Register a SA Forums Account here!
JOINING THE SA FORUMS WILL REMOVE THIS BIG AD, THE ANNOYING UNDERLINED ADS, AND STUPID INTERSTITIAL ADS!!!

You can: log in, read the tech support FAQ, or request your lost password. This dumb message (and those ads) will appear on every screen until you register! Get rid of this crap by registering your own SA Forums Account and joining roughly 150,000 Goons, for the one-time price of $9.95! We charge money because it costs us money per month for bills, and since we don't believe in showing ads to our users, we try to make the money back through forum registrations.
 
  • Post
  • Reply
Trabisnikof
Dec 24, 2005

of american workers over 16 and not working from home:


9.8% have a 1 way commute time of 60 minutes or more
3% have a 1 way commute time of 90 minutes or more

but its the train commuters who are the ones actually doing those super long commutes:



still, the average one way car commute is 23 minutes, that's a lot of time when you add it up!


also the breakdown by metro is interesting. Atlanta showing up with the larger than average % with 60 minute each way commutes, especially for the metro size.



more commute facts:

quote:

In 2019, the average one-way commute in the United States increased to a new high of 27.6 minutes.
In 2006, the average travel time for the nation was 25.0 minutes. The increase of about 2.6 minutes between 2006 and 2019 represents an increase of about 10% over 14 years.
In 2006, 14.8% of commuters reported travel times of less than 10 minutes; this group declined to 11.9% by 2019. Conversely, the percentage of workers reporting commutes of 60 minutes or lon­ger increased from 7.9% in 2006 to 9.8% in 2019.
The majority of workers, approximately 57%, left for work between 6:00 a.m. and 8:29 a.m. Among this group, those leaving between 6:00 a.m. and 6:29 a.m. reported the longest average travel time to work at 32.8 minutes.

The longest average travel times were associated with various forms of public transportation. For example, workers who traveled to work by bus had an average commute of 46.6 minutes.


https://www.census.gov/content/dam/Census/library/publications/2021/acs/acs-47.pdf

Adbot
ADBOT LOVES YOU

Trabisnikof
Dec 24, 2005

https://www.youtube.com/watch?v=pHJLqrO3P4g

Trabisnikof
Dec 24, 2005

eXXon posted:

Prop 65 stickers

it rules how mad people get about Prop 65 warning you that in fact, the parking garage is giving you cancer from the car exhaust

Trabisnikof
Dec 24, 2005

mystes posted:

Prop 65 is actually pretty useless though because the end result is just everything having a generic label saying "yeah this presumably has a non-zero chance of giving you cancer, whatever"

nah pro 65 is actually really valuable, like when I lived in california there was a metal smelter that you could tell was polluting the poo poo out of the air and eventually they got busted for failing to provide prop 65 warnings for the entire community around them and had to stop operating in california. it was hexavalent chromium and it created its very own cancer cluster.

so they just moved to texas lol

Trabisnikof
Dec 24, 2005

in a garage, on a closed track, or sitting at a car show are the safest places for cars to be. we can get rid of cars from everyone's daily lives and also still let car enthusiasts enjoy their hobby.

much like steam tractor enthusiasts now

Trabisnikof
Dec 24, 2005

Jon Pod Van Damm posted:

China's fastest cross-sea high-speed railway, the 350 km/h Fuzhou-Xiamen high-speed railway, started operation on Thursday. The railway, featuring various intelligent technologies, connects major scenic spots along the coastal cities in the province.

https://www.youtube.com/watch?v=pEbhfRMz4Ac

https://www.youtube.com/watch?v=4ln3NElljYc





Fuzhou-Xiamen High-speed Railway (Fuzhou-Xiamen High-speed Railway) is China's first cross-sea high-speed railway, which starts from Fuzhou City in the north, passes through Putian and Quanzhou City, and reaches Xiamen City and Zhangzhou City in the south, and connects with Hefo Railway and Wenfu Railway in the north, and connects with Xiamen-Shenzhen Railway and Longsha Railway in the south.

