• 0 Posts
  • 30 Comments
Joined 2 years ago
cake
Cake day: June 11th, 2023

help-circle


  • wow, no.

    none of what you said is actually true.

    • “gridlock” happens in non-grid layouts too, the english name is just taken from american road patterns.
    • “show me…” no. YOU made a claim (that local information suffices, which is a VERY bold claim), so it’s on you to prove that local information suffices.
    • roads are absolutely NOT “like wires”; they are like pipes. which is why civil engineers commonly use fluid dynamics to simulate traffic.
    • the rest of what you said is irrelevant to everything else.

    seriously, if you make a claim contradicting both the very premise of the post, and common knowledge on the topic, then at least provide a source for that claim, lr explain WHY you think your claim is true.

    “all the information is there” is not enough information to verify the claim; it’s a wild guess without evidence to back it up.

    if shit where THAT simple, we’d have it figured out 50 years ago… it’s almost like this isn’t the simple problem you desperately want it to be…




  • I’m extremely sceptical about local data being enough to properly guide traffic…

    the problem is that intersections are connected.

    one intersection influences others down the line, wether that is by keeping back too much traffic, thereby unnecessarily restricting flow, or by letting too much traffic flow, thus creating blockages.

    you need a big picture approach, and you need historical data to estimate flow on any given day.

    neither can be done with local data.

    could you (slightly) improve traffic by using local traffic flow to determine signals? probably, sure.

    but in large systems, on metropolitan scales, that will inevitably lead to unforseen consequences that will probably probe impossible to solve with local solutions or will need to be handles by hard coded rules (think something like “on friday this light needs to be green for 30 sec and red for 15 sec, from 8-17h, except on holidays”) which just introduces insane amounts of maintenance…

    source: i used to do analysis on factory shop-floor-planning, which involves simulation of mathematically identical problems.

    things like assembly of parts that are dependant on other parts, all of which have different assembly speeds and locations, thus travel times, throughout the process. it gets incredibly complex, incredibly quickly, but it’s a lot of fun to solve, despite being math heavy! one exercise we did at uni, was re-creating the master’s thesis of my professor, which was about finding the optimal locations for snow plow depots containing road salt for an entire province, so, yeah, traffic analysis is largely the same thing math-wise, with a bit of added complexity due to human behavior.

    i can say, with certainty, that the data of just the local situation at any given node is not sufficient to optimize the entire system.

    you are right about real-time data being important to account for things like construction. that is actually a problem, but has little to do with the local data approach you suggested and can’t be solved by that local data approach either… it’s actually (probably) easier to solve with the big data approach!





  • …okay? that wasn’t the question being asked. did you get confused at some point?

    like, i agree with what you said, just…what does it have to do with the current state of affairs?

    the entire comment chain talks about the past and how capitalism has (supposedly) improved conditions. (since that “improvement” is implied to have already happened by the past tense, we’re talking about the current system. without specifying anything about exactly “who” those conditions have improved for…conveniently)

    so i fail to see the connection to (largely) theoretical improvements to capitalism…


  • 9bananas@lemmy.worldtoFediverse memes@feddit.ukWelcome ex-Redditors!
    link
    fedilink
    English
    arrow-up
    3
    arrow-down
    2
    ·
    5 months ago

    i mean…yeah? kinda? on a technicality?

    Developers that use our General Public Licenses protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License which gives you legal permission to copy, distribute and/or modify the software.

    you assert the first part as fact and then kinda skip over the second part…at least that’s how i read your comment.

    yes, the copyright owner (the creator) “owns” the work…but then immediately uses said ownership to explicitly allow everyone else to do just about anything with it, short of claiming it as one’s own creation.

    you are the best kind of correct, but only that kind.



  • 9bananas@lemmy.worldtoFediverse memes@feddit.ukWelcome ex-Redditors!
    link
    fedilink
    English
    arrow-up
    17
    arrow-down
    4
    ·
    5 months ago

    there’s no contradiction, because the developer does not matter. that’s the entire point of FOSS.

    it could be written by a literal nazi (not that there’s a big difference between brown and red fascists) and it wouldn’t matter one bit.

    that’s the entire beauty of FOSS!

    we ALL own the code.

    if Dessalines ever stops developing it, anyone can take over.

    if Dessalines implements code the community at large doesn’t like, anyone can create a fork and change that specific part and continue from there.

    we can see exactly what the code does, and can create new versions at any point.

    that was always the reason behind decentralized, open source networks:

    nobody can own it.







  • government employees rarely make more than private employees.

    what they are getting mixed up is that some tenured positions get paid about 2x that of a new employee, because there are still some old contracts around that are simply much better than newer one in terms of pay raises over time.

    and those older government contracts frequently include provisions that make these employees contracts impossible to terminate, resulting in some government employees that simply sit out their time on a stupidly inflated salary that nobody can fire…yes, that’s as bad as it sounds, but those contracts are, as far as im aware, no longer being offered anywhere, and the last ones to get those contracts are going to age out into retirement very soon. most are already retired.

    it’s not related to corruption at all either, these contracts used to be standard in many governments all over the world, europe just happened to have some of the cushiest jobs associated with them…

    but it is true that these employees generally contributed a LOT to governmental inefficiencies…which is why they’re no longer available.