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Old December 21st, 2012, 05:57 PM   #141
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Originally Posted by Sunfuns View Post
Same could be said about Chinese. Infrastructure should be built with one eye to the future.
The Chinese are building rail on what is mostly flat terrain.

Moreover, the population density of China per km² is several times that of Brazil. Countries like Brazil, Argentina etc. should aim at reproducing the American and Australian paradigm, since they are sparsely populated.
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Old December 21st, 2012, 06:17 PM   #142
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...And just like the U.S. and Australia, there's a corridor where HSR makes sense: the NEC in America, Sydney-Melbourne in Australia, and Rio-Sao Paulo in Brazil.

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Old December 22nd, 2012, 02:46 AM   #143
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Originally Posted by Suburbanist View Post
The Chinese are building rail on what is mostly flat terrain.
I'm sure you are counting the line to Lhasa among the reallh flat ones.

USA is no authority on this subject plus there is a high population density in certain areas of both countries.
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Old October 31st, 2014, 02:30 PM   #144
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After three failed attempts to tender, Brazil gets its high-speed project

I find no source in English, but in Spanish magazine this news appears Vía Libre (translate as best I can, sorry):

After three failed attempts to tender, Brazil gets its high-speed project

Effective competition of the work could be completed by mid-2016.

"After eight years of projects and studies, and after three failed attempts to tender, the new Brazilian government gets its proposed high speed line of Campinas and São Paulo to Rio de Janeiro, following recent elections.

(10/31/2014) Finished the elections for the presidency with the victory of Dilma Rousseff, the technical and economic studies of the project, silenced during the election year, has continued and the company Planejamento and Logistics (EPL) to will conclude shortly before launching the tender documents of work.

The State of São Paulo expected in early 2015 could launch bids for new technical studies including loa demand analysis, operational costs, detailed investment and geology, among others.

The hiring of these new studies is imposed by the Court of Audit (TCU) last August issued an opinion which urged to do them because the study of technical and economic feasibility hitherto managed by the National Land Transport Agency (ANTT) to bid for the project was outdated.

Political project

The first high-speed line is a Brazilian project that advocated the re-elected president, who in his first term bid prompted several attempts that did not come to fruition in the economic and social climate is very involved.

The project was not big issue in the election campaign but internal party discussion Dilma Rousseff. The president said at a meeting with voters, who had not abandoned the idea of ​​high speed as considered necessary for the Rio São Paulo corridor that provides sufficient demand, and only the need to attract more attendees to the project and the crisis euro between 2011 and 2013 forced wait for a better occasion.

Objective 2016

However, the economic situation and forecasts for 2015, yet no signs that they can afford the expenses billionaires required by the project and the possibilities to be launched next year are slim.

But the hiring of new studies suggests that, passed a new analysis of TCU, and the political impetus of President, effective tender for the work could be completed in mid-2016.

The route of 511 kilometers from the line will link Rio de Janeiro and São Paulo, Campinas, and have seven stations. The overall cost figure calculated by the Brazilian government was 34.000 billion reais, a million, while the consortia were interested in the project estimated minimum cost of 50,000 million reais million. "

Note: I see that this thread is no updated, imagine that there are messages over HS in thread of conventional rail.

More information, something old, in spanish:

Originally Posted by Gusiluz View Post
Algunas pinceladas sobre el proyecto de LAV brasileña.

En primer lugar el mapa de la futura línea incluyendo la segunda fase entre Campinas y Sao Paulo, un total de 511 km:

Sin embargo, el objeto del concurso es la parte entre Sao Paulo y Rio de Janeiro, que en principio iba a resolverse el 16/12/2010. Entonces decían que: "Esperamos que gran parte de la infraestructura que estamos desarrollando estará lista para los Juegos Olímpicos de 2016: Vivimos en un país con buenas condiciones climáticas, podemos trabajar en tres turnos para completar el trabajo antes de 2016". Así que habrá que esperar a 2020.
Desde entonces el concurso se ha ido aplazando, e incluso en 2012 se mejoraron las condiciones económicas para atraer a los consorcios participantes a una concesión por 40 años.
Se espera conectar las dos principales conurbaciones brasileñas en 1 h 33 m a 300 km/h mientras que actualmente se tardan 6 horas. El volumen esperado es de 35 millones de viajeros al año y el coste de la línea completa (hasta Campinas) se estimaba entonces en 20.000 M €, unos 39 por km.
Un mapa de Brasil para situar la línea:

Y otro de la red ferroviaria de Rio con el engarce de la línea, que será soterrada en algunos tramos:

También habrá un túnel de 24 km entre Guarulhos y Caieiras, en el estado de Sao Paulo.

Parámetros de vía:
—Ancho estándar (allí tienen 1.000 y 1.600 mm)
—Carril 60 Kg. en barra larga soldada
—Traviesas monobloque o bibloque
—Carga por eje 25 t (la vía)
—Velocidad de proyecto 350 km/h
—Electrificación AC 60 hz, tensión sin definir (tensión actual 3 kV)
—Pendiente máxima 35 milésimas (LAV solo para viajeros)
—Distancia ejes vía 4.5 m para 300 km/h (aquí son 4,7 excepto Sevilla con 4,3)
—Longitud andén 500 m (el estándar es de 400 m, excepto China: 450)
Velocidad operación: 300 Km./h., pudiendo ir por vía principal a 350 Km./h, 230 Km./h en túneles y estaciones, 80 Km./h en estaciones y a 100/160 Km./h en apartados. Intervalo de frecuencia mínimo de 3 minutos.
(Aunque no ponga nada, ya tienen instalados 113 km de ERTMS, lo que puede darnos una idea de lo que piensan instalar. Para lo que piden será necesario ETCS 2)

Trenes: carga por eje máxima 17 t. Composiciones de 8 coches (¿no pueden ser 7 o 9?), al menos una tractora en cada extremo (¿tampoco puede ser distribuida?, pues Francia acude con el AGV, así que...). Deben alcanzar al menos 300 Km./h. Se exigen trenes auscultadores.
(Aquí son 17 t y 160 kN de esfuerzo vertical máximo por rueda a 300 km/h).

En 15 días sabremos las candidaturas presentadas.

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