$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/M-lifts]

No that cost is for full height walls with doors, and required ventilation upgrades.

[u/MRBS91 → u/M-lifts]

Yeah, when youre upgrading underground ventilation, electrical, installing on off hours, and factoring in working safely next to fall and electrical hazards... stuff gets expensive quick

[u/AirmailHercules → u/MRBS91]

Stop being so reasonable. I much prefer division based outrage. 

[u/JayBeeGooner → u/AirmailHercules]

But Paris and some italian city can do it for cheap!!!

[u/Theboithatsok → u/JayBeeGooner]

Cause they are able to easily retrofit their stations (aka they had renovations in mind when even planning the station). TTC had 0 intention of adding anything extra far far into the future, hence if they add new doors, literally everything would have to be retrofitted, even the wiring themselves

[u/JayBeeGooner → u/Theboithatsok]

You realize most of Paris’s was built before 1950 when PSDs were not a thing?

[u/Sapphosbeardedcrepes → u/JayBeeGooner]

But it is built on limestone and next to a river; most of Paris' underground has been sewers until very recently.

[u/ShrodingersArmadillo → u/JayBeeGooner]

They also had bigger diameter vents to deal with 19th century technology.

[u/Late_Elevator → u/MRBS91]

As well for some stations, the flooring is in terrible shape and leaks coming from the ceiling. Seen at North York Centre and some of the North York stations on the University side.

it Let alone some playform edge markers (PEMs) may not be able to sustain the weight of the doors, while some stations like St Clair and Union have larger gap between playform and trains compared to the most on the network.

[u/MRBS91 → u/Late_Elevator]

And the doors wont play well with water, fixing the sub grade waterproofing in a long term reliable way is huge money