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Happy Noodle Boy posted:Joining this group has made going to Facebook a joy again.
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# ? Oct 29, 2017 20:29 |
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# ? May 28, 2024 02:40 |
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I wake up every day with like 15 NUM4TOT notifications. It's great.
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# ? Oct 29, 2017 20:30 |
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What are those? Anyway, here's a thing someone wrote about roads recently. https://harpers.org/archive/2017/11/bumpy-ride/
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# ? Oct 30, 2017 08:11 |
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Hippie Hedgehog posted:What are those? New Urbanist Memes For Transit Oriented Teens it's a facebook meme circlejerk group about transit and urbanism
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# ? Oct 30, 2017 15:07 |
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Funny thing is, most new urbanists are idiots that do a good job of destroying transit in the name of improving it. Fundamentals like area coverage, layovers and connections take a backseat to headway, headway, headway! Headway doesn't matter when you can't get to your point B via transit or your buses all get piled up at the same intersection. They also don't understand the base rule of politics: money talks. Varance fucked around with this message at 14:59 on Oct 31, 2017 |
# ? Oct 31, 2017 14:54 |
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Counterpoint: it's a meme group made for shitposting
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# ? Oct 31, 2017 15:47 |
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Also one of the mods is literally works in planning for a major US bus system.
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# ? Oct 31, 2017 17:37 |
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Baronjutter posted:Also one of the mods is literally works in planning for a major US bus system. Oh, so they're incompetent then.
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# ? Oct 31, 2017 20:45 |
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Varance posted:Funny thing is, most new urbanists are idiots that do a good job of destroying transit in the name of improving it. Fundamentals like area coverage, layovers and connections take a backseat to headway, headway, headway! Headway doesn't matter when you can't get to your point B via transit or your buses all get piled up at the same intersection. I'd rather have idiots posting about BRT on facebook than idiots building a 9 lane highway through a nature reserve, personally.
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# ? Nov 1, 2017 00:24 |
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Slate posted:How Can You Stop Cars From Plowing Into Crowds? So obviously bollards are in the news with box trucks running over pedestrians and cyclists being such an easy thing to do. Las Vegas announced that they're planning on lining parts of the Vegas Strip with bollards, at the cost of nearly $5 million. My question is where do these costs come from, and how affordable is it to put these bollards in throughout urban areas? $5 million for 700 bollards comes to more than $7,000 per bollard. If you assume that you need to place a bollard every five feet on both sides of a street, then it covers an length of only 1,750 ft - only a small percentage of the entire length of the strip. So obviously they're only covering the most important locations. But from poking around online, it looks like you can easily buy a steel pipe bollard for $100 - $150 when buying in bulk. Why are these bollards so expensive, and what are more affordable ways of protecting sidewalks, bike lanes, and buildings? http://www.allcostdata.info/detail.html/027201001/6%22-Steel-Pipe-Bollard,-Concrete-Filled-Painted,-8%27L-in-13%22D-x-4%27Dp-Hole Now obviously there's labor costs, but according to some online estimates, it looks like they come to about half the cost of installation. It seems to me that if you estimate that the "average" American roadway costs around $5 million per mile, and that you'd need about 2,000 steel pipe bollards to line that roadway on both sides, then adding basic bollards to a road would increase costs by only about ten percent (an additional $520,000). Is my math off here? Kaal fucked around with this message at 00:35 on Nov 2, 2017 |
