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View Poll Results: Which is the busiest Freeway
401-Toronto 170 57.43%
Santa Monica Freeway-LA 96 32.43%
Southwest Freeway-Houston 14 4.73%
I-85-Atlanta 16 5.41%
Voters: 296. You may not vote on this poll

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Old May 4th, 2010, 06:56 PM   #601
isaidso
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Quote:
Originally Posted by Paddington View Post
I dunno, black people? Actually, a large number of Canadians commute to my workplace each day to take jobs that the Michigan locals don't want. A crappy American job still pays better than a good Canadian one, enough at least to put up with the border delays each way.
What a load of crap!

You have a warped sense of reality based on selected examples that validate your views. You do realize that Windsor has the highest unemployment rate in Canada and that it's really just a suburb of Detroit? People live in the suburb and commute to work. Windsor is doing poorly because it's a suburb of a poor US city.
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Old May 25th, 2010, 05:40 PM   #602
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Quote:
Originally Posted by J.Paulo View Post
I understand Chris, perhaps the numbers are apples and oranges.

Take a look at this: http://www.novamarginal.sp.gov.br/no...php?id=453&c=6

It confirms that in fact it has 11 lanes (i thought 10) in both ways, which are 23,5 km long.

"Vehicles: 350.000 per day
Trucks: 70.000 per day
Motorcycles: 45.000 per day"

JP
New numbers just came out for the Marginal Tietê:

http://www.novamarginal.sp.gov.br/no...cia.php?id=467

- Average speed has increased by 26,8% (20,5 km/h nov/2009 to 26 km/h apr/2010)
- In the peak hours of the morning (07:00 to 10:00), average speed has increased to:
--- Local (outer lanes) 29,3 km/h;
--- Central 46,0 km/h;
--- Express 45,5 Km/h
- In the peak hours of the afternoon/night (17:00 to 20:00 - peak of the day), average speed has increased to:
--- Local (outer lanes) 32,5 km/h;
--- Central 37,6 km/h;
--- Express 38,2 Km/h
- Traffic flow has increased by 40%
- Trucks volume has decreased by 9,3% (due to new section of the outer ring road "Rodoanel" inaugurated)

-----------------------------------------------------------

So, as no new vehicles per day numbers where distributed, we can especulate:

End of 2009

Vehicles: 235.000 per day
Trucks: 70.000 per day
Motorcycles: 45.000 per day
---------------------------
Total: 350.000 per day

April/2010 (considering increase of 26,8% in speed = 26,8% increase in volume)

Vehicles: 298.000 per day (26,8% increase per day)
Trucks: 63.000 per day (-9,3% per day)
Motorcycles: 45.000 per day (maintained)
---------------------------
Total: 406.000 per day

April/2010 (considering increase of 40% of vehicle flow = 40% increase in volume)

Vehicles: 329.000 per day (40% increase per day)
Trucks: 63.000 per day (-9,3% per day)
Motorcycles: 45.000 per day (maintained)
---------------------------
Total: 437.000 per day

Maybe Chris could help with the numbers - specially based on the speed - what are the numbers possible.

JP

PS: Live traffic cams, which include the marginal tietê (one of them): http://video.globo.com/Videos/Player...O+VIVO,00.html

Last edited by J.Paulo; May 25th, 2010 at 06:13 PM. Reason: Include live traffic cams
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Old May 25th, 2010, 06:41 PM   #603
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The percentage of speed increase does certainly not reflect an equal increase in traffic volumes.
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Old May 25th, 2010, 07:37 PM   #604
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Quote:
Originally Posted by Paddington View Post
I dunno, black people? Actually, a large number of Canadians commute to my workplace each day to take jobs that the Michigan locals don't want. A crappy American job still pays better than a good Canadian one, enough at least to put up with the border delays each way.
Oh, please. Canada's hardly a third-world country.
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Old May 25th, 2010, 10:04 PM   #605
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Quote:
Originally Posted by ChrisZwolle View Post
The percentage of speed increase does certainly not reflect an equal increase in traffic volumes.
I perfectly understand and agree with that logic.

I hoped with the numbers given, you could find/estiamte the current volume off vehicles/day on the marginal tiete.