It is the passenger transportation corridor of Beijing-Fuzhou-Xiamen high-speed railroad and an important part of the passenger transportation corridor of Southeast Coastal Railway in the "eight vertical and eight horizontal" high-speed railroad network of the Medium and Long-term Railway Network Planning (2016).

Fuzhou-Xiamen high-speed railroad is the first pilot project of China's railroad to promote the TOD (Transit Oriented Development) mode, the first high-speed railroad in Fujian Province with a speed of 350 kilometers per hour, and is also a key project of the national "One Belt, One Road" construction project, provincial and municipal key projects, with a total length of 277.42 kilometers, and 8 passenger stations along the line.

The project started construction on January 15, 2017, and was completed and opened for operation at the end of September 2023. On September 26, 2023, the tickets of Fuxia high-speed railway were officially put on sale, and Fuxia high-speed railway was officially operated on September 28 of the same year.

Length of railroad: 277.42 kilometers / 172 miles

Number of Stations: 8

Railroad Class: Passenger Dedicated Line

Number of main lines: Double lines

Speed target value: 350km/h

Line spacing: 5.0 meters

Minimum curve radius: General 7000m, individual 5500m

Maximum gradient: 20‰

Effective length of arrival line: 650 meters

Type of rolling stock: Electric locomotive

Train operation control mode: Automatic control

Command mode: Centralized dispatching

Minimum train interval: 3 minutes

Investment Cost: Approximately 53.04 billion RMB


Population (urban)
Fuzhou: 4,094,491
Xiamen: 5,163,970
Zhangzhou: 939,943

Population (rural)
Fuzhou: 4,196,777

Population (metro)
Xiamen: 7,284,148
Zhangzhou: 7,284,148



Anhaiwan Cross-sea Bridge


Leigongshan Special Bridge


Magnolia Creek Special Bridge


Wulong River Bridge




Fuxia High Speed Railway


Fuxia High Speed Railway

Project Challenges


Fushe Tunnel



Fushe Tunnel is located in Tong'an District, Xiamen City, is a two-lane tunnel with a design speed of 350km/h. It is the necessary route for the FuXia High-speed Railway to enter and exit the Xiamen High-speed Railway Station, and passes through the core area near the Xiamen North Station, which is the key controlling project of FuXia High-speed Railway in the 8-bid. The total length of the tunnel is 1450m, the maximum depth of the tunnel is about 76m, the tunnel is 150~350m to the right of the existing passenger dedicated line of Fuxia Railway and Shenhai Highway, only 17m away from the crossing of the adjusted moving line under construction and the moving line under construction, the construction is difficult.


Xinlutang Tunnel

Xinlutang Tunnel is located in Tong'an District, Xiamen City, with a total length of 1970 meters, of which the two-lane tunnel is 412 meters long, with a maximum depth of about 61 meters. Xinlutang Tunnel No. 3 has a total length of 1,135 meters, which is a "swallow-tail tunnel" connecting Xiamen High-speed Railway Station and Xiamen North No. 2 Railway Station, with an inlet of double-hole single-lane structure, and an outlet of single-hole double-lane structure, which is a key controlling project of the entire line of the Fuxia-Huaxia High-speed Railway.


Yangmeishan Tunnel


Located at the junction of Minhou County and Fuqing City, Yangmeishan Tunnel is a two-lane, single-cavity, Class Ⅱ high-risk tunnel project, the longest tunnel in the entire line of the Fuxia High-speed Railway, and also the controlling project of the entire line of the Fuxia High-speed Railway. The tunnel has a total length of 10,699 meters, with a maximum depth of 398 meters, a rock burst section of 2,290 meters, extensive distribution of water surges and mud surges in the tunnel, and the tunnel is located in an area with high geological pressure, high geothermal heat, and susceptible to subsidence.


Bifeng Temple Tunnel

Bifeng Temple Tunnel is located in Fuqing City and Putian City, a total length of 8.4 kilometers, is listed as the construction unit of the entire line level of high-risk, the most difficult key control project, the tunnel through 8 fault fracture zone, 8 joints dense zone and 480 meters of strong water-rich zone, the maximum daily water influx of 7800 cubic meters, construction difficulties, high risk.


