Dissertação
Proposta de estruturação de um banco de dados e de critérios de priorização para manutenção do sistema viário urbano – SGPU: estudo de caso de Santa Maria - RS
Autor
Martins, Márcio da Fonseca
Institución
Resumen
Due to poor conditions in the asphaltic pavements of the municipality of Santa MariaRS and discontent of population with this situation, the municipal prefecture has shown
interest in developing and, in the future, to implement a Urban Pavement Management
Systems (UPMS). In this context, the present work sought to elaborate a proposal for
structuring a database and prioritization criteria for the maintenance of the Santa
Maria-RS urban road system, aiming at the implementation of an UPMS. For this, some
steps were taken: definition and characterization of the study area (11 central urban
roads); field surveys (traffic counting, survey of pavement defects by means of
Continuous Visual Survey – LVC, survey of pavement irregularity using laser inertial
profilometer, survey of pavement structural parameters – maximum deflection and
radius of curvature –, using Benkelman beam); structuring of the database; elaboration
of the traffic diagnosis and the condition of the pavements; proposing a catalog of
maintenance solutions and indicating solutions; solutions; standardization of the
structured database; proposition of the mathematical model to calculate the Priority
Index (PI); creation of prioritization and application scenarios in the standard database;
calculation and ranking of IP in each scenario; and, finally, ranking of the sub-brands
in each scenario. From the point of view of the diagnosis of the area of study, the lowest
NUSACE was registered in Av. Presidente Vargas, towards downtown neighborhood
and the largest, at Av. Hélvio Basso, towards downtown. The lowest unidirectional
VDM was recorded at Av. João Luiz Pozzobon, towards the center-neighborhood and
the largest, at Av. Nossa Senhora Medianeira, towards the center-neighborhood. The
ATR in 100% of the floors of the study area was below 10 mm. The best condition of
the pavement surface was recorded at Av. Liberdade, neighborhood-center, double
lane. The worst condition of the pavement surface was recorded at Av. Governador
Walter Jobim, in the neighborhood-center direction. The RC in 77 % of the floors of the
study area was greater than 100 meters. The best condition of the pavement structure
was registered in Av. Liberdade, direction neighborhood-center, double track. The
worst condition of the pavement structure was recorded at Av. Ângelo Bolson, towards
downtown. The total value of the solutions was R$ 18.363.546,54. The most expensive
route was Av. Governador Walter Jobim and the least expensive, Av. Hélvio Basso.
The mathematical model for PI calculation proposed, since it is a simplified and easily
understood model, if it is effectively put into practice, can help in the management, at
the network level, of the Santa Maria-RS pavements, allowing not only more rational
decision making by managers, as well as the optimization of public resources. The
best PI predictor was IGGE, followed by D0 corrected, ATR and IRI.