# ? Nov 2, 2017 00:11 |
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Kaal posted:So obviously bollards are in the news with box trucks running over pedestrians and cyclists being such an easy thing to do. Las Vegas announced that they're planning on lining parts of the Vegas Strip with bollards, at the cost of nearly $5 million. My question is where do these costs come from, and how affordable is it to put these bollards in throughout urban areas? $5 million for 700 bollards comes to more than $7,000 per bollard. If you assume that you need to place a bollard every five feet on both sides of a street, then it covers an length of only 1,750 ft - only a small percentage of the entire length of the strip. So obviously they're only covering the most important locations. But from poking around online, it looks like you can easily buy a steel pipe bollard for less than $100 when buying in bulk. Why are these bollards so expensive, and what are more affordable ways of protecting sidewalks, bike lanes, and buildings? This is the Vegas strip you're talking about. Do you honestly expect them to put in a steel pipe or an old piece of railroad track? Many parts of the strip already feature decorative fencing or k-rail to keep pedestrians and cars separated along Las Vegas Blvd. They're likely going to finish the job in similar fashion. Examples: https://www.google.com/maps/@36.1143584,-115.1729289,3a,75y,228.99h,84.43t/data=!3m6!1e1!3m4!1sscicWbrVSUi03k0HeTBEzQ!2e0!7i13312!8i6656 https://www.google.com/maps/@36.1013407,-115.1727216,3a,75y,18.97h,89.33t/data=!3m6!1e1!3m4!1sWtnTSkMNAvIil2FARFf4Kw!2e0!7i13312!8i6656 Nice, low-profile bollards that double as benches: https://www.google.com/maps/@27.9494566,-82.460866,3a,43.5y,193.57h,83.19t/data=!3m6!1e1!3m4!1sr0HtUVCGfidsR1FOT0L5zQ!2e0!7i13312!8i6656 The cheap poo poo: https://www.google.com/maps/@27.9740735,-82.5027155,3a,75y,330.29h,97.62t/data=!3m6!1e1!3m4!1sBf_9ZrJ3d0STDK_1D7z1_A!2e0!7i13312!8i6656 https://www.google.com/maps/@27.9440517,-82.4459848,3a,42.5y,157.76h,88.1t/data=!3m6!1e1!3m4!1sMB3uxyJ9B2191pQFIB44Ug!2e0!7i13312!8i6656 Varance fucked around with this message at 00:46 on Nov 2, 2017 |
# ? Nov 2, 2017 00:35 |
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Varance posted:This is the Vegas strip you're talking about. Do you honestly expect them to put in a steel pipe or an old piece of railroad track? Most of the strip is already covered in decorative fencing to keep pedestrians out of Las Vegas Blvd. I mean, I understand that, it's just amazing that the costs are so high when you look at what they're installing. These things look like totally normal bollards: http://news3lv.com/news/local/construction-kicks-off-to-install-new-safety-bollards-on-the-las-vegas-strip These are the bollards that Wall Street installed, which were apparently $5000 - $8000 each: http://www.allenmetals.com/project/wall-street-bollards/ Kaal fucked around with this message at 00:47 on Nov 2, 2017 |
# ? Nov 2, 2017 00:44 |
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Those look to be twice as thick as standard bollards. Probably an element of price gouging in here as well, since it's a rush order. Anyway, here in Tampa, we're building a new land bridge to connect one of the bay bridges with an expressway. This is Florida, and our expressways have to be decorative. This is exactly what a rail structure would look like on the same road, but we're building it for cars instead. Unfortunately, it will be a traffic clusterfuck from day one, as it's only one lane wide in each direction with some horrible merges. Here, have a video: https://www.youtube.com/watch?v=oVLiYuMOXIc Varance fucked around with this message at 01:02 on Nov 2, 2017 |
# ? Nov 2, 2017 00:51 |
Varance posted:Those look to be twice as thick as standard bollards. Probably an element of price gouging in here as well, since it's a rush order. oh tampa *sigh*
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# ? Nov 2, 2017 01:15 |
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Are the left hand exits along the Katy toll road in Houston an epic troll of Houston? As far as I can tell all they do is gently caress up traffic for everyone with minimal speed gains for those paying the toll.
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# ? Nov 2, 2017 01:34 |
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Part of the costs associated with those bollards is likely to include: temporary traffic management if they need to do anything on the road, underground services location / excavation for the foundation of the bollards, plus all of the other things mentioned. The bit you see above ground is only part of it - if its expected to stop a vehicle its going to need a strong foundation.
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# ? Nov 2, 2017 06:42 |
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Also, it's the loving strip. I bet that 24-36 inches below the surface, there's a ton of poo poo that they'll have to mark out, map, and avoid/plan for. And the most expensive part of any installation, humans, are required at every step. Traffic management is a huge burden. You've got to make a plan, get that plan approved, hire the subcontractor (Trafficade ), do evaluations, print business signs for the signposts, deal with accidents/lawsuits due to the traffic redirect, etc.
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# ? Nov 2, 2017 06:45 |
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Lobsterpillar posted:Part of the costs associated with those bollards is likely to include: temporary traffic management if they need to do anything on the road, underground services location / excavation for the foundation of the bollards, plus all of the other things mentioned. And the other side of the coin would be those fancy bollards pictured on wall street. They're usually not the primary protection so they don't need to be as firmly secured. And their above ground parts are bulky heavy pointy metal too which does a good enough job providing resistance the way a sheared off standard bollard couldn't.
