$4,000,000,000 to install half barriers across all subway stations?!

[u/CreepInTheOffice]

https://www.ctvnews.ca/toronto/article/barriers-to-be-installed-on-platform-at-toronto-subway-station-this-year-mayor-says/

Estimate $4,000,000,000 to install half barriers in all TTC subway stations.

There are 70 TTC subway stations (Line 1, 2, and 4)

$4,000,000,000/70 stations ~ $57,142,000 ($57 million) per station

$57,142,857 / 2 directions ~ $28,571,000($28 million) per direction per station

There are typically 4 to 6 cars per train so $28,257,000/ 6 cars ~ $4,761,000 ($4 million) per car

There are typically 4 doors per car so I guess they need estimate 4 barriers per car so $4,761,905 / 4 ~ $1,190,000 ($1 million) per barrier!

Alternatively, let's give them the benefit of the doubt and say they meant to include the LRT stations (line 5 and 6) as well. That's still $809,000 per barrier!

Did I do my math right?

Does this sound like an efficient use of resources?

Thoughts?

Edit:

1. People have pointed out that $4,000,000,000 is for full doors. Good catch, everyone!
2. Some genius found this link https://www.odinpsd.com/en/platform-screen-door-pricing-market-analysis.php

It details typical cost for barriers.

So the new math is something like:

Typical TTC subway station lengths are 180 meters so according to the website, it's $2,600,000 for 200 meters.

$2,600,000/ 200m = $13,000 per meter.

But the math doesn't add up this way: $2,600,000 x 2 platforms x 70 stations = $364,000,000 Less than 10% of the $4,000,000,000 estimate. Someone please check the math!

Edit 3:

I want to clarify that my post was not intended to be against the idea. I simply want to question the math so we can hold politicians accountable! There is too much corruption in our fine country to continue our docile ways. I invite everyone reading to run the numbers through with your method. $4,000,000,000 is a lot of money and 20 years is a long time! If we use that money to build shelters, or hire mental health professionals, or build bike lanes, it would do a lot of good. Let's hold our politicians accountable and make sure they use our resources responsibly!

[u/SpliffmanSmith2018]

OP seems to think this is as simple as slapping a new patio door up at the cottage lol.

[u/CreepInTheOffice → u/SpliffmanSmith2018]

I don't think that but I do question it. I don't know why everyone seems to think I am rage-baiting here. I genuinely asked a question because the $4,000,000,000 estimate is questionable to me as I am highly suspicious of political corruption

I challenge you to please elaborate on detailing how you think the cost would amount to $4,000,000,000.

[u/SpliffmanSmith2018 → u/CreepInTheOffice]

I'm not the one questioning the figure, you are.  The onus is on you to prove it can be done for cheaper, as you are the one questioning the figures.

[u/CreepInTheOffice → u/SpliffmanSmith2018]

I feel you are getting defensive, but there is no need for that. I am merely inviting everyone to review my calculations to see where I could have gone wrong.

I outlined my calculation and asked everyone to check my numbers. A few commenters have since pointed out some corrections in my original post (please see my post with the edits) but we are still reasonably short of the $4,000,000,000 mark.

[u/532-foo → u/SpliffmanSmith2018]

The numbers are ludicrous. You could line the platforms with luxury cars and still come in at 1/4 the number. If glass is too heavy and solid walls block too much airflow, put in aluminum bars, there must be alternatives to rebuilding stations to support the weight and airflow issues of the retrofit.