Experts in the city claim that the concreting of service roads along both the Western Express Highway (WEH) and Eastern Express Highway (EEH) is an expensive undertaking. They also suggest that concreting should be done only in areas with heavy traffic on the service roads.

Nadakumar Salvi, former member of the Brihanmumbai Municipal Corporation's road monitoring committee, said, “Concreting is a costly process. The cost of an asphalt road is around Rs 3,000 per square metre, whereas, for concrete, it exceeds Rs 12,000. Nowhere in the world are highways made of concrete. Even with Mumbai's rainfall, asphalt roads can work effectively if they are built to proper technical specifications, such as correct slope and drainage systems.”