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# ? Nov 2, 2017 06:50 |
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Can anyone here explain to me why it is that this spot (the Macarthur Maze) in the bay area is bogged down even at like 10:00PM with no accidents? Everyone bitches about bay area traffic, but I think this is one of the few spots that genuinely bothers me because it seems be poo poo regardless of how many people are on the road.
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# ? Nov 2, 2017 07:26 |
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Varance posted:Nice, low-profile bollards that double as benches: Those look like they just popped down some concrete blocks on the ground, though. Are they really anchored? Less bollards, more like jersey barriers, then. In the incident in Stockholm last year, there were similar concrete blocks supposedly protecting the pedestrian street, but the driver just plowed through them. He was driving a stolen lorry, and those blocks were only designed to stop a car. quote:https://www.thelocal.se/20170607/sweden-strikes-political-anti-terror-deal-after-stockholm-attack Varance posted:The cheap poo poo: Those, on the other hand, may well be properly anchored to stop even lorries. Can't tell that from above-ground, I guess. Here is the BBC making a seemingly very positive video about a certain brand of high-security bollard. Crash is around the 4:00 mark. I'm sure this costs a fortune, though. https://www.youtube.com/watch?v=HAkCypsQIQk
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# ? Nov 2, 2017 10:45 |
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Hippie Hedgehog posted:Those look like they just popped down some concrete blocks on the ground, though. Are they really anchored? Less bollards, more like jersey barriers, then.
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# ? Nov 2, 2017 10:57 |
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Honestly I imagine most installations are like highway guardrails - designed to handle the results of crashes on the road or some drunk swerving into the sides. But not usually designed and planted such that they'll stand up to a large vehicle aiming to go right through.
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# ? Nov 2, 2017 14:28 |
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This is one of those topics that really doesn't need to be discussed in great detail on the Internets, but the bollards going in on the strip are top ASTM spec and specialized for install anywhere. Top rated, stop everything in its tracks at 50 MPH type deal. Most joe average bollards without a steel base 12 inches into the ground aren't quite as good, and can be overpowered. Ground stone-style bollards will cause extreme damage to and very much slow down a rig, but a speeding rig will penetrate 20-30 meters before it stops, same as bollards that don't have that underground steel.
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# ? Nov 2, 2017 18:21 |
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Yeah, if a terrorist learned the exact specs for bollards in a particular spot, they might choose to attack some place else instead. Oh, wait, that's exactly the point of putting up bollards in the first place. I mean, if you're a terrorist scouting the Internet for good locations to attack, I don't think you're the kind of attacker that will be deterred by clever traffic engineering. You just take your attack some place else.
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# ? Nov 3, 2017 09:07 |
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Varance posted:Those look to be twice as thick as standard bollards. Probably an element of price gouging in here as well, since it's a rush order. I mean...it looks like they'll at least keep the normal road as-is once it's done so it's not the worst idea even if it really should be 2 lanes each way. It at least siphons the through-traffic off of the road so the local traffic has less to contend with...at least until someone goes full Florida-Man and blocks one or both directions with a wreck and you now have people stranded 30 feet up in their cars
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# ? Nov 3, 2017 10:08 |
I'm going to give the video the benefit of the doubt about the size of the cars, which means that technically it could fit two lanes and keeps a sizable shoulder to allow for accidents
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# ? Nov 3, 2017 11:27 |
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Watermelon Daiquiri posted:I'm going to give the video the benefit of the doubt about the size of the cars, which means that technically it could fit two lanes and keeps a sizable shoulder to allow for accidents Yeah, those cars are WAY too big. The close one down on the ground is completely filling up a lane, which is at least 10', probably 11' wide. Passenger cars are ~6 to 6.5 feet wide, so the graphics person responsible for that probably screwed up the car size to make them fill the lanes. They're usually pretty good about getting the lane and bridge sizes consistent, because someone hands them a set of plans/CADD file showing all the dimensions.
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# ? Nov 3, 2017 13:41 |
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Remember, this is Florida we're talking about. Traffic wrecks that shut down 2-3 lanes are an everyday thing. The main elevated deck is 3 reversible lanes wide plus medians, no divider, so incidents are manageable. When fire rescue can't get to an incident on this elevated structure in a one lane scenario, they're going to have to block both directions up top with standard engines, and possibly lanes down below with aerial equipment (and its twice as tall as it should be to appease local businesses, so quints are the minimum response). The I-4/Selmon connector has the same setup, and has similar problems. It's our answer to the time-tested question of "How can we make Malfunction Junction worse?" (I-4/I-275 interchange)
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# ? Nov 3, 2017 18:04 |
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Varance posted:The I-4/Selmon connector has the same setup, and has similar problems. It's our answer to the time-tested question of "How can we make Malfunction Junction worse?" (I-4/I-275 interchange) I mean, could be worse. Could be underground instead of above ground.
