The Central Road Research Institute (CRRI) says 75 per cent of road repair costs can be saved if the drainage system is improved in Delhi city. PK Jain, head of the department and chief scientist at CRRI, says, the number one reason for bad roads is poor drainage. If the drainage system is improved, 75 per cent of road repair costs can be saved. The scientist adds that even roads built using good technology deteriorate quickly because of the poor drainage along roads, where side drains have been
In Delhi city at least 500 roads are going to be carpeted with concrete with their new owner, Public Works Department (PWD), looking to improve the life span of stretches prone to waterlogging. Most of these 500 roads were under the municipal corporation, till the PWD, a Delhi government department, took custody in 2012.