The New Toll Formula Explained
The Ministry of Road Transport and Highways has amended the National Highways Fee Rules, 2008, introducing a significant change in how toll charges are determined for complex road structures. Previously, the tollable length of a bridge, tunnel, or elevated
section was often calculated as 10 times its actual length to account for higher construction costs, with no upper limit. This could lead to disproportionately high tolls, especially on urban routes dominated by flyovers. The new rule, effective from early July 2026, introduces a cap. Authorities must now calculate the tollable distance using two methods and apply whichever is lower. The first method is the traditional one: 10 times the structure's length plus the length of the remaining road. The second method is a new ceiling: five times the total length of the entire highway section. By forcing the use of the lower figure, the rule ensures that tolls on structure-heavy corridors are kept in check.
Why This Change Was Necessary
The move is a direct response to the escalating cost of travel on modern highways, which increasingly feature complex and expensive elevated structures. The rationale for the previous 10x multiplier was to help recover the steep costs associated with building and maintaining bridges and flyovers compared to standard at-grade roads. However, this formula sometimes resulted in what commuters felt were excessive charges. For instance, a highway that was mostly comprised of elevated sections could have a tollable length far exceeding its physical distance, making daily travel unaffordable for many. Public feedback and concerns over the financial burden on commuters, particularly on urban ring roads and bypasses, prompted the government to seek a more balanced approach that still accounts for infrastructure costs but provides tangible relief to road users.
A Real-World Example of Savings
To understand the impact, consider a hypothetical 40-kilometre highway section. If 30 km of this route consists of elevated structures and 10 km is a regular road, the old system would calculate the tollable length as 310 km (30 km x 10 + 10 km). Under the new rule, authorities must compare this to the new cap, which is five times the total length, or 200 km (40 km x 5). Since 200 km is lower, the toll will be based on this shorter distance, resulting in a significant reduction. In another scenario, if a 40-km section has only 10 km of structures, the old method would yield 130 km (10 km x 10 + 30 km), while the new cap method would yield 200 km (40 km x 5). In this case, the lower figure of 130 km would be used. The rule always defaults to the calculation that benefits the commuter.
Who Benefits and When?
This policy change is poised to deliver the most significant benefits to daily commuters in and around major cities, where elevated expressways and flyovers are common. It will make travel on urban bypasses and ring roads more affordable. The implementation, however, will be staggered. For existing toll plazas that are publicly funded, the new formula will be applied from the next scheduled date of user fee revision. For plazas operated by private concessionaires under a Build-Operate-Transfer (BOT) model, the change will take effect only after the concession period ends and the project is transferred back to the NHAI. All newly constructed toll plazas will adopt the revised formula from the day they begin operations. Commercial and heavy vehicles are also expected to see substantial savings, which could help lower overall transportation and logistics costs.
The Bigger Picture for Infrastructure
This new tolling cap is part of a broader effort by the government to streamline costs and enhance affordability in the national highway sector. In recent years, the high cost of constructing elevated corridors has been a subject of debate. The Comptroller and Auditor General (CAG), for example, had previously flagged the high per-kilometre construction cost of projects like the Dwarka Expressway, which was largely elevated. By capping the toll burden that can be passed on to consumers, the NHAI is indirectly incentivising more cost-effective project designs. While this move is decidedly pro-consumer, it may also influence how future projects are planned. Developers might become more cautious about proposing very complex, high-cost elevated projects in dense urban areas if the ability to fully recover costs through tolls is limited. Balancing rapid infrastructure growth with user affordability remains a key challenge.