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# ? Nov 3, 2017 19:40 |
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I've always wondered if extensive underground segments scare off some of the normal traffic demand that would otherwise use the exact same size and quality of roads.
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# ? Nov 3, 2017 23:53 |
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fishmech posted:I've always wondered if extensive underground segments scare off some of the normal traffic demand that would otherwise use the exact same size and quality of roads. That's an argument I had with Busch Gardens management at one time. The train always got the shaft in favor of the skyride. Problem is, a lot of people don't want to ride the skyride. It's both claustrophobic AND acrophobic. I'd have packed trains all day long, 350-400 passengers with not a seat to spare, and two extra trains sitting in the yard... but no manpower to run them. Meanwhile, I see skyride employees screwing around on platform, doing nada with gondolas going by empty. You'd tell people to go ride the skyride, but half of them would give you a "Hell no!" answer.
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# ? Nov 4, 2017 04:04 |
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Varance posted:Claustrophobia is a thing, so yes. Some people won't use a subway because of that. Same thing with aerial transportation modes like planes, monorails and gondola lifts wen it comes to acrophobia. The Skyride is basically the best way to get across the park, for this very reason. Only losers and foamers ride the train.
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# ? Nov 4, 2017 04:26 |
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Well, that and the 5 MPH average speed these days. Back in '09, the train was faster than the skyride. If I were on duty and we weren't running every 10 mins on a 3 train operation, I would start timing radio calls to see who was dragging their feet. 40/20/10 or bust. Now, it's more like 70/35/20. That kind of attitude is why SeaWorld is going down the tubes, not Blackfish. I have tons of theme park stories, but that's for another thread.
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# ? Nov 4, 2017 05:10 |
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Varance posted:Well, that and the 5 MPH average speed these days. Back in '09, the train was faster than the skyride. If I were on duty and we weren't running every 10 mins on a 3 train operation, I would start timing radio calls to see who was dragging their feet. 40/20/10 or bust. Now, it's more like 70/35/20. That kind of attitude is why SeaWorld is going down the tubes, not Blackfish.
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# ? Nov 6, 2017 03:17 |
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Instead of spending thousands of dollars on a single bollard, why not buy 1-2 ton flat-faced boulders for a few hundred dollars each from a local quarry and cement them to the ground? Simple, quick, much cheaper, and aesthetically pleasing.
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# ? Nov 6, 2017 06:45 |
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Eclogite posted:Instead of spending thousands of dollars on a single bollard, why not buy 1-2 ton flat-faced boulders for a few hundred dollars each from a local quarry and cement them to the ground? Simple, quick, much cheaper, and aesthetically pleasing. Some places have done that, I think. Especially parks blocking non-motorized paths.
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# ? Nov 6, 2017 07:28 |
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Eclogite posted:Instead of spending thousands of dollars on a single bollard, why not buy 1-2 ton flat-faced boulders for a few hundred dollars each from a local quarry and cement them to the ground? Simple, quick, much cheaper, and aesthetically pleasing.
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# ? Nov 8, 2017 04:13 |
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This has probably been covered before, but as my now one lane of traffic crawled along a road with cones up for 2 miles before coming to about 100 feet of actual roadwork, then another mile before the cones stopped and I could rage-pass everyone on the right: Why does road construction work seen to involve closing dramatically more road than will be worked on that night? If construction companies are being fined based on the amount of road closure they require, why not have a huge truck with blinding lights 200 yards back from the actual work with cones tapering into there? For that matter, why not only close the sections that are being worked on or drying, then have a couple guys go back or forwards to lay out more cones to expand the space as needed later on?
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# ? Nov 8, 2017 05:14 |
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Because people rage pass on the right when they think there's no construction and hit and kill construction crews. So people need the huge fuckoff warning, and even then still gently caress it up.
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# ? Nov 8, 2017 05:21 |
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# ? May 28, 2024 02:40 |
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Why does a construction zone with 70mph construction-area speed limit signs and no lane closures cause people in Miami to brake down to 39mph in the left lane? People are loving stupid, and they also drive.
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# ? Nov 8, 2017 05:39 |