22 stations, 29.1 km: How Rs 12,200-crore Thane Ring Metro will improve connectivity

The proposed Thane Integral Ring Metro has crossed a major milestone after receiving Coastal Regulation Zone (CRZ) clearance from the Union environment ministry. The approval has been granted subject to strict environmental safeguards aimed at protecting mangroves, creeks and other ecologically sensitive areas. The clearance removes one of the project’s biggest regulatory hurdles while placing environmental protection at the centre of its execution. (AI-generated images used for representation purposes)

The Thane Ring Metro is a Rs 12,200-crore infrastructure project planned over a 29.1-km corridor. The network will include 22 stations, of which 20 will be elevated and two underground, along with an 18-hectare depot to support operations and maintenance. Once completed, the metro is expected to become one of Thane’s biggest urban transport projects. (AI-generated images used for representation purposes)

The metro is expected to witness a steady rise in passenger numbers over the coming years. Daily ridership has been projected at 6.47 lakh passengers in 2029, increasing to 7.61 lakh by 2035 and reaching 8.72 lakh by 2045. The projections indicate growing dependence on the Ring Metro as Thane’s population and commuting demand continue to increase. (AI-generated images used for representation purposes)

Several design modifications have been introduced to minimise the project’s ecological footprint. The depot layout has been revised to avoid blocking creeklets connected to Vasai Creek, reducing the risk of flooding. In another key change, viaduct pillars near Kolshet Road will now be constructed along the banks of the nullah instead of inside the stream to limit environmental disturbance. (AI-generated images used for representation purposes)

The metro alignment passing through mangrove areas has been retained because of planning constraints and adjoining coastal road works. However, the project has already secured Stage-I forest clearance for diversion of 7.6473 hectares of mangrove forest land. This approval enables work to proceed while requiring compliance with the environmental conditions laid down by authorities. (AI-generated images used for representation purposes)

Despite the mitigation measures, the project is expected to impact around 5,380 mangrove trees during construction. The affected mangrove area is estimated at approximately 6.5 hectares, making ecological conservation a major focus of the project. The environmental conditions attached to the CRZ clearance are intended to reduce and compensate for this impact. (AI-generated images used for representation purposes)

To offset the environmental impact, authorities have mandated compensatory mangrove plantation at a 1:3 ratio, ensuring three new mangroves are planted for every affected tree. The project will also involve restoration of damaged mangroves during construction. In addition, periodic monitoring by an expert agency has been made compulsory to ensure environmental safeguards are followed throughout the execution period. (AI-generated images used for representation purposes)

The Ring Metro is designed to create a circular rapid transit network connecting key parts of Thane through a 29.1-km corridor and 22 stations. With CRZ clearance now secured and environmental safeguards incorporated into the project design, it has crossed a major regulatory milestone. The focus will now shift towards securing the remaining approvals and taking the ambitious metro project closer to implementation. (AI-generated images used for representation purposes)