4 ms·

The difference is we are building tunnels for many decades and making them smaller, reusing the ground material are not ground breaking ideas.

rusticpenn 7y ago
The ground breaking part is not the tunnel but the vehicles. Its extremely dangerous to use ICE vehicles in long tunnels without complex ventilation schemes. Electric vehicles solve this issue.
- asjw 7y ago
  Electric cars have tires, that produce a lot of the dangerous micro plastic
  - rusticpenn 7y ago
    Tires seem to be completly another beast. Apparently, most of the pollution from tires are usually stuck to the roads and are washed periodically with water and soap [1]. I am not sure how much tires contribute to air pollution. https://nmbu.brage.unit.no/nmbu-xmlui/bitstream/handle/11250/2612289/MASTEROPPGAVE%20Ninni%20og%20Jon%20Petter%202019.pdf?sequence=1&isAllowed=y https://nmbu.brage.unit.no/nmbu-xmlui/bitstream/handle/11250...
    - peller 7y ago
      Sounds like it's more so water pollution where tires are bad: > Driving is not just an air pollution and climate change problem — turns out, it just might be the largest contributor of microplastics in California coastal waters. [...] Rainfall washes more than 7 trillion pieces of microplastics, much of it tire particles left behind on streets, into San Francisco Bay each year — an amount 300 times greater than what comes from microfibers washing off polyester clothes, microbeads from beauty products and the many other plastics washing down our sinks and sewers. https://www.latimes.com/environment/story/2019-10-02/california-microplastics-ocean-study https://www.latimes.com/environment/story/2019-10-02/califor...
      - Tempest1981 7y ago
        Interesting: "Rubber is also considered plastic, both natural (isoprene) and synthetic (styrene butadiene)."
- jeltz 7y ago
  If the innovation is changes in the society why can't every other tunnel company just copy him and do it better?
  - nexuist 7y ago
    If it was that easy there would only be one company in the world, and it would do everything. The issue with competition, you see, is that someone has to lose, and it sure as hell isn't going to be the winner - until it is.
- progfix 7y ago
  You need complex ventilation anyway. Imagine a fire breaks out.
  - rusticpenn 7y ago
    True, however that requirements are more relaxed. The invention of electric train removed most of the problems with coal based (and other vehicles and helped in creation of subways).I think the movement to electric will create the same oppurtunity for cars.
- aguyfromnb 7y ago
  >The ground breaking part is not the tunnel but the vehicles. Underground LRT (aka "a subway") are electric vehicles that travel in tunnels. In what sense is replacing a subway with an electric car that runs on rails "ground-breaking"?
  - rusticpenn 7y ago
    The initial idea was to have tunnels for cars, however since most cars on roads are ICEs, the cars on rails was brought about as an alternative. In an ideal world with 100% electric vehicles, the complete transportation can be moved underground and the cities can appear as natural as possible.

rusticpenn 7y ago

The ground breaking part is not the tunnel but the vehicles. Its extremely dangerous to use ICE vehicles in long tunnels without complex ventilation schemes. Electric vehicles solve this issue.

asjw 7y ago
Electric cars have tires, that produce a lot of the dangerous micro plastic
- rusticpenn 7y ago
  Tires seem to be completly another beast. Apparently, most of the pollution from tires are usually stuck to the roads and are washed periodically with water and soap [1]. I am not sure how much tires contribute to air pollution. https://nmbu.brage.unit.no/nmbu-xmlui/bitstream/handle/11250/2612289/MASTEROPPGAVE%20Ninni%20og%20Jon%20Petter%202019.pdf?sequence=1&isAllowed=y https://nmbu.brage.unit.no/nmbu-xmlui/bitstream/handle/11250...
  - peller 7y ago
    Sounds like it's more so water pollution where tires are bad: > Driving is not just an air pollution and climate change problem — turns out, it just might be the largest contributor of microplastics in California coastal waters. [...] Rainfall washes more than 7 trillion pieces of microplastics, much of it tire particles left behind on streets, into San Francisco Bay each year — an amount 300 times greater than what comes from microfibers washing off polyester clothes, microbeads from beauty products and the many other plastics washing down our sinks and sewers. https://www.latimes.com/environment/story/2019-10-02/california-microplastics-ocean-study https://www.latimes.com/environment/story/2019-10-02/califor...
    - Tempest1981 7y ago
      Interesting: "Rubber is also considered plastic, both natural (isoprene) and synthetic (styrene butadiene)."
jeltz 7y ago
If the innovation is changes in the society why can't every other tunnel company just copy him and do it better?
- nexuist 7y ago
  If it was that easy there would only be one company in the world, and it would do everything. The issue with competition, you see, is that someone has to lose, and it sure as hell isn't going to be the winner - until it is.
progfix 7y ago
You need complex ventilation anyway. Imagine a fire breaks out.
- rusticpenn 7y ago
  True, however that requirements are more relaxed. The invention of electric train removed most of the problems with coal based (and other vehicles and helped in creation of subways).I think the movement to electric will create the same oppurtunity for cars.
aguyfromnb 7y ago
>The ground breaking part is not the tunnel but the vehicles. Underground LRT (aka "a subway") are electric vehicles that travel in tunnels. In what sense is replacing a subway with an electric car that runs on rails "ground-breaking"?
- rusticpenn 7y ago
  The initial idea was to have tunnels for cars, however since most cars on roads are ICEs, the cars on rails was brought about as an alternative. In an ideal world with 100% electric vehicles, the complete transportation can be moved underground and the cities can appear as natural as possible.