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Old September 14th, 2010, 12:55 AM   #461
Suburbanist
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Quote:
Originally Posted by Positronn View Post

What a shame road geometry isn't a major concern even in these new highways.
In part it is true, but the major issue playing there is other. Experience (and science) has demonstrated that traditional cut-and-embankment techniques are not enough to cope with the extremes amounts of rainfall in that area (up to 3100mm/year, 70% of it concentrated in 120-140 days, in some localized areas) of the country. Earth structures can become unstable and collapse (partially, not catastrophically, requiring extensive renovations later on.

So a cut, to become effective and not result in nearby hill collapsing in the next rainfall over the roadbed, needs to me far more extensive and so, thus requiring some "stupid" curves as so. On the other picture, you see a "terraced" approach to a downhill. It is done to avoid eroding the soil with high-speed high-flowing water in case it were build as a long, constant-grade descent.
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Old September 15th, 2010, 10:02 PM   #462
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Paraná state
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Old September 17th, 2010, 11:50 PM   #463
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Collection of pics by CNT

The national transport association uploaded some pics to their Flickr. Here are they.

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SP-055 near São Sebastião

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SP-055 near São Sebastião

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SP-373

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SP-326 near Barretos

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SP-300 near Lins

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PR-090

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BR-040 near Três Rios

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BR-470

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BR-450 in Brasilia

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BR-420 near Jaguaquara

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BR-412 near Campina Grande
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Old September 18th, 2010, 12:00 AM   #464
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More pics

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BR-407 near Picos

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BR-354

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BR-267 near Nova Alvorada

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BR-242 near Seabra

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BR-158

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BR-153 near Gurupi, renovation works ongoing

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BR-153

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BR-135 near Curvelo

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BR-135, roughly 2.100 km north of previous photo

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BR-122 near Petrolina
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Old September 18th, 2010, 12:08 AM   #465
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Last batch

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BR-122 near Petrolina

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BR-116 near Vacaria

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BR-110 near Tucano

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BR-101

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BR-101 near Casemiro de Abreu


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BR-101

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BR-060 near Mineiros

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BR-040 near Três Rios

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BR-040 near Juiz de Fora

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BR-020 near Posse

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BR-040 near Petrópolis
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Old September 18th, 2010, 02:39 AM   #466
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WOW! Fantastic pictures of road improvement, they look beautiful!

What is the current percentage of roads in Brazil in good/perfect conditions? Has there been any improvements in this percentage over the past 10 years?

Is there a map showing which roads are good and which are in poor state?

Thank you
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Old September 18th, 2010, 03:19 AM   #467
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Old September 18th, 2010, 03:41 AM   #468
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brazilian roads again

Rodovia dos imigrantes - São Paulo state
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Rodovia dos imigrantes - São Paulo state
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SP Castello Branco
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Road in Bahia state
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Washington Luiz Highway
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Rodovia Castello Branco[SP-280]
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Serra Gaúcha/Brasil
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Rodoanel in São Paulo state
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Rodoanel in São Paulo state
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NEAR Rodoanel in São Paulo state
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Rodoanel in São Paulo state
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Rodoanel in São Paulo state

Near curitiba , BR 116
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Via Anhanguera{SP 330]
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Rodovia BR 376 - Londrina-Curitiba
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BR 116 near Petropolis
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Rodovia BR 376
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Last edited by engenx4; September 18th, 2010 at 04:49 AM.
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Old September 18th, 2010, 11:23 PM   #469
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More pictures ...
Br 116 in santa catarina state
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Rio Tibagi. PR 323.
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BR 116 in Parana state
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BR 116 in parana state
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Marginal Tiete in são paulo city
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Br 101 in Espirito Santo state
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Road near Ilheus
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Road in BAHIA state
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br 101 near Paraty
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road near são vicente , são paulo state
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Br 101 in Natal
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Road in boraçura
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image hosted on flickr

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Br 101 near Uruguai
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Br 101 in Santa catarina state
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Road near campos
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Freeway in Rio grande do sul state
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BR 101 near rio grande do norte state
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Old September 18th, 2010, 11:26 PM   #470
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Are there no road reports from Brazil? I mean, these pics are nice, but very random... they look like shameless country promotion, while not inducing discussion.
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Old September 18th, 2010, 11:43 PM   #471
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Quote:
Originally Posted by ChrisZwolle View Post
Are there no road reports from Brazil? I mean, these pics are nice, but very random... they look like shameless country promotion, while not inducing discussion.
Posting a picture on a forum supposed to show and share photos now is shameless country promotion.

Last edited by lfernand; September 24th, 2010 at 01:26 AM.
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Old September 18th, 2010, 11:57 PM   #472
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Some discussion?
I propose a national motorway plan, something that nobody has talked about (on the government). Without clear specifications, we just have a growing duplicated road network, but these roads are in its majority, old roads from the beggining of last century, with sharpe curves, no access control, at-grade intersections (shocking, I know), pedestrian crossings, and many other problems...

So, my idea is: to define these specifications, draw a complete motorway system and find the best solutions to achieve the full motorway system. It could use the old roads in some stretches, build new ones, close rural roads accessing the highway. And off course, give priority to the busiest roads.
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Old September 19th, 2010, 12:47 AM   #473
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Quote:
Originally Posted by ChrisZwolle View Post
Are there no road reports from Brazil? I mean, these pics are nice, but very random... they look like shameless country promotion, while not inducing discussion.

i didn't saw that comment

Last edited by engenx4; September 19th, 2010 at 12:59 AM.
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Old September 19th, 2010, 03:37 AM   #474
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Quote:
Originally Posted by ChrisZwolle View Post
Are there no road reports from Brazil? I mean, these pics are nice, but very random... they look like shameless country promotion, while not inducing discussion.
There area quite a few documents, all of them in Portuguese, most of them in PDF.

For instance, from that same set of pics producers there is a comprehensive report of Brazilian road network, covering 95.000km.

You can check it here: http://www.sistemacnt.org.br/pesquisacntrodovias/2010/
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Old September 19th, 2010, 07:05 AM   #475
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Great job engenx4 only a minor mistake:

image hosted on flickr


This picture caption says Marginal Tietê but this is Marginal Pinheiros
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Old September 19th, 2010, 11:09 AM   #476
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Quote:
Originally Posted by Suburbanist View Post
There area quite a few documents, all of them in Portuguese, most of them in PDF.

For instance, from that same set of pics producers there is a comprehensive report of Brazilian road network, covering 95.000km.

You can check it here: http://www.sistemacnt.org.br/pesquisacntrodovias/2010/
As you can see Sao Paulo has by far the best roads in Brazil, but Rio Grande do Sul, Rio de Janeiro and Parana aren't bad either.

By the way, are there any recent pics of the Marginal Tiete widening?
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Old September 19th, 2010, 11:19 AM   #477
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there 350 000km-450 000km of paved roads in brazil at the moment.
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Old September 19th, 2010, 11:32 AM   #478
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Quote:
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there 350 000km-450 000km of paved roads in brazil at the moment.
No. According to the national agency with jurisdiction of those matters, there are 152.000km of paved road, excluding urban streets and avenues.
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Old September 19th, 2010, 11:12 PM   #479
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well might there be 200000 km of paved city roads then?
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Old September 20th, 2010, 08:18 PM   #480
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I guess, 152.000 are the federal roads.

440.000 is the total.
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