A Concept Plan for a Full-Scale Kochi Metro Rail Network

The Kochi Metro is on a roll. Its been a few years since the first phase of its line from Aluva to Thrippunithura has been fully operational, and construction for Phase 2 line from Kaloor (JLN Station) to Infopark had commenced. The Kochi Metro Rail Corporation (KMRL) is quite on track to open the first four stations of the line by May 2026. The extension of the first line from Aluva to the Cochin International Airport (CIAL) is well underway. KMRL has also achieved a breakthrough one lakh ridership per day on an average and with it an operating profit of Rs.33 crore in the year 2024-25. That’s three years of consecutive operating profits! Its subsidiary the Water Metro has won universal accolades with the model now being planned to be replicated across the country. Metro feeder buses, despite the low frequencies and high fares are a runaway success as well. The Kochi Metro has today been recognized as one of the country’s premier transportation agencies with even its naysayers grudgingly accepting its value.

It is now imperative that this momentum needs to be carried over into expanding and building a fully fledged public transit system for the city of Ernakulam – Kochi. So, here I am imagining a public transit network for Kochi by expanding and adding on to the existing network (if you can call it that). This network would be what the city would need to make sure it is ready for its next few decades of growth. The Kochi Metro will have three Metro Rail lines, one LRT line and three Tram lines under this plan. Please note that I have left the Water Metro out of this plan.

1. Kochi Metro Connectivity to the Kochi Airport (CIAL)
2. Developing Angamaly as Kochi’s northern transit gateway
3. The “Switch to Metro” (STM) project and campaign
4. Extending the Pink line to Karimugal via Brahmamangalam and to Aroor via Thoppumpady
5. A Light Rail Transit (LRT) Corridor along the length of the Bypass from Aroor to Varapuzha
6. A new Ernakulam South – Thevara – Thrippunithura – Infopark – Kochi Airport – Angamaly Metro line
7. Three tram lines: Ernakulam North to South via Menaka; Kaloor to Shipyard Quarters via Kadavanthra, The Fort Kochi circular tram line (detailed in another post).

Kochi has developed into a linear city (like Mumbai) unlike Trivandrum which is a circular city (like Bangalore) which plays a key part in designing their transit networks. Trivandrum also works on a few clearly defined transit routes and destinations (Thampanoor, Secretariat, Bypass, Technopark, etc) while Kochi has fewer such “hotspots” and works under a more “distributed” population model. This is due to multiple factors including its larger area, more large transit stops (two major and one minor railway station), far more destinations of interest, and an airport way outside of town. While Trivandrum focuses on bringing people to its “hotspots”. Kochi focuses on moving them around the city and lately to the Infopark and to the Airport. This is where trams also make more sense for Kochi.

NOTE: Most of this is fantasy. Nobody in Kerala actually talks about public transport anymore. We are only building massive highways, greenfield expressways, bypasses and three-lane elevated roads over all of these. There is no environmental activism, no protests, everyone seems to be happy that they all get to buy cars and drive with all their might. There is not even a single major modern railway project (HSR, SHSR, RRTS, URR or even Indian Railways) that was approved in the past decade while I can count atleast 2000 kilometers of new highways built in Kerala. On that depressing note, let us return to the dreamland where public transport is given priority over cars.

I have created a helpful map on how this line would look like, akin to the imaginary maps and plans for the Trivandrum Metro and Bangalore Metro that I had created earlier.

The Imaginary fully-fledged Kochi Metro Rail Map

Let us have a look at each of these lines, concepts and proposals in detail.

The Kochi Metro line from Aluva to the Airport and Angamaly

It was during November 2023 that KMRCL finally announced a plan to extend the Kochi Metro line from Aluva until Cochin International Airport. While it is a no-brainer that airport connectivity should’ve been part of the very first Kochi Metro plan, better late than never, I guess. On this momentous occasion, please allow me to share some humble plans that in my opinion would be beneficial for Kochi Metro.

