01340248

Component

The mistiming of interventions is a critical issue in asset management. A treatment that is applied too early (hastened) or too late (deferred) has consequences in terms of the agency cost, facility performance, and cost-effectiveness. This paper uses basic concepts in costing and effectiveness analysis to develop a methodology for quantifying the consequences of hastening or deferring interventions that are intended to preserve highway assets. A case study involving pavement treatments is presented to demonstrate the practical application of the methodology. The results of the case study suggest that the consequences of hastened or deferred interventions can differ across asset classes as well as across intervention types: the consequent life-cycle cost increases and performance loss are more severe for non-interstate highways compared to interstate highways; and are more severe for maintenance compared to rehabilitation. Recognizing that in the practical world, the timing of interventions need not be at the exact levels prescribed in the earlier section of the paper, the paper goes on to show how an agency could use the developed methodology to establish acceptable ranges of intervention timing. Using the methodology, an agency could introduce flexibility in its preservation schedules by establishing the earliest and the latest times for applying an intervention.

01329018

11-2348

English

20p

2011

Transportation Research Board 90th Annual Meeting

DVD

Figures (6) ; References (20) ; Tables (1)

Asset management; Case studies; Cost effectiveness; Deferred maintenance; Highway maintenance; Life cycle costing; Maintenance; Pavement performance; Preservation; Surface treating

Interventions; Timing

Highways; Maintenance and Preservation; Pavements; Planning and Forecasting; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2011 Paper #11-2348

TRIS, TRB

Feb 17 2011 6:08PM