Project at a glance

Name of the Project Semi High Speed Rail Project from Thiruvananthapuram to Kasaragod (Named asSilverLine).
Executing Company SPV of Kerala Rail Development Corporation Limited (KRail)
Project Length 529.45 kms
Gauge Standard Gauge of 1435 mm
Operational Speed 200 kmph
Travel Time 4 hrs (approx.)
Construction Period 2020-25 (Five Years)
FIRR 5.84% over 30 years and 8.49% over 50 years
EIRR 24.04% over 50 years
Type of Train EMU type train set-9 cars Extendable to 12/15 cars
Seating 2+2 (Business), 3+2 (Standard) 675 Passengers in 9 cars train
Ridership 79,934 in 2025-26
Power Supply From KSEBL through solar & other renewable energy.
Signal &Comm. ETCS Level 2 with LTE
Stations 11 including Kochi Airport
Project Cost on Completion Rs 63,940.67 Crores

SALIENT FEATURES

  1. Structure of Route Length:
    Total Length 529.45 Kms. (Centre line to Centre line of Stations)
    Structure
    a) Viaduct 88.41 Kms
    b) Tunnel 11.52 Kms
    c) Cutting 101.73 kms
    d) Bank 292.72 Kms
    e) Cut & Cover 24.78 Kms
    f) Bridges 12.99 Kms
    Total Route Length 532.185 Kms. (End to End of the route length)
  2. Station names with chainage and inter distance:
    Sl.No. Name of station Chainage(KM) Inter-station distance (KM) Elevated / At grade
    1 Thiruvananthapuram 0 1100 Elevated
    2 Kollam 55358 55358 At grade
    3 Chengannur 102900 47543 At grade
    4 Kottayam 136108 33208 At grade
    5 Ernakulam 195308 59200 Elevated
    6 Kochi Airport Station 212305 16998 At grade
    7 Thrissur 259118 46813 Elevated
    8 Tirur 320565 61447 At grade
    9 Kozhikode 357827 37262 Underground
    10 Kannur 446095 89273 At grade
    11 Kasaragod 529450 83515 At grade
  3. Traffic Forecast:Thiruvananthapuram – Kasaragod: Ridership over different horizon years.
    Estimated Ridership Forecast for Different Horizon Years for Thiruvananthapuram – Kasaragod

    Parameters 2025-26 2029-30 2041-42 2052-53
    Ridership 79,934 94,672 1,32,944 1,58,946
    Passenger. km 58,35,182 69,11,056 97,04,912 1,16,03,058
    Average Trip Length (km) 200 200 200 200
  4. Civil Engineering:

    4.1   Underground Structures

    4.2   Super structure for bridges, Viaducts etc.

    4.3   Viaduct

    4.4   Bank Top width

    4.5 Cutting bottom width

    NATM      method      of      construction.       Cross
    Sectional Area 80 m².

    Either box Girder or double ‘U’ type girder. Generally, 30m in length.

    Supported on single columns generally

    12 m

    12m

    4.6   Track Structure

    1. Mostly ballasted Track for main line except over viaducts & Tunnelswhere ballastless track is used.
    1. Ballasted Track in Depot except washing line and inspection bays.

    4.7   Min horizontal Curve Radius

    1,850 m

    4.8   Min Vertical Curve Radius

    17,500m

    4.9   Max Cant

    160mm

    4.10 Permissible Cant Deficiency
    (desirable)

    100mm

    4.11 Permissible Cant Deficiency   (maximum)

    100mm

    4.12 Max Gradient

    1 in 60

    4.13 Distance between Track Centres

    4.5 m

    4.14 Car Width

    3.4 m

    4.15 Max. Axle Load of car

    16-17 Ton (UIC Loading Standards)

    4.16 Width of Track Formation

    12 m

    4.17 Tunnel Cross Section  (Standard
    DoubleTrack)

    80 m²

  5. Speed:
    • Operating Speed: 200 KMPH
    • Maximum Design Speed: 220 KMPH (structures designed for 250 kmph)
  6. Train Operation:The train operation plan has been taken for headway of 15, 15,10 and 10 minutes in the year 2025-26, 2029-30, 2040-41 & 2052-53 respectively during the peak period.
  7. Traction Power Supply
    1. Traction feeding system :     2X25    KV       Auto    Transformer     Type    feeding
    2. SystemCurrent Collection: Over Head Contact System (CCS)
    3. Power Requirements:

      Year

      2025-26

      2032-33

      2042-43

      2052-53

      Power demand
      (MVA)

      104

      119

      158

      184

      Energy consumptio
      (million units)

      279

      321

      427

      497

  8. Rolling Stock:To start with, 9 car Train with the capacity of 9 car is 675 passengers. This train length can be increased to 12/15 cars in future with capacity of 900/1125 passengers respectively.
    1. Train CompositionType of Train: EMU with 9 cars extended as 12/15 cars
      Train Carrying Capacity: For 9 cars, 675 passengers
    2. Train Length (in meter) incl. auto coupler9 car train – 225 m (approx.)  :15 car train – 375 m (approx.)
    3. Length of Coach          : 25.00 m (average)
    4. Width of Coach            : 3.4 m(maximum)
    5. Height of Coach           : 4.5 m
    6. Axle Load (T) : Maximum Axle load is taken 16 – 17 Ton for Passenger Train, design proposed as per UIC load.
    7. CoachCoach construction : Lightweight equipment and coach body aluminium body
    8. PropulsionTraction circuit & configuration: 3 phase drive system with VVVF Inverter control using IGBT and asynchronous traction motor / PMSM
      Braking system: Electric Regenerative brake with continuous  blending of Electro Pneumatic friction brakes and parking brakes.
  9. Train Control: Continuous automatic train protection with continuous transmission of permanent movement authority (ETCS Level 2 System based on LTE Radio Communication with Train).
  10. Signalling &Communication: ETCS Level -2 (European Train Control System) with LTE. LTE Communication System without loss at speeds up to 350 kmph. Cab Signalling on board system.

    Automatic train control system with ATP, ATO (equivalent to GOA level2) with block length of approximately 8 km. Operation Control Centre (OCC) with Backup Control Centre (BCC) with RBC capable of handling 50 trains (approx.). Mobile Radio System, CCTV Telephone, PAS, PIDS, Clock etc.

  11. Fare Collection: Central Computer System (CCS), Smart Card (EMV   based), Mobile Apps/ Mobile web Application, Station Computer System (SCS), Ticket Office Machine (TOM), Ticket Vending Machine (TVM)/ Self, Service Ticketing KIOSKS, Mobile Ticket Counter (MTC), Portable Processing unit (PPU), Automatic Gate (AG)
  12. Total Estimated Cost Without Taxes (at March 2020 Prices):

    Rs. 49918.70 Crores (inclusive of land).

  13. Total Estimated Cost with all taxes& duties (March 2020 base):

    Rs.55053.83 Crores (inclusive of cost of land).

  14. Estimated completion cost with all taxes, land cost, Escalation & IDC:

    Rs 63940.67 Crores (inclusive of cost of land).

  15. Proposed Fare: Rs. 2.75 per km in Standard Class.