KMRCL is apparently considering between four different alignments for the Kochi Metro to reach the airport and from there onwards to Angamaly. In my opinion the most beneficial for all parties involved would be if the Kochi Metro’s airport line alignment were to go via Akapparambu and Nayathodu to terminate at Angamaly. From Aluva the line could continue on along the median of the National Highway (NH66) until Kariyad/Akapparambu. At this point it leaves the national highway and would soon go underground (presumably near the golf course) and continue onwards towards the Airport. There could be two underground stations, one at the proposed CIAL Railway Station of the Indian Railways and then at the Airport Metro station itself where it would be located directly under the terminals. From there on the line could turn left and go back overground to continue onwards via Nedumbassery town and Nayathode to reach MC Road near Kavarapparambu to terminate at Angamaly.

There is an opinion that the alignment of the airport line should be such that it turns back from the Airport to get back to the National Highway to ensure it connects Angamaly Railway Station. Valid suggestion but this would unnecessarily complicate the operations of the line. Since the CIAL Railway Station (that has already started construction) is slated to be connected with the Metro and as it looks like most major trains will stop there, I think that solves the question of railway connectivity at to the Airport.

The stations could be at Paravur Jn (Thottakattukara), Desom, Athani, Kariyad, CIAL Railway Station, CIAL Airport, Nedumbasserry town, Nayathode, Kavarapparambu/LF Hospital and the Angamaly Mobility Hub Terminus (explained below).

Utilising the Kochi Metro Airport Line

With this system, the Kochi Metro Airport line would serve passengers towards Ernakulam/Kochi proper, passengers who would need to connect to trains to travel northwards towards Thrissur or southwards towards Kottayam and Alappuzha sides and the rest of central Kerala, and also to people who could take buses from Angamaly to travel southwards to Muvattupuzha, Idukki district, and the eastern ranges of Ernakulam (Muvattupuzha, Kothamangalam) and Kottayam (Pala, etc.) and all of Idukki district where there is no rail connectivity yet. Also, it would be doubly beneficial if Indian Railways could build a halt station at Nedumbassery to give the proposed Sabari railway line, which has now been revived, access to the Kochi Metro and Airport.

KMRCL hopes to integrate Metro and Airport operations under the “Common Mobility Plan” being prepared for Ernakulam/Kochi, so that passengers can check-in their luggage at Metro stations itself and then directly proceed to security at the airport. This is a brilliant plan that is common in Europe and will probably be the first in India.

The airport integration plan is great, but what Kochi Metro really needs to do is integrate bus services with itself too. Things like common ticketing, common-use transit cards, dedicated bus bays at Metro stations with buses departing on cyclic timetables, and so on are often suggested and well-known. However, there’s something special required in the case of the airport line, which is Angamaly itself.

Angamaly

Angamaly has always been very important in the Ernakulam-Kochi scheme of things. Angamaly is the northern gateway to the city, and has been among the most important in the transportation matters of the state for being the northern junction point of the MC Road and the National Highway (NH-66). It hence is a major transit station and has a massive KSRTC bus station right in the centre of town. This is where Kochi Metro could come in and plan its integration.

The opportunity here is to develop an “Angamaly Mobility Hub” on the model of the Vyttila Mobility Hub. The Angamaly Kochi Metro rail terminal should be planned in such a way that the KSRTC bus station is integrated into the same building in the model of a transit hub or mobility hub. Unlike Vyttila, Angamaly is more of a transit stop than a station, meaning that most buses pass through it rather than have their terminal point there. This means that the bus station doesn’t require much dedicated space for bus parking and the building area can be optimised for transit alone. The KSRTC station with the bus stop can occupy the ground floor and the upper floors of the building can be for the Metro station with trains arriving and departing from the top floor.

This seamless integration of bus and Metro transit will cater to thousands of passengers. These include all people heading into Ernakulam from Thrissur, Irinjalakkuda, Chalakudy, etc., on KSRTC buses both local and long-distance. This includes daily commuters, passengers to the Kochi airport from northern Kerala who currently have no means of public transport except for a couple of stray KSRTC buses, daily commuters to Kochi from around the Angamaly urban area, etc. This strategy is beneficial for KSRTC as well who beyond the obvious increase in passenger numbers can also introduce better efficient bus services like Thrissur-Angamaly “Metro chain” services.

