Surabaya – BRIN Public Relations. Supervision and control of river and lake transportation is important to ensure safety of transportation in the waters. For this reason, testing the worthiness of water transportation modes is a must.

This is in congruent with Law Number 17 of 2008 concerning Shipping, which stipulates that shipping safety and security is a condition in which safety and security requirements concerning transportation in waters, ports, and maritime environment are fulfilled. Safety and security of transportation is not only in sea waters but also in inland waters which includes rivers and lakes, hence it is important to observe fulfillment of the requirements of seaworthiness and navigation.

The Minister of Transportation, Budi Karya Sumadi, said that potentially high occurrence of accidents in water transportation is due to non-fulfillment of eligibility requirements. “The potential occurrence of river and lake transportation accidents is quite high due to unfitness of river and lake vessels aside from to human factors that often overlook safety standards. Therefore, this consolidation webinar is a positive momentum to focus on the safety of river and lake transportation,” said the Minister of Transportation in his remarks at the National River and Lake Transportation Safety and Security Consolidation, Tuesday (25/01/2022).

Budi added that it is necessary to step up socialization and education to ship crew members about safety and security standards, especially for users of river and lake transportation to avoid accidents due to human factors.

This was shared by the Head of Hydrodynamics Technology Center (BTH) of the National Research and Innovation Agency (BRIN), Muryadin. In his presentation, he said that obstacles in shallow waters are one of causes of accidents in the waters. “Frequent ship accidents in rivers and lakes can be caused by failure to observe shallow water resistance, riverbank erosion due to wake wash, and emergence of squat effect,” said Muryadin.

For this reason, testing the feasibility of water transportation modes according to Muryadin is important. BRIN, through the Hydrodynamics Technology Center, has a hydrodynamics laboratory that functions to administer Ship Model Tests on river and lake transportation modes.

“This test is needed to prevent accidents, whether caused by overload or failure of stability/maneuverability on the ship,” said Muryadin.

Muryadin elaborated the services provided by the Hydrodynamics Laboratory, including Resistance Test, Self Propulsion Test, Maneuvering Test, and Seakeeping Test. Resistance Test is a test to get resistance data from pre-designed ship model.

Self Propulsion Test is a test to obtain propulsion data (thrust) generated from the propeller on pre-designed ship model. Maneuvering Test is a test to obtain data on the diameter of the ship when turning (tactical diameter), the first and second overshoot angles.

While Seakeeping Test is the test to obtain data on the ability of the ship to withstand waves from various directions. This service can be selected according to the ship’s test requirements.

“Various types of services at the Hydrodynamics Laboratory are supported by modern industrial-scale facilities and are the largest in Southeast Asia. These facilities include Towing Tank (TT), Manauvering and Ocean Basin (MOB), and Cavitation Tunnel (CT). Other supporting facilities are Ship Model Workshop (SMWS), Mechanical and Propeller Workshop (MWS), Instrumentation and Calibration Workshop and Numerical Simulation Workshop,” he added.

According to Muryadin, the design of a ship should be adjusted to the characteristics and conditions of rivers and lakes in the respective region, but the structure must comply with the specified standards. “Fishing boats in Tegal are certainly different from fishing boats in Lamongan. This is also true for boats used in rivers and lakes, the condition is different” he concluded. (sao/ed:pur)