According to the rating agency, investors would factor in the freight-heavy nature of national highway traffic, the associated volatility, and reduction in road freight growth expected after the implementation of the Dedicated Freight Corridor (DFC) before placing bids.
Further, implementation of the Goods and Services Tax (GST) regime, while not necessarily negative for road traffic, may alter the type of vehicles that would be used on certain routes, it said.
He pointed out that there could arise issues pertaining to competing roads. "If an alternate route is built and is longer than the original stretch by 20 per cent, then it is not treated as a competing route," Koparkar said.
In TOT model, the National Highways Authority of India (NHAI) transfers ownership and the right to collect toll of operational highways to private entities for 30 years in return for a one-time upfront payment.
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"Theoretically, Rs 40,000 crore can fund the construction of 2,800 km of four-lane national highways, which would be equal to the execution expected in fiscal 2017," it said.
Crisil estimates that between fiscals 2018 and 2020, construction of highways would require investments of Rs 2.2 lakh crore, or more than twice the Rs 1 lakh crore set to be spent between fiscals 2015 and 2017, with higher execution of publicly funded projects.
Presently 6,500 km of highways are being maintained by
"Previous maintenance models such as the operate-maintain-transfer (OMT) did not succeed because there was fixed annual increase in payments to the authority irrespective of traffic," Srinivasan said.
Contract tenures were also shorter, leading to poor maintenance. As a result, only 2,500 km of highways have been awarded on OMT so far with just 6-7 firms participating in such projects, the report said.