We don't know exactly how or what causes pothole, but we tried to explain it with this video:

However, experts in Wales may have found a way to make roads in the country more durable.

First in the world

Believe it or not, authorities in Wales are using used diapers to resurface a stretch of roads in the country.

According to a report by Wales Online, a total of 107,000 used diapers were used to resurface the A487 trunk road between Cardigan and Aberystwyth, which stretches 2.25 kilometres.

The initiative, supported by the Welsh Government, is the brainchild of Rob Poyer, founder of diapers recycling experts NappiCycle.

Back in 2009, NappiCycle found a way to re-use soiled diapers, by first cleaning them and then seperating plastics and cellulose fibres.

The recovered fibres can then be used to build notice boards for schools and offices, panelling, under laminate flooring and other insulation.

Image credit: Malay Mail

For the road resurfacing project, a total of 4.3 tonnes of recovered fibre from the nappies was added to the bitumen that glues together asphalt road surfaces.

The diaper-enhanced asphalt is said to be more durable compared to normal asphalt, but with a reduced carbon footprint.

Re-using soiled diapers can also save the environment, as the Welsh government said the initiative could see a reduction of billions of diapers being disposed of at landfills in the UK annually.

According to the report, three billion diapers are disposed of in the UK every year, with 400,000 tonnes of nappy waste in landfill annually. These diapers will take 500 years to break down.

Image credit: Wales Online

With that much nappy waste, there's no harm trying to see if this initiative could help strengthen the durability of the roads in the country.

Well done, Wales! We wonder if the Malaysian government would follow in the footsteps of our counterparts in Wales.