Latest Answer: 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.
Latest Answer: Najafgarh-Nangloi, Uttam Nagar-Najafgarh and Rama Road near Karol Bagh are among the main stretches of the 500 roads while rest of them are small stretches in various colonies. Most of the roads were under the municipal corporation of Delhi (MCD), but were taken into the custody of PWD in 2012.
