Bridge Management Enhancements

Overview

The State of Maine has been a Deighton client and user of dTIMS software since 1990 when the application was first implemented as a state level pavement management system. The Maine highway network maintained in dTIMS is comprised of approximately 7,600 miles of paved highways and 2,700 bridges.

The Project

This project was awarded to Deighton to assist in the adoption of new strategic policies as analysis parameters within their existing dTIMS analysis setup. The policy changes introduced a Customer Service Level (CSL) based corridor analysis to the traditional condition based analysis that Maine DOT used in dTIMS.

As part of this project, Maine DOT wished to incorporate element level bridge data into dTIMS that would include five element groups: Culvert, Deck, Superstructure, Substructure, and Joints.

The project included the following tasks:

• Define and load bridge element level table
• Define and load bridge table
• Define transformations for element level data to element group data
• Define key performance indicators: RSL, CSL, SD, bridge condition
• Define analysis variables for bridge deterioration
• Create transition probability deterioration models in dTIMS
• Create transition probability deterioration models in dTIMS
• Define treatment properties for bridges (triggers, costs, resets)
• Run analysis and test parameters
• Set up a Level of Service (LOS) analysis (Bridges)

Deliverable

The project demonstrated the flexibility and robustness of the dTIMS solution, that provides system sustainability to a long-term client. This project did not involve any software coding changes to adopt the new CSL management policies that were being requested by Maine DOT.