JP
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Old May 25th, 2010, 10:11 PM   #606
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It's hard to say. The expansion of capacity also means an increase in traffic volumes, because people are usually trying to find alternate routes to avoid congestion on the Marginal Tiête. Once it flows again, that traffic comes back to the original route (the Tiête). Any traffic engineer worth his salt knows this and calculates this.
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Old May 26th, 2010, 06:01 AM   #607
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Quote:
Originally Posted by Paddington View Post
Despite one 14 lane expressway, Toronto's expressway network is pretty weak overall if you compare it to Detroit for example.
Huge exaggeration. The 427 is 12 lanes, the 400 is 12 lanes, the 404 is 10 lanes, the 409, DVP and Gardiner have 6... that's just in the city proper. Not just one '14-lane' hwy. Not to mention those surrounding the city.
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Old May 26th, 2010, 06:27 AM   #608
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Originally Posted by algonquin View Post
Huge exaggeration. The 427 is 12 lanes, the 400 is 12 lanes, the 404 is 10 lanes, the 409, DVP and Gardiner have 6... that's just in the city proper. Not just one '14-lane' hwy. Not to mention those surrounding the city.
I think he's referring to the total number of highways. Detroit has a lot compared to Toronto. Although Detroit is a larger city by total area. Toronto has a larger population and is denser.
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Old May 26th, 2010, 08:00 PM   #609
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What is the busiest road if you take the AADT and divide it by the number of lanes on a given road or stretch of road to give you more of a "per-capita" figure? The 401 is the busiest because it is so wide. However, if you count traffic volume per-lane then would it still be number 1?
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Old May 26th, 2010, 08:16 PM   #610
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That's called the "I/C" value (Intensity divided by capacity). At values over 1.0 you'll have structural and severe congestion. Below 0.7 on rural and 0.8 - 0.9 is something to desire on urban roads. From 0.8 there is some congestion. The Dutch Coen Tunnel (A10, Ring Amsterdam) has an I/C value of 1.3..... Which is fairly rare.

However, there is no fixed number for capacity. Some say 2,000 vehicles per hour per lane, some say 2,200 and others say 2,500. Over 1,800 vehicles per hour per lane traffic generally becomes sluggish. The Coen Tunnel has 3,000 vehicles per hour per lane.

( I/C values are usually expressed in hourly values, rather than AADT values).
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Old August 5th, 2010, 02:06 PM   #611
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(agradecería si alguien me ayuda traduciendo)

Nadie mencionó el Acceso Norte a Buenos Aires....
AADT (2008): 348115

Creo que es suficiente para estar en el TOP 5.

http://www.occovi.gov.ar/prensa/pdf/..._2002-2009.pdf


Last edited by Martin Ferraro; August 5th, 2010 at 02:41 PM.
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Old August 5th, 2010, 02:13 PM   #612
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Highly interesting, thanks!
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Old August 6th, 2010, 02:01 AM   #613
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SP-015 has 385.000 vehicles per day according to CET-SP / 2010.



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Old August 6th, 2010, 02:55 AM   #614
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Quote:
Originally Posted by lfernand View Post
SP-015 has 385.000 vehicles per day according to
385.000 would be something like the AADT. The actual number of different vehicles using this expressway in any single day easily racks up to 1,4 million, or slightly more than 20% of the average total number of vehicles that venture out the city network every single day.

Another information concerning SP-015/Marginal Tietê: motorbikes have been banned from the 4 express lanes (those closest to the riverbed in both directions). Motorcyclists are whining because they will lose access to the lanes where trucks are forbidden, but I agree with the ban: it is too dangerous for them and too annoying for car drivers.
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Old August 6th, 2010, 07:40 AM   #615
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Originally Posted by Suburbanist View Post
385.000 would be something like the AADT. The actual number of different vehicles using this expressway in any single day easily racks up to 1,4 million, or slightly more than 20% of the average total number of vehicles that venture out the city network every single day.

Another information concerning SP-015/Marginal Tietê: motorbikes have been banned from the 4 express lanes (those closest to the riverbed in both directions). Motorcyclists are whining because they will lose access to the lanes where trucks are forbidden, but I agree with the ban: it is too dangerous for them and too annoying for car drivers.
I think this number is for different vehicles per day, but it looks you understand more this than me. Theses numbers are from São PAulo's Engineering Traffic Company CET-SP, but the news in portuguese I read just said 385.000 daily vehicles flow.
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Old August 6th, 2010, 05:09 PM   #616
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I'm guessing the worlds busiest road is in China...
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Old August 6th, 2010, 05:49 PM   #617
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Nope, China's expressways rarely go over 10 lanes. At 10 lanes, the maximum traffic volume is usually around 280,000 AADT with around the clock congestion.

The most busiest confirmed roads so far;

1) Highway 401 in Toronto: 430,000 AADT
2) Interstate 405 in California (L.A.): 395,000 AADT
3) Marginal Tiête in Sao Paulo: 385,000 AADT
4) Acceso Norte in Buenos Aires: 348,000 AADT*

* some Los Angeles area freeways may just top this
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Old August 6th, 2010, 07:42 PM   #618
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Otra imagen del Acceso Norte
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Old August 6th, 2010, 08:52 PM   #619
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Is there an official source that states the 401 as the world's busiest highway? The only ones I seem to find state it as the busiest in North America and one of the busiest in the world.
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Old August 6th, 2010, 09:14 PM   #620
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Is there an official source that states the 401 as the world's busiest highway? The only ones I seem to find state it as the busiest in North America and one of the busiest in the world.
No. They are simply not sure if there are busier roads. However, we have ruled out other potentials als Sao Paulo and Buenos Aires, so it's almost certain the 401 is the world's busiest road. There are just no worldwide statistics to prove this.

To top the 401, you need a traffic volume of more than 430,000 vehicles per day. To reach such a volume, you need at least a freeway with 16 lanes or more. There aren't many of those.
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