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Validation and Implementation of the Structural Condition Index (SCI) for Network-level Pavement Evaluation

Validation and Implementation of the Structural Condition Index (SCI) for Network-level Pavement Evaluation PDF Author: Sruthi Peddibhotla
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 107

Book Description


Validation and Implementation of the Structural Condition Index (SCI) for Network-level Pavement Evaluation

Validation and Implementation of the Structural Condition Index (SCI) for Network-level Pavement Evaluation PDF Author: Sruthi Peddibhotla
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 107

Book Description


Implementation of a Network-level Pavement Structural Condition Index Based on Falling Weight Deflectometer Data

Implementation of a Network-level Pavement Structural Condition Index Based on Falling Weight Deflectometer Data PDF Author: Sruthi Sree Sravya Peddibhotla
Publisher:
ISBN:
Category :
Languages : en
Pages : 272

Book Description
The Texas Department of Transportation (TxDOT) uses the Pavement Management Information Systems (PMIS) to store and analyze pavement data, and to summarize information needed to support pavement-related decisions. The information on overall condition of the pavement is stored in PMIS, measured with various scores based on visual distress and ride quality surveys. However, a direct measure of the pavement structural condition is currently not in use. A network-level index that can distinguish pavements that require Preventive Maintenance (PM) from those that require Rehabilitation (Rhb) is required, because, it is not cost-effective to apply PM treatments to pavements that are structurally inadequate. The necessity to use an index to improve pavement treatment selection process, especially under financial constraints has motivated this research. The objective of this research is to validate the pavement Structural Condition Index (SCI) developed under a previous Research Project 0-4322, and to develop guidelines for implementing the SCI at the network level.

Developing a Network-level Structural Capacity Index for Structural Evaluation of Pavements

Developing a Network-level Structural Capacity Index for Structural Evaluation of Pavements PDF Author: James M. Bryce
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 63

Book Description
The objective of this project was to develop a structural index for use in network-level pavement evaluation to facilitate the inclusion of the pavement's structural condition in pavement management applications. The primary goal of network-level pavement management is to provide the best service to the users for the available, often limited, resources. This study developed a flexible pavement structural index to use for network-level pavement applications. Available pavement condition data were used to conduct a sensitivity analysis of the index, and example applications were tested.

Developing a Network-level Structural Capacity Index for Structural Evaluation of Pavements

Developing a Network-level Structural Capacity Index for Structural Evaluation of Pavements PDF Author: James M. Bryce
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 0

Book Description
The objective of this project was to develop a structural index for use in network-level pavement evaluation to facilitate the inclusion of the pavement's structural condition in pavement management applications. The primary goal of network-level pavement management is to provide the best service to the users for the available, often limited, resources. This study developed a flexible pavement structural index to use for network-level pavement applications. Available pavement condition data were used to conduct a sensitivity analysis of the index, and example applications were tested.

Pavement Structural Evaluation at the Network Level

Pavement Structural Evaluation at the Network Level PDF Author: Gonzalo R. Rada
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 264

Book Description
As State transportation departments consider structural adequacy as part of their routine pavement management system (PMS) activities by incorporating deflection testing, it is important to advance their practices from measuring deflection using falling weight deflectometers, which involves a slow, stop-and-go operation and requires lane closures, to a more viable alternative for network-level pavement management applications. The development of moving deflection testing devices that can measure pavement responses at traffic speeds represents this more viable alternative. The modern versions of the moving deflection testing devices that are actively used today include the Traffic Speed Deflectometer (TSD) and a Rolling Wheel Deflectometer (RWD). The goal of this project was to establish a reliable measure of the structural condition of bound pavement layers above the unbound base layer as it deteriorates over time under traffic and environmental loading based on moving pavement deflection technology measuring at traffic speeds. Moreover, this measure needed to be robust enough in capturing the structural condition or deterioration of the pavement layer notwithstanding the seasonal and spatial variation in base and subgrade layers. As part of the project, a literature review was conducted, and questionnaires were developed for device manufacturers, owners, and users, which were then followed up by interviews. Both the TSD and RWD were found to be potentially viable devices. Based on this finding, a work plan was developed and implemented to evaluate if the two devices met a minimum set of specifications related to the structural evaluation of pavements at the network level including accuracy and precision of deflection measurements, monitoring applied load, operating speed, and distance between deflection measurements. Field evaluations and validation analyses were completed in accordance with the work plan. Ultimately, analysis methodologies and processes were developed for incorporating pavement structural information within highway agencies' PMS applications.

Quality Management of Pavement Condition Data Collection

Quality Management of Pavement Condition Data Collection PDF Author: Gerardo W. Flintsch
Publisher: Transportation Research Board
ISBN: 0309142474
Category : Technology & Engineering
Languages : en
Pages : 154

Book Description


Pavement Structural Evaluation at the Network Level

Pavement Structural Evaluation at the Network Level PDF Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 12

Book Description


Distress Identification Manual for the Long-term Pavement Performance Project

Distress Identification Manual for the Long-term Pavement Performance Project PDF Author:
Publisher: Strategic Highway Research Program (Shrp)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 164

Book Description


Network-Level Pavement Deflection Testing and Structural Evaluation

Network-Level Pavement Deflection Testing and Structural Evaluation PDF Author: M. Hossain
Publisher:
ISBN:
Category : Asphalt pavement
Languages : en
Pages : 8

Book Description
Structural evaluation provides valuable information about the expected behavior of pavements and can be very useful at the network level of pavement management for project prioritization purposes. However, due to the expense involved in data collection and analysis, structural capacity is usually not determined at the network level. In Kansas, due to limited resources and the large size of the network (10 971 miles), annual network-level structural data collection at the same rate (five to ten tests per mile) as the project level is not realistic. This study was initiated to determine the sample size (% mileage) at the network level as well as the test intervals and frequency that can be used as guides for network-level deflection testing and structural evaluation of pavements.

Network Level Testing for Pavement Structural Evaluation Using a Rolling Wheel Deflectometer

Network Level Testing for Pavement Structural Evaluation Using a Rolling Wheel Deflectometer PDF Author: Daba S. Gedafa
Publisher:
ISBN:
Category : Pavement temperature
Languages : en
Pages : 10

Book Description
Structural evaluation can be very useful at the network level of pavement management for project prioritization purposes. However, due to expenses involved in data collection and analysis, pavements are not tested for structural capacity at the network level. Rolling wheel deflectometer (RWD), which measures surface deflections at highway speed, is an alternate, faster method of pavement deflection testing for network level data collection. This study was initiated to assess the feasibility of using RWD for network level pavement deflection measurements. RWD deflection data was collected under an 80-kN axle load and at about highway speed on non-interstate highways in northeast Kansas in July 2006. Falling-wheel deflectometer (FWD) data on these roads, collected from 1998 to 2006, were also used for comparison. The computed effective structural numbers from both FWD and RWD deflection data were compared. The results show that the deflections measured by RWD and the center (first sensor) deflections from FWD are statistically similar. The effective structural numbers computed from the FWD and RWD deflection measurements are also statistically similar. Thus RWD appears to be a valuable tool for structural capacity evaluation of pavements at the network level.