Abstract
The Brazilian law N° 12.587/12 on urban mobility, currently in effect, aims to ensure the improvement of accessibility, and the trafficability of people and cargo in cities, as well as integrate transport modes, and study mechanisms for infrastructure management. Cities with a population of more than 20,000 had to create their urban mobility plans, according to the requirements of the Ministry of the City. The objective of the plan is to conceive projects that aim to mitigate operational and functional problems in the transportation network within the municipalities. One of these cities that is creating a mobility plan is Anápolis-GO, where its plan includes the implementation of bus lanes on the main avenues of the municipality. In these corridors, there was the substitution of the flexible pavement by slabs of PCC (Portland cement concrete), at the boarding and alighting points, due to the sudden braking events and occasional acceleration. Given this scenario, the study aimed to analyze the stopping distance at these locations, as a function of road speed and braking rate, to assess whether the length of these slabs would be sufficient to what was proposed. In addition, it was sought to monitor the pavement against the performance of the PCC slabs, given the incident loads of braking and acceleration, as well as the performance of the flexible pavement, predicting the possible consequences and/or pathologies that may occur due to the operation, since the existing traffic in the corridors should be compatible with that of a high-speed road.
Highlights
With the accelerated growth of cities, linked to the constant increase in population and the country's car fleet, it was observed that several cities did not have adequate urban planning, so the Ministry of Cities in Brazil realized the need for a policy dealing with urban mobility within municipalities
The six corridors will be considered as case studies, since they operate in two lanes whose speeds in the different routes differ according to their classification: - Brazil South- DAIA Avenue with a speed limit of 60km/h; - Brazil North Avenue with a speed limit of 60km/h; - Pedro Ludovico Avenue with a speed limit of 60km/h; - San Francisco Avenue-JK with a speed limit of 40 km/h; - Fernando Costa Avenue- President Kennedy with a speed limit of 40km/h; - And, University Avenue with a speed limit of 40 km/h
Due to the occasional braking and acceleration events, and because it is a rigid material, whose module is high, it was seen that the PCC slabs would be the most appropriate, in terms of the dimensions and total extension of the slabs groups, there was carelessness on the part of the designers, which to a certain extent puts the functionality of the structure into compromise
Summary
With the accelerated growth of cities, linked to the constant increase in population and the country's car fleet, it was observed that several cities did not have adequate urban planning, so the Ministry of Cities in Brazil realized the need for a policy dealing with urban mobility within municipalities. Since according to Vieira et al, (2021), mobility depends on the level of adequacy between personal characteristics or the object you want to transport, with the capacity and conditions of the transportation system and the condition of the infrastructure, including here all possible types of trips. Through this new determination of the Ministry of Cities, the Anapolis City began its urban mobility plan whose objective would be a greater fluidity of traffic of vehicles and people in the city with the modification of several aspects in the urban scenario, among them the construction of infrastructure works and bus corridors.
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