Experiment with music-making road stopped after one day
If a motorist drove the permitted speed on the N357 in Friesland, the Frisian National Anthem would be played at the correct speed. Unfortunately, the experiment was stopped after one day. Motorists drove extra fast to see how fast the music could be played. In addition, local residents heard all sorts of noises mixed up; the road not only caused dangerous situations, but also inconvenience.
Once and for all: eradicating the yellow fever mosquito in Aruba
The yellow fever mosquito in South America transmits several diseases in large numbers, including the dengue virus, the yellow fever virus, chikungunya and the Zika virus. The cost of dengue on Aruba is high and many agreed on the need for these actions. It was not possible to raise the intended amount; more than half was promised, but that was all. More parties were sceptical and eventually the project was stopped.