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Analysis of Historic pavement and Bridge Conditions and Alternative Funding Levels for the Michigan Department of Transportation

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Journal of Traffic and Transportation Engineering 2024年第3期12卷 107-118页

作者： William Robert Spy Pond Partners LLCArlingtonMA 02474USA

In 1997 the Michigan Department of Transportation (MDOT) established an ambitious set of condition targets for its pavements and bridges, and the Department received increased revenue from a 4-cent-per-gallon increase in the state motor fuels tax to help meet its targets. However, over time, actual revenue was less than both what was initially estimated as needed to meet the targets and what was projected from the tax increase. Consequently, actual conditions were projected to fall short of the target levels, so the department issued bonds to address the shortfall through 2012. To support deliberations on future funding, in 2013 MDOT performed an analysis of historic conditions to determine what additional fuel tax revenues would have been required beginning in 1997 to: replace bond revenues used to fund pavement and bridge projects from 1997 to 2012;and enable MDOT to meet its condition targets. The analysis was performed using data on actual pavement and bridge funding and conditions;as well as predicted funding and conditions for different hypothetical increases in fuel taxes. The analysis concluded that, in addition to the actual increase of 4 cents per gallon, a fuel tax increase of another 10 cents per gallon would have been required in 1997 to replace bond revenue used for pavement and bridges and allow MDOT to meet its condition targets. The analysis results were used to help inform the discussion of Michigan’s target asset conditions and funding, and demonstrate application of MDOT’s pavement and bridge management systems for performing historic analyses.

关键词： Transportation asset management transportation finance performance measures pavement management bridge management

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Multi-objective optimization in highway pavement maintenance and rehabilitation project selection and scheduling:A state-of-the-art review

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道路工程学报(英文) 2023年第3期3卷 239-251页

作者： Mohammadhosein Pourgholamali Samuel Labi Kumares C.Sinha Lyles School of Civil Engineering Purdue UniversityWest LafayetteIN 47907USA

The motivation for cost-effective management of highway pavements is evidenced not only by the massive expenditures associated with these activities at a national level but also by the consequences of poor pavement condition on road users.This paper presents a state-of-the-art review of multi-objective optimization(MOO)problems that have been formulated and solution techniques that have been used in selecting and scheduling highway pavement rehabilitation and maintenance activities.First,the paper presents a taxonomy and hierarchy for these activities,the role of funding sources,and levels of jurisdiction.The paper then describes how three different decision mechanisms have been used in past research and practice for project selection and scheduling(historical practices,expert opinion,and explicit mathematical optimization)and identifies the pros and cons of each mechanism.The paper then focuses on the optimization mechanism and presents the types of optimization problems,formulations,and objectives that have been used in the literature.Next,the paper examines various solution algorithms and discusses issues related to their implementation.Finally,the paper identifies some barriers to implementing multi-objective optimization in selecting and scheduling highway pavement rehabilitation and maintenance activities,and makes recommendations to overcome some of these barriers.

关键词： Multi-objective optimization Highway pavement Rehabilitation Maintenance Project selection Project scheduling Decision mechanism pavement management

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国家计委决定提高煤矿专用铁路、铁路专用线收费标准

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中国物价 1997年第1期 35-35页

国家计委决定提高煤矿专用铁路、铁路专用线收费标准鉴于近年来燃料、原材料价格上涨较多，运输成本逐年提高，致使矿区铁路运营亏损严重的实际情况，为缓解企业困难，保证煤炭专用铁路正常安全运行，国家计委于１９９６年１２月４日发... 详细信息

国家计委决定提高煤矿专用铁路、铁路专用线收费标准鉴于近年来燃料、原材料价格上涨较多，运输成本逐年提高，致使矿区铁路运营亏损严重的实际情况，为缓解企业困难，保证煤炭专用铁路正常安全运行，国家计委于１９９６年１２月４日发文，决定提高煤矿专用铁路、铁路专用...

关键词： pavement management computer software data collection expenses

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