Line: Purple Line

Bengaluru Metro Purple Line: Connecting East and West

Overview

Bengaluru’s Namma Metro Purple Line serves as a crucial link in the city’s transportation network, covering a substantial distance from Challaghatta in the southwest to Whitefield (Kadugodi) in the east. As of 2023, the Purple Line spans 43.49 km, encompassing 37 strategically located stations.

Phase I: Pioneering Underground Metro

Initiated in 2007, Phase I of the Purple Line faced challenges in tunneling through mixed geology, causing delays. Despite setbacks, the fully elevated Reach 1 opened in 2011, followed by Reach 2 in 2015. The underground stretch from Mahatma Gandhi Road to City Railway Station completed Phase I in 2016.

Phase II: Expanding Horizons

The westward extension to Challaghatta and eastward extension to Whitefield (Kadugodi) are significant additions under Phase II. Opened in 2021 and 2023 respectively, these extensions mark continued growth in the Purple Line’s reach.

Phase III: Future Expansion

The Government of Karnataka envisions extending the Purple Line further, connecting Malur town in Kolar district and Bidadi in Ramanagara district during Phase III.

Operational Insights

Stations and Infrastructure: With 37 stations, including an interchange at Majestic, the Purple Line features underground stations built using the cut-and-cover method. Notable architectural elements include emergency exits, earthquake-resistant design, and provisions for passenger safety. Rolling Stock and Traction: The Purple Line operates with 150 metro coaches in DMC-TC-DMC formation, procured from BEML – Hyundai Rotem. Traction is achieved through 750 V DC third rail traction, ensuring efficient and safe operations. Signaling and Control: Alstom Project India Limited leads the consortium providing the control and signaling system. The Urbalis 200 Automatic Train Control system enhances safety and operational flexibility. Operations and Frequency: The metro service runs daily from 5 am to 12 am, with an end-to-end travel time of 82 minutes. The frequency has seen adjustments to optimize operations, catering to varying passenger traffic during peak and off-peak hours. Safety Measures: Safety measures include multiple emergency exits at each station, flame-retardant materials, earthquake-resistant construction, and tunnel cross-passages for passenger evacuation in case of emergencies. Fare Collection: The end-to-end fare on the Purple Line is ₹60, with a 5% discount for commuters using smart cards. As of 2016, smart card usage accounted for 37.59% of commuters. Future Developments: With ongoing expansions and future plans, Bengaluru’s Namma Metro Purple Line continues to evolve, contributing to the city’s efficient and extensive public transportation system.