Quanzhou Bay Bridge


Quanzhou Bay Cross-sea Bridge

Located in Quanzhou City, Quanzhou Bay Cross-sea Bridge is the key controlling project of the entire route of Fuxia High-speed Railway and the first cross-sea high-speed railroad bridge in China. The total length of the bridge is 20.287 kilometers, and the length of the sea bridge is 8.96 kilometers, the main bridge is 800 meters long, the main span is 400 meters, it is a double-tower and double cable-stayed steel-hybrid combined beam and semi-floating system cable-stayed bridge. Quanzhou Bay Bridge has two main towers in the north and south, designed as a curve "H" shape, 160.254 meters high, a single main tower poured concrete volume of 11,230.65 cubic meters. The bridge has many structural types, complex construction techniques, long battle lines during the construction process, difficult organization and coordination, and high risk of high-altitude work at sea.

The area where Quanzhou Bay Bridge is located is characterized by strong winds, deep water, high waves, high salinity and high humidity, which are typical conditions of the marine environment, and it also faces the engineering challenges of the high-intensity seismic zone on the west coast of the Taiwan Strait. The approach bridge adopts double-block ballastless track, which can effectively avoid the ballast track debris ballast splashing and jeopardizing the safety of the train when the high-speed train passes through the bridge at high speed under the environment of strong wind in the bay.


Anhai Bay Bridge

Anhaiwan Special Bridge is located in Quanzhou City, connecting Jinjiang City and Nan'an City, and is the controlling project of the whole line of Fuxia High-speed Railway. The total length of the bridge is 9.46 kilometers, of which the sea-crossing section is 1.56 kilometers long, and the main bridge is a 650-meter double-tower, double-surface, semi-floating steel-mixed girder cable-stayed bridge, with a main span of 300 meters and a main tower height of 126.9 meters, which spans the 2,000-ton main navigation channel of Anhai Bay.


Jiulongjiang Special Bridge



JiuLongJiangShi Bridge, with a total length of 10.28 kilometers, is the controlling project of the whole line of FuXia High-speed Railway. The bridge crosses Yingxia Railway once, Shenhai Highway twice, Jiujiang River three times and national and provincial highways many times.


Zhangzhou Downstream Liaison Line Crossing Hangzhou-Shenzhen Railway Transition Bridge

Zhangzhou Downstream Contact Line Transition Bridge over Hangzhou-Shenzhen Railway is the controlling project of the whole line of Fuxia High-speed Railway, with the weight of the bridge reaching 5,500 tons, and the girder of the transition bridge is less than 10 meters away from the contact network of Hangzhou-Shenzhen Railway business line with the minimum vertical distance, which puts forward a demanding requirement to ensure the safe operation of the railroad.


Meizhou Bay Cross-sea Bridge


Meizhouwan cross-sea bridge




Located in Putian City and Quanzhou City, Meizhou Bay Bridge is 14.7 kilometers long, with a main span of 180 meters, of which the construction length in sea area is 10.8 kilometers, with a design speed of 350 km/h. It is the first cross-sea high speed railroad bridge with short towers in China, and is also the controlling project of the whole line of Fuxia-Huaxia High Speed Railway. The bridge adopts 40.6 meters box girder design except continuous girder, which is the only bridge adopting 40.6 meters box girder for Fuxia High-speed Railway, and the world's first cross-sea high-speed railway bridge adopting 40 meters box girder.

The sea area of Meizhou Bay is characterized by strong winds and waves, obvious tides, and complicated hydrological and geological environments, so the construction party actively promotes the use of new work equipment and new technology, and has successively overcome such construction problems as extra-long trestle bridge at sea, cofferdams in tidal areas, large-diameter deep-water pile foundations, and positioning of cable saddles for the main towers.

