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Title:

Multiperiod Bridge Investment Optimization Utilizing Pontis Results and Budget Constraints by Work Type
Cover of Multiperiod Bridge Investment Optimization Utilizing Pontis Results and Budget Constraints by Work Type

Accession Number:

01137501

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

One use for a bridge management system (BMS) is to optimize allocation of funds and predict future conditions given a set of funding constraints. The Virginia Department of Transportation (VDOT) uses the American Association of State Highway and Transportation Officials (AASHTO) Pontis BMS for this purpose. A critical limitation VDOT has encountered in using Pontis is that the system offers no functionality for specifying the budget by work type when performing a program simulation. This paper describes an approach developed by Cambridge Systematics for VDOT for using results generated by Pontis to optimize bridge investments over a ten-year period considering budget constraints by year for each of five work types. The approach entails performing a series of Pontis simulation runs as a one-time or occasional step, and then performing a secondary optimization with work type constraints. Two VDOT-owned systems have been developed to support the approach described here. The VDOT Pontis Robot connects to the VDOT Pontis database and performs a series of eleven Pontis simulations. Once the VDOT Pontis Robot has been run, then the VDOT Post-Pontis Optimizer can be used to optimize bridge investments for one or all VDOT districts. Performing an optimization requires approximately 5 seconds. While the approach described here leverages the Pontis BMS, it nonetheless represents a significant improvement to Pontis through implementing multi-period optimization, budget constraints by work type, and real-time generation of budget optimization results.

Monograph Accession #:

01120148

Report/Paper Numbers:

09-2853

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Robert, William E
Gurenich, Dmitry I
Thompson, Richard E

Pagination:

12p

Publication Date:

2009

Conference:

Transportation Research Board 88th Annual Meeting

Location: Washington DC, United States
Date: 2009-1-11 to 2009-1-15
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures (4) ; References (10) ; Tables (2)

Subject Areas:

Data and Information Technology; Highways; I10: Economics and Administration

Source Data:

Transportation Research Board Annual Meeting 2009 Paper #09-2853

Files:

BTRIS, PRP, TRIS, TRB

Created Date:

Jan 30 2009 7:13PM