01764427

Component

https://annualmeeting.myt...nlineProgram/Details/15433

State departments of transportation (state DOTs) are required to comply with the transportation asset management plan and performance-based planning requirements of the Moving Ahead for Progress in the 21st Century Act. An element-based multi-objective optimization (EB-MOO) methodology was developed as part of this research to support state DOTs with this effort and facilitate their decision-making process. The methodology focuses on one transportation asset class (i.e., bridges) and consists of five modules: (1) data processing, (2) improvement, (3) element-level optimization, (4) bridge-level optimization, and (5) network-level optimization. This paper details the improvement module, specifically: the basic framework of the improvement module to visualize the different underlying processes and concepts, the integrated screening process to focus on potential deficient elements, and the novel simulation arrangement to generate realistic (“real-life”) life-cycle (LC) alternatives for three improvement types (i.e., maintenance, repair, and rehabilitation; functional improvement; and replacement). The improvement module relies on a hybrid deterioration to predict element conditions, and life-cycle cost (LCC) model to estimate LCCs and LCC benefits. A tool prototype was developed to implement the different modules of the EB-MOO methodology. The implementation proved the capability of the improvement module in producing reliable LC alternative results—the tool successfully identified potential deficient elements, generated LC alternatives, determined LCCs and LCC benefits, and predicted performance. The recommendation of optimal or near-optimal combinations of LC alternatives takes place in the optimization modules for consideration in the bridge programming and planning process.

This paper was sponsored by TRB committee AJE30 Standing Committee on Transportation Asset Management.

TRBAM-21-01024

English

0000-0002-9535-4201

0000-0002-9474-4937

0000-0003-0514-1075

25p

2021

Transportation Research Board 100th Annual Meeting

Digital/other

Figures; References; Tables

Asset management; Bridges; Decision making; Improvements; Life cycle costing; Optimization; Programming (Planning); State departments of transportation

Moving Ahead for Progress in the 21st Century Act (MAP-21)

Administration and Management; Bridges and other structures; Highways; Maintenance and Preservation

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-01024

TRIS, TRB, ATRI

Dec 23 2020 11:05AM