Pdf life cycle cost analysis for optimal pavement design. The analysis period should include reconstruction if that is a common occurrence for either pavement type. Mechanisticempirical pavement design guide mepdg is used to predict pavement performance and service life. The analysis enables total cost comparison of competing design alternatives with equivalent benefits. There is usually not a single design that meets the design criteria but a number of alternative designs that can be considered as viable solutions.
A lifecycle cost approach of recycled materials in. A pavement design strategy is the combination of initial pavement design and necessary supporting maintenance and. Life cycle cost analysis, pavement design, pavement. Life cycle cost analysis lcca is an economic evaluation technique that determines the total cost of owning and operating a facility over period of time. Dp115 is a free 2day workshop that demonstrates goodbest practices in performing lifecycle cost analyses for pavement design. Pdf life cycle cost analysis for pavement type selection. Life cycle cost analysis lcca is performed by transportation agencies in the design phase of transportation projects in order to be able to implement more economical strategies, to support decision processes in pavement type selection flexible or rigid and also to assess the.
Ovirisensitivity analysis on flexible roads pavement life cycle cost model. Application of probabilistic life cycle cost analysis in pavement. Jul 01, 2014 700 life cycle cost analysis july 2014 7001 700 lifecycle cost analysis 701 introduction lifecycle cost analysis lcca is a process for evaluating the economic worth of a pavement segment by analyzing initial costs and discounted future costs such as surface treatment, resurfacing, rehabilitation, and reconstruction costs over a defined. The current txdot pavement manual states a 20year design life for flexible pavements and 30year for rigid pavements.
Life cycle cost analysis for indot pavement design procedures. Chapter 4 lifecycle cost analysis guide for pavement. Assume the income to be same as that of flexible pavement. Lcca is a process used by the cdot to compare concrete to asphalt pavements, andor compare alternative rehabilitation techniques. As previously noted, a pavement design report is required for all local road projects receiving state or federal funds, regardless of the structural design or the pavement type selection method used. The lcca process is performed by summing up the discounted monetary equivalency of all benefits and costs that are expected to be incurred in each option. Despite the fact that it considers a design period of 20 years for flexible pavements, the portuguese manual of pavement structures states the importance of making a lifecycle cost analysis lcca.
Aug 01, 20 manual 2004 and lcca technical bulletin 1998, lifecycle cost analysis in pavement design, and the lifecycle cost analysis primer 2002. Life cycle cost analysis of portland cement concrete. Life cycle cost analysis lcca is performed by transportation agencies in the design phase of. Mar 28, 2012 lifecycle cost analysis in pavement design, fhwa sa98079 1998 lifecycle cost analysis revisited, m. This interim technical bulletin recommends procedures for conducting life cycle cost analysis lcca of pavements, provides detailed procedures to. Lifecycle cost analysis life cycle cost analysis lcca an economic analysis tool useful in comparing the relative economic merits of competing construction and rehabilitation design alternatives for a single project. Life cycle cost analysis of asphalt and concrete pavements. Life cycle cost analysis can be performed on large and small buildings or on isolated building systems.
Then, through simulation, output cost is expressed as ranges of values, also with probabilities of occurrence. The bulletinwill be of interest to state highway agency personnel. The analysis neglects the initial construction cost at 73% of the construction cost of the per contribution of the asphalt concrete modulus on fatigue life and petual pavement. A more comprehensive life cycle cost analysis of pavement. Lcca effectiveness in pavement design, maintenance and rehabilitation. The analysis period is the number of years over which the pavement lifecycle analysis is conducted. Evaluation of pavement life cycle cost analysis iowa state. The result is a pavement design where the life cycle cost analysis and life cycle assessment results are. A life cycle cost analysis of rigid pavements conducted for the texas department of transportation in cooperation with the u.
This comparison will be further examined through a life cycle cost analysis lcca using the recommended values for the province of. Life cycle cost analysis for pavement type selection. Life cycle cost analysis for pavement selection 3 with a probabilistic approach, input values to the analysis are defined as a range of values and their probability of occurrence. Four flexible pavement design features were selected to test the degree. Maintenance, pavement rehabilitation, agency cost, user costs.
An economic analysis process known as lifecycle cost analysis lcca is used to evaluate the costefficiency of alternatives based on the net present value. Chapter 4 lifecycle cost analysis guide for pavementtype. For example, in the 1986 aashto guide for the design of pavement structures, the use of lcca was encouraged and a process laid out to evaluate the cost effectiveness of alternative designs aas 86. Predictive models for pavement treatment timings utilizing decision tree analysis trb paper 4983. Lifecycle cost analysis the national center for pavement. Pdf evaluation of pavement life cycle cost analysis.
Trbs national cooperative highway research program nchrp report 703. Agencies have historically used some form of life cycle cost analysis lcca to assist in the evaluation of alternative pavement design strategies. Technical bulletinpresents generic concepts that may be applied to areas other than pavements. Jan mikolaj, lubos remeklife cycle cost analysis integral part of road network management system fhwas life cycle cost analysis primer. The conduct of life cycle cost analysis lcca for airport pavement projects in the us civil arena is governed primarily by federal aviation administration faa order 5100. Application to an airport pavement timothy heuvinck1 1m.