Shizhushan Tunnel

Shizhushan Tunnel, with a total length of 2,054 meters, has a shallow buried section of more than 470 meters, with an average depth of 10 meters, and the shallowest section is only 6.8 meters, in which 80% of the perimeter rock of V grade is classified as Class I high-risk tunnel. The tunnel has a complex geological environment, shallow burial depth, close to the Shizhushan Scenic Reserve, crossing two extruding fault zones at the same time, with serious bias pressure at the entrance and exit, and crossing the natural gas pipeline parallel to the tunnel body five times, which makes it difficult to construct the tunnel and poses high risk to the safety of the tunnel.


Xixi Bridge




Xixi Bridge

Xixi Special Bridge is located in Xiamen City, Fujian Province, with a total length of 24.68 kilometers, which is the longest bridge along the Fuxia High-speed Railway, and the main line consists of 663 holes of box girders, with a total of 732 piers and 17 continuous girders. Xixi Bridge is the controlling project along the whole line of FuXia High-speed Railway, the bridge pier 68, 69 crosses one of the busiest trunk lines of China's railroad transportation--Hangzhou-Shenzhen Railway, it is difficult and risky to carry out the construction directly above the railroad, in order not to affect the normal operation of the existing railroad, it adopts the advanced cross-railway construction technology of transporter bridge process.


Taichengxi Bridge



Taichengxi Special Bridge is located in Jingyang Town, Fuqing City, with a total length of 728.13 meters, which is the key controlling project of the whole line of Fuxia Xiamen High-speed Railway, and China's first large-tonnage unbalanced transverse cable-stayed bridge for high-speed railway. The bridge crosses the Shenhai Highway, and is designed as unbalanced transverse cable-stayed bridge to ensure the normal passage of Shenhai Highway. Among them, the total length of the transverse part is 221.3 meters, with a total weight of 38,000 tons, which was the largest unbalanced transverse cable-stayed bridge of high speed rail in China in terms of tonnage up to the time of construction. Meanwhile, the girders on both sides of the bridge's cable-stayed towers are designed with different lengths, with one side being 95.5 meters long and the other being 125.7 meters long, and the weight of the bridge cantilevers on both sides differing by nearly 600 tons.


Jimei Special Bridge


Jimei Bridge

Jimei Special Bridge has a total length of 11.18 kilometers, with 283 holes of simply supported box girders. The bridge is located in an area with complex geological conditions, such as silt, isolated rocks, gravel pebbles, peat, etc., and isolated rocks are widely distributed, which makes the bridge piling project difficult.

Jimei special bridge across the subway section designed for portal pier, the pier longitudinal span of 32.6 meters, the average horizontal span of 30 meters, including 7 piers, each pier upper beams are used steel cover beams, 7 pieces of steel cover beams an average length of 30 meters, 3 meters high, the heaviest 171.5 tons, is the Jimei special bridge is the most difficult to construct the most complex conditions, on the overall erection of the channel construction of the greatest impact on the construction period, the bridge! The steel cover girder of portal pier is the controlling project of Fuxia High-speed Railway.


Mulanxi Special Bridge

Mulanxi Special Bridge is located at the bank of Mulanxi River in Putian City, Fujian Province, with a total length of 18746.92 meters, which is the most difficult and controlling project of the whole line of Fuxia High-speed Railway. The height of the main tower of the bridge is 85.5 meters, and the bottom of the main tower is set with a ball hinge with a carrying capacity of 12,000 tons.


New Yunju Mountain Tunnel Group

New Yunju Mountain Tunnel Group consists of five tunnels with a total length of 4,510.29 meters, which is the most difficult key control project along the whole line of the Fuxia High-speed Railway. Tunnel rock changes are complicated, cave wall rock body stripping, falling blocks, is a hilly area, construction safety risk is high, and the new Yunju Mountain Tunnel No. 3 and the existing Fuxia Railway, Fuping Railway, the new Yunju Mountain Tunnel No. 1 parallel to the established Fuping Railway, from the established Fuping Railway is about 120 meters to 280 meters; Tunnel inlet in the southern end of the southern end of the Fuzhou South Railway Station, below the existing Fuzhou South Railway Station, the terrain is dangerous, and with the Fuxia Railway, the new Yunju Mountain Tunnel inlet, the new Yunju Mountain Tunnel inlet, the new Yunju Mountain Tunnel inlet, the new Yunju Mountain Tunnel inlet. Tunnel inlet, the new Yunju Mountain Tunnel No. 2 exit for the small spacing section; hole on the body across the Sanjiang Highway and the new Yunju Mountain Tunnel, the minimum height of the upper span is about 4.5 meters, with a "small spacing, adjacent to the business line, three-dimensional intersection," the characteristics of the construction of the operating conditions of the complexity of the construction is very difficult.


