The Grand Plan for Kovai Metro
For years, Coimbatore, a major industrial and commercial hub in Tamil Nadu, has been pushing for a mass rapid transit system to ease its growing traffic congestion. The proposed Coimbatore Metro, with an estimated Phase 1 cost of around ₹9,000 crore,
was envisioned as the solution. Managed by Chennai Metro Rail Limited (CMRL), the initial phase planned two elevated corridors along the city's busiest arteries, Avinashi Road and Sathyamangalam Road. The plan, which received approval from the state government in early 2024, promised to connect key locations, including the airport, bus terminals, and major commercial centres, offering a modern alternative to the city's strained road network. Proponents argued that a metro was essential for a city of Coimbatore's economic stature and growing population.
A Reality Check from the Centre
The project's momentum came to a halt following an assessment by the Union Ministry of Housing and Urban Affairs (MoHUA). The Centre has now twice rejected the proposal, raising fundamental questions about its viability. The core of the ministry's argument is that the metro offers "limited time gains." According to their analysis, the claimed time saving of eight minutes on a 7.5 km peak-hour trip would largely be negated once factors like walking to the station, waiting for the train, and last-mile connectivity are included. MoHUA pointedly stated that for such short journeys, "there will be hardly any savings in time by metro." The ministry believes significant time and cost savings, the primary drivers for people to switch from private vehicles, only become a factor for trips longer than 15 km, which is above the average trip length cited in the project report.
More Than Just Minutes
The Centre's objections extend beyond just travel time. The ministry also expressed doubts about the passenger demand projections in the Detailed Project Report (DPR), finding them insufficient to justify the massive capital investment. Another key issue raised was the city's underdeveloped feeder bus system. MoHUA argued that a metro system cannot attract significant ridership without robust last-mile connectivity, highlighting that Tamil Nadu had not participated in the Centre's PM e-Bus Sewa scheme, which could have helped address this gap. Furthermore, the ministry disputed the population figures used by the state to meet the 2 million population threshold required by the 2017 Metro Rail Policy. While the state used 2022 projections, the Centre insisted on using the 2011 Census data, which puts Coimbatore's population lower.
An Alternative Route Suggested
Instead of a high-cost metro, the Centre has recommended that Coimbatore explore a Bus Rapid Transit System (BRTS) as a more suitable and cost-effective solution. This alternative involves creating dedicated, segregated lanes for high-capacity buses, which can be implemented at a fraction of the cost of a metro. The ministry clarified that it would support proposals for either an at-grade or elevated BRTS. This recommendation is based on lessons learned from other smaller cities where metro systems have struggled with low ridership, partly due to the negligible net time saved on shorter urban journeys. The suggestion has been met with disappointment and protest from local business associations and citizen groups in Coimbatore, who feel the city's growth potential is being overlooked.
What Happens Now?
With the proposal returned to the state for a second time, the future of the Coimbatore Metro is uncertain. Local industry bodies have urged the state government to study the Centre's objections, prepare a revised DPR, and re-engage with the Union ministry. The debate has also taken on a political dimension, with some activists alleging discriminatory treatment, pointing out that other cities with smaller populations, like Agra, have received metro approvals. For now, the project is stalled. The path forward will require a significant revision of the project's technical justifications to convince the Centre of its necessity, or a pivot towards the recommended BRTS model, forcing a major rethink of Coimbatore's public transport future.
