Central Railway to Modernize Operations on Steep Ghat Sections

The Central Railway (CR) is set to undergo a major upgrade with the planned installation of Speed Sensing Devices (SSDs) to address operational challenges in the Bhor and Thal ghats. These mountainous sections, which connect Mumbai to Pune and Nashik, are known for their steep gradients, often requiring trains to halt multiple times as a safety measure. This practice, while essential for ensuring passenger safety, has led to significant delays over the years. The introduction of SSDs is expected to minimize these inefficiencies. The proposal is currently awaiting final approval from the Railway Board.

The installation of these devices will take place near Kalyan, where the rail tracks are marked by a 1:37 gradient, indicating a rise of 1 metre for every 37 metres traveled. By monitoring train speeds in real time, SSDs will regulate movement and allow trains to pass safely without frequent halts. The delays caused by multiple stops, estimated at 20-25 minutes per instance, are expected to be reduced significantly. Officials have expressed confidence that punctuality and operational efficiency will be greatly improved once the devices are in place.

Long-distance trains entering Mumbai currently make at least four halts on these steep sections, particularly during descents, as a precautionary measure. Under the new system, the SSDs will ensure that trains maintain safe speeds, thereby reducing the dependency on manual halts. The devices have already been tested by the Railway’s Research Designs and Standards Organisation (RDSO) and are designed to enforce speed limits between 25-40 kmph, ensuring smooth and safe navigation of the slopes.

Additional engines, known as "bunkers," are frequently deployed on these routes to assist trains in managing the steep climbs. However, this practice adds to the operational complexity and time delays. With the introduction of SSDs, reliance on such measures is expected to decrease. The upgrades are part of CR's broader strategy to modernize its operations and enhance passenger convenience.

In addition to the SSD project, improvements are being carried out along the Kalyan-Kasara corridor. Platform extensions at Kasara, the construction of a separate track for freight and long-distance trains, and the development of a 67-km third rail line costing ₹793 crore are underway. These initiatives, along with the SSD installations, aim to improve safety, reduce delays, and modernize the historic yet vital railway network.