Compare this cost with the cost of driving a car. The total cost of ownership of a car works is anywhere between Rs 8-Rs 15 per km based on the make and model of the car, considering financing, depreciation, maintenance, fuel, registration, tolls etc.
Even if you just consider fuel and tolls alone for an argument's sake, it would work out to at least Rs 4-Rs 6 per km. Compare this to the proposed 2.75 Rs per km on Semi HSR. If you consider this is an elite project, then all car owning households who afford more should also be considered as elites in your definition, which means roughly 25-30% of all households in Kerala.
There are so many myths being spread around about what can be done with automatic signalling and blah blah that can improve the present system.
1. Automatic Signalling can dramatically increase capacity in sections where all/most trains run at the same speed, same stop pattern etc. In such cases, automatic signalling can significantly reduce headway between trains and increase capacity. It works very well in the Chennai and Mumbai sub-urban rail network and there are dedicated tracks. In such stretche, headways between trains can be consistenly brought down to as low as 2-3 minutes during peak hour and 5-10 minutes during off peak hours. However, in stretches like Delhi-Mathura, Chennai-Jolarppettai etc which also have automated signalling and dedicated 3rd and 4th line is some stretches, the same problem of multiple types of trains using the same track persists and so the headway is reduced to just about 10-15 minutes during the peak hour, which is not achieved consistenly throughout the day due to capacity constraints.
Whereas in our state, we have passenger trains/MEMUs/goods trains/express trains/weeklies/biweeklies/superfasts/Rajdhanis and Goods trains all sharing the same track. All these trains have different stoppage patterns and different acceleration/decceleration capabilities (esp: MEMU vs Goods trains vs a conventional loco hauled express train). In such a scenario, automated block signalling will not bring any dramatic improvement in capacity/speed. If automated signalling be of any use, we should have a dedicated 3rd and 4th to line to reduce the mix of train types using the same track. The Silver Line project is the proposed 3rd and 4th line.
2. Our lines are super saturated and doubling of Kottayam and Alappuzha (which I read has been shelved) has to be completed at the earliest. But even after doubling, we woul still need a dedicated third/fourth rail to better operate the diverse mix of trains in our network. Acquiring land along the exisiting Right of Way from TVC to SRR is very difficult. This route was initially in MG gauge which was later converted to BG hence there are many curves which limit the MPS to just 110kmph (in some stretches between TVC-QLN and QLN-KYJ) and 70-80 kmph in remaining stretches.
We need a 3rd and 4th rail, but when we build one, why should we go for such very low speed capabilities? Moreover, we are not shooting for a 300kmph type HSR but a 160-200 kmph semi HSR.
The Silver line project is the proposed 3rd/4th line and not some fancy project.
3. The total cost of NH 4 laning in Kerala is Rs 44,000 crore. The cost of this project is Rs 66,000 crore. This is not some super expensive project compared to the ones that are being undertaken now. The total LA required for this project is around 1200 hectares compared to 2600 hectares required for NH widening, to give a comparison.
4. We all can be skeptical about when the project will be implemented and rightly so considering the nature of infra projects in Kerala. But that does not take away the importance of this project how this is the only 'less unviable' options we have for a sustainable transportation for the future. Our personal vehicle numbers are booming and there is very little room to add new massive road projects in our state, towns and cities. 12 lives are lost and 120 injured everyday in Kerala on an average.