begin construction of 550 units in Karapitiya and 1,500 units in Baddegama. There have been 8,000 applications so far from public servants.

 


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