In some places, amphibians can be very bothersome. They wander to the light, stay at basement or garage underground entrances.
Amphibians nets are used for enclosures to protect motorway culverts. The nets make a barrier for amphibians, reptiles and other small animals attempting to cross the motorway and direct them to the right passage.
The nets help to limit death rate of small animals staying near building sites and motorways.