Enginneering technique

is a construction technique that is used mainly to rotate the arm shoulder and concrete highways found by Tjokorda Raka Sukawati. With this technique, the arm is placed highway parallel to the road below, and then rotated 90 ° so that the construction does not interfere with traffic flow on the street below. This technique is considered to be very helpful in making the highways in large cities that clearly have limited space constraints of a given city, especially during the construction and infrastructure development activities should not interfere with community activities, especially the city of traffic and vehicles that can not be stopped only for reasons of road construction.

In the 1980s, Jakarta which was already experiencing traffic congestion problems, many building highways as one solution to improve traffic infrastructure. As a contractor at the time, PT. Work Hutama order to build a highway on the road by pass A. Yani where development should ensure that the road must remain functional.

With these problems, the directors discussed Gautama work after getting orders to build highways between until around the year 1987. Disentangle complex issues, the requirement to support the road is a row of concrete pillars, another one is 30 meters, on top of concrete columns stretching 22 meters wide. The vertical (pier shaft) hexagon-shaped 4 meters in diameter, standing on the green line. It is not difficult, which caused problems were decorating arm (pier head). If the conventional way, which made the install iron buffer (protesting) stretch of the arm under it, but it will clog protesting road below. Another way is to hang protesting but costs more expensive.

In response to these problems, Ir. Backorder aka Hiawatha's, proposed the idea to build the first pole and then decorating arm in a position parallel to the green line, after it played to form the shoulder. The only problem is how to play it because the arm will weigh 480 tons.