InSAR remote sensing for performance monitoring of transportation infrastructure at the network level

Tasks & Deliverables
Project Reports
Project Team and Partners
Technical Advisory Committee
Project Discussion (Internal)
The main scope of this project is to integrate remote sensing analysis tools into existing decision support systems with the goal of optimizing resources allocation for maintenance and inspection of the transportation infrastructure at the network level. In particular the project focuses on the use of leading edge satellite-based interferometric techniques to provide a proactive rather than a reactive approach towards potentially hazardous phenomena such as subsidence, slope stability and bridge displacement. By building on the acquired knowledge and established experience of the research team, the goal of this project is to extend the approaches previously developed to the network level increasing coverage, including extra features and moving from evaluation to implementation by delivering analysis results within GIS environments such as ESRI ArcGIS Online for organization. The implementation-oriented methodology of this project will not only allow interested DOTs to seamlessly integrate new analysis tools into their existing decision support system (DSS), but also to take advantage of the change in data availability policy, announced by several space agencies (ESA, JaXA, and CSA) that guarantees free access to InSAR data in the near future making State wide analysis a reality.
This project proposes to extend current analysis techniques to include: road subsidence, pavement condition, bridge monitoring, slope stability and sinkhole/subsidence development. Easy analysis of the network level status of the transportation features will be provided in the form of ArcGIS layers indicating, for all bridges and structures within the analysis areas, subsidence rates for the last monitoring period as a green/yellow/red index. A similar approach will be implemented for all major roads where green/yellow/red indicators will be provided for subsidence rates, slope stability index and risk for sinkhole precursors within a selectable buffer zone of a route whereas the results of the pavement analysis will be provided as a change/no-change condition report.
The basic implementation of all these analysis/monitoring tools will be in the form of ArcGIS plugins. Data will be delivered taking advantage of the distribution features offered by the ArcGIS Online for Organization: flexible framework (easy data flow from producer to final user), seamless integration with DOTs (analysis results can be provided as layers), controlled and flexible distribution (data can be distributed to authorized users via several channels such as mobile and web applications), extensibility (local entities can be included to the data distribution and can contribute queries, comments, etc.).
For each of these features, TRE Canada will be responsible for the data acquisition and processing, UVA-VIVA for the development of behavioral and trend-analysis tools and, together with the Virginia department of transportation (VDOT), for the development of risk assessment models. VDOT will also be responsible for the DOT DSS framework implementation, delivery, back-end integration, cost-benefit analysis, the development of training manuals, a full-day short course for hands-on training (delivered at the transportation research board (TRB) and possibly available as web-cast and/or podcast), and on-line help tutorials for implementation of InSAR within ArcGIS.

Field Trips

The purpose of the field trips is to inspect on the ground areas identified by the analysis of InSAR data.
Topic revision: r12 - 11 Jan 2016, AndreaVaccari
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