The 1990 Tbilisi air tram accident was an air tram accident in Tbilisi, the Soviet capital of Georgia on June 1, 1990, resulting in 20 deaths and at least 15 injuries.
The accident involved two gondolas on the ropeway route between Rustaveli Avenue and Mount Mtatsminda. Red gondola number 1 is on its way down from the slopes, near the lower supporting tower, and the red gondola number 2 approaches the top tower, when the freight rope breaks inside the upper gondola coupler. Both gondolas glided together. The lower gondola hit the wall from the lower station, killing 4 people and injuring many others. The upper gondola produces a higher speed (ropeway length is 863.3 meters); when reaching the lower support tower, he crashed into a broken carriage rope, which hung on the tower, causing the cable to tear the gondola. The collision was so strong that the track cord fell from the tower, hanging open gondolas on the roof. This also caused the cabin to slide further down, striking the roof of a six-story building below. This causes further damage to the gondola and causes people to fall 20 meters to the roof and the ground beneath it. 20 people were killed and at least 15 people were seriously injured. Most are children in a tour tour to Tbilisi from the 5th School of the regional city of Akhaltsikhe, to celebrate Children's Day. Surviving witnesses of both gondolas say that the brakes do not work in any of the gondolas, despite the desperate efforts of the guides and passengers who help them to pull the brakes.
In 1988, two years before the crash, the cable car underwent a major reconstruction under Chief Engineer Vakhtang Lejava. Initially the cable car using 3 supporting towers. Redesigning this means replacing a 20-meter-high mast with a 25-meter-high pole. Two short posts (10 and 12 meters high) were also replaced by a 20-meter-high mast. Prior to this change, the gondola had a slight climbing angle on the top two poles. Using a single higher pole causes the new gondola to walk from the top station horizontally to the pole and then, with a sharp angle, head down. The standard Georgia oval gondolas (with a capacity of 25 per gondola), manufactured in Tbilisi by Tbilisi Aircraft Manufacturing, were replaced by a larger Italian rectangle built by "Lovisolo" and provided by "Ceretti & Tanfani", providing passenger capacity larger (40 per gondola). The new gondola braking system is not working properly - when climbing the top pole, the braking system will not actually work. The service staff should climb onto the gondola and turn it off manually when this happens. To avoid this discomfort, the brakes are only turned off. In addition, on the day of the accident, the two gondolas had excess capacity: the lower gondola had 46 passengers, the upper gondola holding 47 passengers.
The accident investigation documentation does not identify the cause of a breaking carriage violation inside the coupler. Many unanswered questions still exist and the cause of the accident is unknown.
Cable tracks and hauling are dismantled while damaged gondolas are dismantled after 3 years. Poles and stations remain intact. The air tram line was never fixed. In 2014, the upper and second posts were dismantled because the tram restoration plan as a reversible cable car gondola, running from a relocated lower station. However, the location of the top station remains the same. The old lower station, because of its unique architecture, is a cultural heritage object. The planned restoration was abandoned due to local opposition and visual defects from the new lower station in one of the city's main squares in front of the Radisson Hotel. Another problem with the restoration is the five large supporting poles, two of which are located on a hilly road, causing narrow roads to reduce their width.
In January 2017, an air tram was under construction from the original bottom station, with the location of the top station remaining the same. The work will be done by Doppelmayr Garaventa Group. The main challenge is to adjust the backyard of the lower station to a monocable removable gondola infrastructure, since the lower station was only designed for the type of railway tram in 1958. Construction has faced problems due to the high density of small housing that appears in the backyard of the station lower throughout the year and the area near the lower lower pole becomes a challenge for large trucks with construction materials to be approached.
Video 1990 Tbilisi aerial tramway accident
See also
- the Caval cable car disaster (1976)
- Cavalese cable car disaster (1998)
- Saint-ÃÆ' â € ° tienne-en-DÃ © Â © voluy cable car disaster
Maps 1990 Tbilisi aerial tramway accident
References
Source of the article : Wikipedia
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