Wulong River Special Bridge


Erection of the first steel box girder of Wulong River Special Bridge

Wulong River Special Bridge is located in the waters of Wulong River in Cangshan District, which is China's first four-lane high and low tower double cable-stayed hybrid girder high-speed railroad cable-stayed bridge, with a total length of 739.9 meters, a main span of 432 meters, and a combination of 7 concrete box girders and 45 steel box girders, which is the key controlling project of the Fuxia High-speed Railway. Wulong River Special Bridge is located in the waters of fast-flowing water, complex underwater geological conditions, narrow space for construction work, and great difficulty in construction.

Leigongshan Special Bridge

Leigongshan Special Bridge is located in Fuqing City, Fujian Province, with a total length of 2,631.655 meters, which is the key controlling project for the whole line of Fuxia High-speed Railway, horizontally crossing the Shenhai Highway, with a span of 224 meters, the main pier drilled piles with a diameter of 3 meters, and the main pier bearing adopts the spherical bearing with a vertical bearing capacity of 180,000 KN, which is characterized by the large span of the continuous girder, the large diameter of the main pier drilled piles, and the large tonnage of the main pier spherical bearing, etc. The main bridge is located in the windy southeast coastal area, which is a very windy area. The main bridge is located in the southeast coastal windy area, heavy rain, typhoons prevail, the narrow tube effect is strong, the main bridge long tension cable in the wind and rain in the climate conditions will cause significant vibration, wind and rain vibration phenomenon, construction technical difficulties, high safety risk.


Tianzhushan Bridge

Fuxing train



https://en.wikipedia.org/wiki/Fuxing_(train)

https://www.youtube.com/watch?v=y8QIDwHddCA

https://www.youtube.com/watch?v=ySxY4c78XqE

neat

Trabisnikof
Dec 24, 2005

lobster shirt posted:

its called a golf cart

i do think golf carts are the only way to wean america off car brain.

golf carts can get up to 60 miles of range, more than enough for the vast majority of commutes. you can still customize them, you can still feel "independent" or use it as an excuse to hide from the family you hate. still can use existing overbuilt car infrastructure while real public transit gets built out.

Trabisnikof
Dec 24, 2005

HashtagGirlboss posted:

They aren’t expensive enough to impress people tho

im sure the market will provide, you can already spend $52k on a golf cart

Trabisnikof
Dec 24, 2005

and dont worry, someone makes an up-armored golf cart for the cops too:

Trabisnikof
Dec 24, 2005

not much, whats s**g with u

Trabisnikof
Dec 24, 2005

gradenko_2000 posted:

how the gently caress do you bike loudly

attach a gasoline lawnmower engine is a common way

Trabisnikof
Dec 24, 2005

this thread loves the cops almost as much as the econ thread

Trabisnikof
Dec 24, 2005

Second Hand Meat Mouth posted:

leftism is when you break poo poo instead of engaging in community building, goons ftw

just call the cops on them duh

Trabisnikof
Dec 24, 2005

El Pollo Blanco posted:

Nothing wrong with riding on the footpath if you coast along at 10kmh and are courteous to pedestrians when your other option is being run over

nah i dont think motorcycles should ride on the footpath even if theyre going slow

