(English) TIA needs to upgrade shortly: study report

TIA, file photo/ekantipur
TIA, file photo/ekantipur

KATHMNDU, Nepal–The lower layers of runway at Kathmandu’s Tribhuvan International Airport (TIA) requires to dig up due to its ageing blacktop foundation, suggested a preliminary report.

Stating that foundation needs to coat further, a study carried out by Ayesa Ingenieria of Spain said damage in the lower blacktop layers is reflected quickly in the upper surface leading cracks and other damage.

The Civil Aviation Authority of Nepal (CAAN) had assigned the Spanish company to conduct a study of the runway in 2013 as country’s sole international airport witnessed frequent crack down.

Frequent happenings of cracks on the runway at the country’s sole international airport have been hitting hard the smooth operation of aircraft since 2011. Dozens of flights were diverted or delayed due to problems in the 3,050-m runway in the past.

Cracks were first seemed on the runway in June 2011, and they have become a recurrent problem now onwards.

Citing frequent cracks on runway, CAAN in August last year requested international carriers serving Kathmandu to use smaller aircraft or limit their load to 196 tonnes.

International operations were expected to double in the next 20 years, and that there would be an increase in the operation of wider and well-organized carrier, according to the study.

The report also suggested that removal of weak layers will help TIA to keep its runway in decent condition for the next 20 years.

The report has also suggested using Kjellbase, which is normally used at international airports that need a deep pavement reconstruction.

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