“Switch to Metro”

People will still drive their cars not matter how perfect the integration of public transport might be. This is why the Angamaly Mobility Hub would also be an opportunity to attract them as well. Despite what some people think, there are quite many people coming in from Thrissur side who park their cars somewhere around the Aluva Metro station and take the Metro train into the city. This presents an opportunity for the Kochi Metro. I call it the “Switch to Metro” (STM) campaign project.

It is quite simple in concept. All it is is just multi-level car parking complex (MLCP) integrated with the Metro station for commuters to park their cars and seamlessly connect to the Metro.

For instance, the Angamaly parking complex could have 4 stories for 250 cars each and the ground floor for two-wheeler parking and an outside lot for bus parking. A walkway (like the one at Edappally Lulu Mall) will connect the MLCP directly to the station concourse. A separate ticketing booth and turnstiles will serve those utilising the MLCP. Parking charges if any may be deducted directly from Metro cards (or Fast Tags) while for paper tickets the payment can be made at the exit of the MLCP.

The same concept may be replicated at Thrippunithura too but building a STM MLCP there would probably require to extend the Metro line by another 200 meters with a new station dedicated for it. This would benefit people from all Kottayam and Idukki districts who travel to Ernakulam, especially daily and frequent commuters along the route from Ernakulam to Vaikom. The “Switch to Metro” project if implemented in earnest at all terminal stations of Kochi Metro could go a long way towards reducing car traffic from outstation vehicles within Ernakulam/Kochi city limits.

Extending the Pink line to Aroor and Karimugal

From JLR via North – Maharajas – MG Road – Thevara – Island – Thoppumpady – Palluruthy – Edakochi – Aroor | From Infopark – Brahmapuram – Karimugal

The Pink line aka the JLR – Infopark line is currently under construction. While without doubt this line will absolutely change the transit habits of Ernakulam by connecting the city’s IT hub, it would still not live up to its potential if it remains as a small 11 km branch line. The line should be extended all the way from the Stadium where it currently is planed to terminate to Aroor via Ernakulam and Kochi, thereby connecting areas like Thevara and Thoppumpady and the entire Edakochi area with the Metro. On the other end, it should also be extended to Karimugal from Infopark via Brahmapuram. Aroor has a good chance to turn out to be the southern suburb of Kochi (though it doesn’t even lie in the same district).

The extended pink line will run alongside the current Aqua line until Maharajas college from where it will continue straight along MG Road. It will hence bypass Ernakulam South but will have a station at Jos Junction to compensate. Going past Ravipuram and the Shipyard the line will cross over to Island and then to Thoppumpady over its own Venduruthy and Harbour bridges, From Thoppumpady where it will share a terminal with the Fort Kochi tram, the Kochi Pink Metro line could turn left and run via Palluruthy and Edakochi to across another bridge to reach Aroor where it will join the LRT. From Infopark, the pink line should be extended further south-east, reaching Karimugal via Brahmapuram and Pallimugal. Though this seems excessive, this extension could connect the entire Puthenkurish – Pallikara region with the Metro, which is essential for the future, extending its reach as far as Aikaranad and Kizhakkambalam, and even capturing traffic from the Kolenchery – Muvattupuzha side.

Total Length: Around 37 km. Stations: Karimugal, Pallimugal, FACT Gate, Brahmapuram, Infopark 2, Infopark 1, KINFRA, Chittetukara, Cochin SEZ, Kakkanad, Padamughal, Vazhakkala, Chembumukku, Pipeline, Palarivattom, JLN Stadium, Kaloor, Town Hall (North), MG Road, Maharajas, Jos Junction, Ravipuram, Shipyard, Naval Base, Island, Thoppumpady, Valummel, Pallururthy, Nambiyakulam, Perumpadappu, Aquinas, Edakochi, Neverland, Aroor Industry, Aroor, Arookutty.

