S1 is located within the Jardim Botanico Park, which has no
vehicular influence and may be considered as an urban
background. This park has an area of 39 ha and vegetation
comprising native species, especially those endangered.
S2 and S3 represent roadsides that are located in the Ipiranga
and Bento Goncalves avenues, respectively; they have an
average vehicle flow of 81 and 45 vehicles min–1 (Table 1),
respectively, and 9% and 15% of heavy–duty vehicles (HDVs),
respectively.
S4 and S5 represent traffic intersections (TIs), corresponding to
the intersections of Av. Farrapos with Av. Sertorio and Av. Assis
Brasil with Av. Sertorio, respectively (Figure 1). The average
vehicle flow at these locations is 75 to 99 vehicles min–1, with
16% and 14% of HDVs (Table 1), respectively.
S6 represents a street canyon and is located in the central part
of the city of Porto Alegre, Av. Borges de Medeiros (Figure 1).
This site has an average vehicle flow of 32 vehicles min–1, with
23% of HDVs (Table 1), which mainly represent buses that
arrive from different parts of the city to the downtown area.
Despite the fact that S6 showed lower vehicular flow than the
other sites evaluated, there was still a large circulation of
people.
S1 is located within the Jardim Botanico Park, which has novehicular influence and may be considered as an urbanbackground. This park has an area of 39 ha and vegetationcomprising native species, especially those endangered. S2 and S3 represent roadsides that are located in the Ipirangaand Bento Goncalves avenues, respectively; they have anaverage vehicle flow of 81 and 45 vehicles min–1 (Table 1),respectively, and 9% and 15% of heavy–duty vehicles (HDVs),respectively. S4 and S5 represent traffic intersections (TIs), corresponding tothe intersections of Av. Farrapos with Av. Sertorio and Av. AssisBrasil with Av. Sertorio, respectively (Figure 1). The averagevehicle flow at these locations is 75 to 99 vehicles min–1, with16% and 14% of HDVs (Table 1), respectively. S6 represents a street canyon and is located in the central partof the city of Porto Alegre, Av. Borges de Medeiros (Figure 1).This site has an average vehicle flow of 32 vehicles min–1, with23% of HDVs (Table 1), which mainly represent buses thatarrive from different parts of the city to the downtown area.Despite the fact that S6 showed lower vehicular flow than theother sites evaluated, there was still a large circulation ofpeople.
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