Trabisnikof
Dec 24, 2005

DR FRASIER KRANG posted:

ok cool where's that

pretty far out of town, you'll have to drive there

Trabisnikof
Dec 24, 2005

Peanut President posted:

chicago does this under lake shore drive

https://www.youtube.com/watch?v=rMNui0s0s4c

Trabisnikof
Dec 24, 2005

https://www.youtube.com/watch?v=8Dl4Ag5l8i8

Trabisnikof
Dec 24, 2005

Golf carts are how we wean Americans off cars. Let people drive lifted golf cars, $100k golf carts, ghost ride their golf carts, etc

Trabisnikof
Dec 24, 2005

Smythe posted:

i would be interested in reading a big rear end paper on how the gently caress americans got brainwashed into changing their opinions on suvs from marge simpson mom style "gay" cars for "pussies" into something a "red blooded american man" could buy without incredible shame. this changed over like 10 yrs

women make a majority of car purchasing decisions

Trabisnikof
Dec 24, 2005

gradenko_2000 posted:

What if you attached sails to your bike

get the upgrade to a trike, and ride a land yacht

https://www.youtube.com/watch?v=E4ZOsBw5kgM

https://www.youtube.com/watch?v=lx2TN35RWxg

https://www.youtube.com/watch?v=hJWqcrsI7nc

Trabisnikof
Dec 24, 2005


here's one more appropriate for this thread

https://www.youtube.com/watch?v=-uxSGH4yJXo

Trabisnikof
Dec 24, 2005


ok but if you look at the street view




the building was along the edge of the road, possibly obscured behind a truck. then if truck started to drive through the building was still there. the driver saw the truck start to move and took its turn, planning its move so that it would pass behind the rear of the truck. as the truck accelerated, it moved past the building which was still along the road. the driver spotted the building at this point and braked hard but it was moving too fast and it hit the building.

drivers do the exact same thing all the time. it's a dangerous situation for buildings and you have to be extremely careful not to get into it. countless times on my drives there are places where i know the building is invisible to drivers. you just have to be cautious.

Trabisnikof
Dec 24, 2005

Trabisnikof
Dec 24, 2005

Xaris posted:

to no one's surprise, repaving roads just increases speeds. the ideal case is continued decline of the material base and roads just deteriorating to such a large degree that average speeds decrease
https://twitter.com/BerkSafeStreets/status/1737951952712175877
https://twitter.com/BerkSafeStreets/status/1737951955321032788

the sensor they're using is kinda cool

https://telraam.net/en/S2

Trabisnikof
Dec 24, 2005

gradenko_2000 posted:

something I was idly wondering about earlier today was, if we grant that the internal combustion engine was necessary for overland travel and transportation to be "efficient" enough to competitive with maritime transport (and boats still pull ahead in certain contexts), have modern materials and manufacturing techniques helped close the gap with muscle power? Could you design a horse cart today that was so much lighter and/or could carry so much more, that it would be feasible to use it as a means of transportation?

something like this but with a horse and maybe on the ground:

Trabisnikof
Dec 24, 2005

AreWeDrunkYet posted:

Even if it is, you would need roughly an acre (9 tons of hay a year, 3 tons hay per acre, 3 harvest cycles of alfalfa) of additional agricultural land per horse. That’s basically adding 33% to the existing farmland in the US if you planned to replace every car.

Not sure which is worse for the environment. But the horse would add a bunch of smells and labor to their owners’ lives.

40% of the corn grown in america is turned into ethanol for gasoline lol so you're right, we could only support ~38,000,000 horses if we instead planted alfalfa on the same acreage lol

Adbot
ADBOT LOVES YOU

Trabisnikof
Dec 24, 2005

Precambrian Video Games posted:

I think the F-150 Lightning can get up to 7000 pounds so if a burly retired football player and three of the boys get in while packing some lumber in the bed, it'll be close.

the hummer ev has a curb weight of 9,640 lbs

quote:

The GMC Hummer EV is over twice the weight of an average American car, and the Insurance Institute for Highway Safety had to perform checks to ensure their equipment could handle its mass before crash testing it, since it weighs around 3,500 pounds (1,600 kg) more than the heaviest vehicle they had previously tested

  • 1
  • 2
  • 3
  • 4
  • 5
  • Post
  • Reply