The Kochi Bypass LRT Line (Yellow)

Aroor – Kumbalam – Nettoor – Kundannoor/Maradu – Vyttila – Bypass – Edappally – AIMS – Cheranalloor – Varapuzha

Many people even today are of the opinion that the first Kochi Metro line should’ve been built just followed the Ernakulam bypass from Aroor to Aluva, and then maybe to the Airport. I don’t think that’s a bad take. All the areas of the bypass are booming with a lot of commercial activity including huge malls, hotels and hospitals, and a public transit line catering to all of it is only common sense. However, would a heavy Metro rail line be the best public transit solution for the bypass?

The Ernakulam/Kochi bypass is a mostly straight-shot four-lane road that runs from Aroor in the south to Edappally with heavy continuous mixed-development on both sides. It has only a few concentrated population clusters like Maradu and Vyttila with every other stretch on the road being a catchment area. The straight road, space being at a premium and the expected patronage being more “hop-on and hop-off” would make designing a ground-level system more sense than a heavy overhead Metro line with massive stations. This is here a LRT, or a Light Rail Transit system would come is in a preferred solution for the Ernakulam/Kochi bypass.

What is a LRT? It can be considered to be a step above a tram, but not quite a Metro. While it can run on the roads like a tram, a LRT prefers to be fully grade-separated. LRTs are in many ways the best of all worlds. It can carry more people than a tram, can run faster and longer distances like a Metro, and closer with leaner headway (every few minutes) like a BRTS and is greener and more efficient than all three. A LRT train looks like a tram that has “grown up”, with a slighter bigger profile and more carrying capacity (This is why LRTs are sometimes called Metro lite). The best thing is that LRT stations can be like bus stops on the roadsides, eliminating the need for massive stations and construction. For a linear city and system like the Kochi Bypass a LRT would be the best bet.

The Kochi Bypass LRT can be designed to run in a straight line from Aroor in the south to Varapuzha in the north via Maradu, Vyttila, Edappally, Amrita Hospital (AIIMS) and Cheranalloor. There will be two tracks (one up, one down) on the median of the bypass. Stations (stops) would be placed every few kilometers. Stations at Vyttila and Edappally will need to be placed underground though with integrations to all other modes of transport. LRT vehicles look like trams five to seven section long. It could reach up to the entrance of hosptals like Lakeshore and AIIMS making access easy.

A LRT also makes sense from an infrastructure point of view since NHAI has now proposed building an elevated road above the current bypass from Aroor to Edappally. Building a Metro line along with this flyover will unnecessarily complicate things along with interchanges at Vyttila and Edappally. With the through traffic mostly shifting upstairs, road below can be redesigned to accommodate the LRT with it on the centre (median) and the current road merged with the service roads to become a two-lane road on either side. Crossings and junctions should be managed with signals and underpasses wherever possible.

• Equipment: Possibly Alstom Citadis 302 or 402 ( 5 to 7 sections, fully low-floor).
• Headway: Every two minutes during peak hours and every five minutes during non-peak hours.
• Stations: 28 on-grade, 3 underground (Maradu, Vyttila, Edappally)
• Termini: Aroor Railway, Varapuzha LRT Terminus.

The New Green Line (Ernakulam South to Airport)

Ernakulam South – Shipyard – Thevara – Nettoor – Kundannoor – Maradu – Poonithura – Thrippunithura – Seaport Airport – Kakkanad – Thrikkakara – HMT – Muttom – Aluva – Airport – Angamaly. | Branch: Infopark – Brahmamangalam – Karimugal.

It might seem that this was rather a line of convenience drawn on a Google Map, but trust me, a lot of thought has gone into this alignment. I would observe that the shortcoming of many initial Metro alignment plans in the country were that they were planned to duplicate existing popular bus routes (including Kochi and Bangalore) assuming traffic will always flow on existing corridors. This thought itself is a major flaw. Bus lines exist the way they are because the roads exist that way. This proposed “green line” alignment does that. Forcing Metro lines to follow the roads defeats their purpose. Metros are not meant to replace buses but rather to connect catchment areas in a city via the shortest line.

