I have seen concrete roads in some places, but not in Kerala or India. In Qatar, I have seen that in a place where water filling station is located and water spilling out on the roads from the water tanker vehicles, the roads were very soon damaged due to the presence of water throughout days and nights. The government Authority did maintain works multiple times as usual. But, they realized that it will not work any more as it was getting damaged again and again. At last, they built concrete road and it was first time ever I have seen any road which is built with concrete. After that, the road was never damaged untill I left Qatar. This was a lesson to me which proved that in Kerala concrete roads are more efficient than the usual roads as it is one of the most rainy places in India. But, why kerala government do not take a step towards it? Here I suspect the " roadcontract businesses" happening every year before raining and after raining. If concrete roads are becoming popular, the current "road contract business" could be affected many contractors and even politicians and political parties' income. Here is the secret behind "road contract businesses" have been relying for many years.
The second examples come from Australia. I have seen concrete roads even in freeway ( the begining of M80 Greensborough from Greensborough,for example) too. I also have seen that roads buil by concrete and only the surface is built normally with tar and other substances. Which is also one of significant models that we can adopt to build long lasting roads. But, it doesn't happen just because... again my suspects... will continue...
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