The concrete roads can survive for at least 20 to 25 years, which is five times longer than asphalt roads. During waterlogging, concrete roads gain strength as it improves its compactness.
Najafgarh-Nangloi and Uttam Nagar-Najafgarh Roads are horrible. First they have to be laid properly. It seems that the government has planned to relay the roads only because of the Assembly election scheduled for later this year.
Many places in Delhi have been witnessing this problem from years. PWD will be laying around 500 concrete roads in the city it seems. Hope most of the problem will be reduced after this.