This route does not exist on Kochi’s public transport map in any format. This is a three-point line, in the sense that it connects three major points with each other and the rest of the route in the shortest way. They are the core city of “Ernakulam”, the satellite of Thrippunithura and the new-generation Infopark – Kakkanad region. This line also connects the tony areas of Panampilli Nagar and Kochu Kadavanthra, and also Thevara and Maradu with the eastern parts of Ernakulam. It will also connect all the “newer” eastern areas of Kochi, namely Airport Seaport, Kakkanad, Infopark, Thrikkakara, HMT, etc. This is very important to prevent these parts from turning into Bangalore Outer Ring Road or Whitefield.

The alignemnt of my proposed Green line starts undergound at Ernakulam South, probably located under the current Metro station, probably even a bit closer to the railway station so that passengers can access both stations from a central point. It then continues under Panampilli Nagar, and Thevara to reach Nettoor where it goes overground. It then crosses the Bypass at Kundannoor to reach Poonithura and then onwards to Thrippunithura with a station at the town. The alignment of the line then brings it into the existing Thrippunithura Metro station sharing its platforms with the Aqua line. It then branches away and runs all the way along the Airport – Seaport road to reach Kakkanad. The main alignment of the Green line then moves onward along Thrikkakara and the eastern side of CUSAT campus and HMT to reach Kalamasserry where it joins the existing Aqua line again and follows its same route until Angamaly via the Airport.

The green line also has a branch, of course! The Green branch line will diverge from the main line at Chittetukara, where it meets the Pink line, sharing its alignment all the way to its end at Karimugal via Infopark. The Green line could hence run three services:

• The full line service between Ernakulam South and Angamaly
• Branch line A runs Ernakulam South – Thevara – Nettoor – Thrippunithura – Infopark – Karimugal
• Branch line B run between Karimugal – Infopark – Kalamassery – Aluva – Airport – Angamaly.

This way it can also run as a feeder line from Thrippunithra to Infopark, with dedicated services between Thrippunithura and Infopark in the mornings and evenings. On its other branch, the Green line can also run a direct line between Infopark and the airport. I doubt it if any IT park in India has a direct Metro connection to the airport?

Constructing the line will be a challenge. It has to go underground after Nettoor until Ernakulam South for around 4 kilometers and 5 stations need to be built underground including the terminus at Ernakulam South. As hard as it is to build, the benefits that this line will bring will be immense. It has the power to single-handedly change Kochi. I’ve always said that this was the line that should’ve been built first.

An Investment for the Future

By this time I think a lot many people have finally realised what a Metro system actually is meant to. It is not really a way intended to “reduce” traffic, because with the theory of Induced Demand, any vehicles removed by the Metro will be instantly replaced by others. The only way forward is to build more transit of all modes and integrate them with each other and supported by associated structures like technology integrated, simplified ticketing, walkable neighbourhoods and footpaths and ease of access, to blunt induced demand as much as possible. In addition, a widespread transit system also creates a habit within people to take transit instead of private transportation, in which it is a long-term investment in reducing car dependency. This is especially important for Kerala in general and Kochi in particular is facing a massive surge in private car ownership.

The twin cities of Ernakulam – Kochi is the 17th largest urban agglomeration in the country with a population of 2.1 million as of the 2011 census, though it would probably thrice that size now. The city has seen explosive growth in the past decade and is struggling to breathe, choking under the fumes of a million vehicles in the Indian state with the highest car ownership. The question today is not whether Kerala’s financial engine needs a public transport system, but it is only how much of it is needed. I think the plan specified here should be the bare minimum that the city needs. We all have examples of what happens to cities that do not have adequate public transport facilities available in front of us. Though most of this is fantasy, hopefully there should be plans to ensure that the network map expands rapidly.

Also, a token of appreciation for the Kochi Metro Rail Corporation for having developed the clean, professional, efficient, friendly and fast image of itself that people look up to. It is imperative that the state and city get modern public transportation systems that are fast, clean, comfortable and professional. Rickety, 20-year old KSRTC buses, hooliganistic private buses and unreliable and crumbling Indian Railways’ services simply does not cut it anymore with all of their unprofessional and entitled staff does not cut it anymore. This is primarily the reason why Kerala should develop its own public transit network one that it owns and operates according to the needs and tastes of the state and people.