BRTs of Porto Alegre - Brazil - receives concrete plates to speed up local traffic
The New BRT of Porto Alegre
The bus corridors along avenues Bento Gonçalves and Protásio Alves in Porto Alegre are being renovated in such a way as to reformulate public transportation in the capital to include BRT (Bus Rapid Transit). The goal is to increase mobility for the population, as well as prepare the city for the 2014 World Cup.
Concrete Instead Asphalt
The company responsible for the work, Conpasul, in a consortium with Sultepa, chose a Wirtgen W 100F milling machine to remove the asphalt from the lane that will receive the concrete.
Replacing the pavement on the stretches will play an important role in improving bus circulation. “Concrete is more durable and less susceptible to irregularities, which reduces wear and allows the vehicles to go faster,” explained Nilton Scapin, director-president of Conpasul. By making public transportation more agile, BRTs serve to reduce the region’s intense traffic congestion. “The goal is to make public transpor- tation more attractive to the population, making it faster and improving urban mobility,” added Scapin.
Infrastructure for the World Cup
The renovations are part of a project by the city, state and federal governments aiming to improve the city’s infrastructure to host the World Cup. The avenues connect the city’s neighborhoods to the downtown area and provide access to Beira-Rio Stadium, which will be one of the tournament’s host venues.
With the sporting event fast approaching, the company needed to make choices to speed up progress on work. “When we choose our equipment, we pay close attention to their cost-benefit ratio and deadlines. We are always on the lookout for equipment that can help us finish faster, aside from lowering costs and being reliable. Wirtgen Corporation equipment meets all these requirements,” said Scapin.
According to Conpasul, the Wirtgen W100F milling machine has a daily production rate of 1,600 m2. By September of 2012, 11,000 m2 had already been milled on the Bento Gonçalves Avenue BRT and 10,000m² on the Protásio Avenue BRT. The total length of the BRTs is 6,540 meters and 7,140 meters, respectively.
The choice to mill
The choice to mill was made on account of the practicality it offers. The alternative to this method would have been cutting with a saw followed by hydraulic backhoe removal, a low productivity method that results in a poor quality finish.
The main obstacle for completing this work is that it is being done in a completely urban neighborhood. This limits the equipment’s production capacity, requires intraurban transport for the equipment and space for parking it when it’s out of operation.