Dubbed the “singing road”, the equipment emits melodic harmonies when a motorist exceeds the speed limit or veers off-course to the side of the road, warning them of imminent danger.

“The singing road along the Madiun-Surabaya toll road is the only one of its kind in Indonesia. We installed the equipment to remind motorists to always be mindful of road signs, including the speed limit,” said JNK head AJ Dwi Winarsa on Tuesday as quoted by kompas.com.

The equipment, which was previously installed along kilometer 618 of the toll road, was moved to km 644 from Surabaya to Madiun – an area known for its high rate of traffic accidents.

Dwi said the equipment previously helped reduce the number of traffic accidents along km 618.

He went on to say the equipment would play the melody of “Happy Birthday” when a motorist drove on it at 80 km per hour or more.

In addition to the singing road, JNK also installed several other facilities such as mobile readers at tollgates and designated health posts along several toll roads.

“We have also installed one security camera per one km. In total, we have installed 100 [security cameras],” Dwi said.

He called on toll road users to comply with the 100 km per hour speed limit, as many traffic accidents occurred because of speeding motorists. (rfa)