The idea of building Wildlife crossing in Malaysia is not new and already done in Malaysia. We need to study all potential areas where wildlife crossing the highways in order to avoid road kill.

A viaduct is a bridge composed of several small spans for crossing a valley or a gorge. The term viaduct is derived from the Latin via for road and ducere, to lead. Theancient Romans did not use the term; it is a modern derivation from an analogy withaqueduct. Like the Roman aqueducts, many early viaducts comprised a series of arches of roughly equal length. Viaducts may span land or water or both.

http://www.thestar.com.my/news/environment/2014/09/22/ecoviaducts-are-built-to-facilitate-movements-of-wildlife-but-do-they-work/

Wildlife crossings are structures that allow animalsto cross human-made barriers safely. Wildlife crossings may include: underpass tunnels, viaducts, and overpasses (mainly for large or herd-type animals); amphibian tunnels; fish ladders; tunnelsand culverts (for small mammals such as otters,hedgehogs, and badgers); green roofs (for butterflies and birds).

Wildlife crossings are a practice in habitat conservation, allowing connections or reconnections between habitats, combating habitat fragmentation. They also assist in avoiding collisions between vehicles and animals, which in addition to killing or injuring wildlife may cause injury to humans and property damage.

Similar structures can be used for domesticated animals, such as cattle creeps