This report describes a life cycle cost analysis lcca for road pavements and evaluates its impact on pavement type choice. For these and other reasons, the use of a perpetual pavement design on runways could be a suitable cost effective option, and perhaps, solution. Pavements life cycle cost analysis lcca a life cycle cost analysis lcca is an analysis methodology that enables engineers, designers, and decisionmakers to better understand the economic impacts of infrastructure decisions over time along with the opportunities that exist to reduce impacts. Probabilistic lcca is also used to evaluate design alternatives of the same material, for ex. The analysis period should include the initial pavement cost and the cost of at least one subsequent rehabilitation. Facilities development manual wisconsin department of. Lowest life cycle cost pavement type by section life cycle cost within 10% of the low value is generally considered equal and is within the expected variability of costs used in the analysis. The commissioner shall document the chosen pavement strategy and, if the lowest life cycle is not selected, document the justification for the chosen strategy. Federal highway administration office of asset management.
Approaches for pavement lifecycle cost analysis have been developed in the last few decades by various or ganisations, agencies and o ther intu iti ons. The primary purpose of an lcca is to quantify the implications of initial pavement design decisions regarding the future costs of maintenance and rehabilitation. A lifecycle cost analysis is required for projects to be constructe d after july 1, 2011. Lifecycle cost analysis lcca is an analytical framework to assess the most economically prudent investment from a set of alternatives. Popular back in the 50s, 60s and 70s when the tollway was originally built. In this study, a comprehensive life cycle cost analysis framework was developed and used to quantify the initial and the future cost of 25 representative design alternatives. In the construction or rehabilitation investments of highways pavements it is already common to.
The department shall design and award paving projects utilizing material having the lowest life cycle. The vice provost for land and buildings convened a team of staff from departments within land and buildings, along. Lifecycle costs shall be considered in aip procurement where specified in bidding. Life cycle cost analysis of asphalt and concrete pavements final. In this approach, for a given pavement strategy, sample input values c h a p t e r 4 lifecycle cost analysis are randomly drawn from the defined frequency distributions, and the selected values are used to compute one forecasted lifecycle cost value. A 50 year analysis cycle was used to compute the cost effectiveness ratio for the design methods.
Lcca accounts for relevant costs to the sponsoring agency, owner, operator of the facility, and the roadway user that will occur throughout the life of an alternative. Analysis periods used in lcca should be long enough to capture long term differences in discounted life cycle costs among competing alternatives. As such, it is important for each agency to conduct a realistic. Life cycle costs for asphaltrubber paving materials. For projects to be constructed prior to july 1, 2011, when feasible, the department will use its best efforts to perform lifecycle cost. American association of state highway and transportation officials recommends establishing the. The lcca methodology developed here is tested on a hypothetical. Caltrans utilizes lifecycle cost analysis lcca to study the pavement investment. To determine the longterm cost effects of recycled materials in pavement design, a manual lifecycle cost analysis is implemented to three roadway alternatives. This interim technical bulletin recommends procedures for conducting lifecycle cost analysis lcca of pavements, provides detailed procedures to determine work zone user costs, and introduces a probabilistic approach to account for the uncertainty associated with lcca inputs. Realistic lifecycle cost analysis using typical sequential patterns of pavement treatments via association analysis trb paper 123390 2. Life cycle cost analysis of portland cement concrete pavements by william james wilde, steve waalkes, and rob harrison research report 017391 research study 01739 research study title.
Life cycle cost analysis lcca is performed by transportation agencies in the design phase. Life cycle cost analysis lcca introduction the shrp2 r23 guidelines provide a number of possible alternative designs using either rigid of flexible pavements. Oct 20, 2010 lifecycle cost analysis in pavement design created date. Designing sustainable concrete pavements using the. An economic analysis process known as life cycle cost analysis lcca is used to evaluate the costefficiency of alternatives based on the net. Life cycle cost analysis lcca is performed by transportation agencies in the design phase of transportation projects in order to be able to implement more economical strategies, to support decision processes in pavement type selection flexible or rigid. Nowadays, highway pavement construction, maintenance and rehabilitation costs are rising dramatically. The rigid pavement life cycle cost analysis rplcca computer program was. Lifecycle cost analysis in pavement design federal highway. If a change in pavement design alters the pavement design life or other.
The pavement manual has been revised to include a final version of the life cycle cost analysis guide comparing flexible to rigid pavements. Typically, the analysis period should go beyond the design life for all alternatives to reflect longterm cost differences. Option b required a detailed methodology and included a portland cement concrete pavement pccp design and construction plan. Life cycle cost analysis lcca is an indispensable technique that employs wellestablished principles of economic analyses to evaluate longterm performance of competing investment options. Perpetual pavement analysis yawhg heinal4 5 mile project 50 year analysis 20,000 aadt initial 2sk%0c tur 2htw%o gr alternative 1 conventional design 8 hma. An economic analysis process known as life cycle cost analysis lcca is used to evaluate the costefficiency of alternatives based on the net present value. For example, the irr is the preferred economic indicator when projects. Authors geoffrey lamptey, muhammad ahmad, samuel labi and kumares sinha 8. Lifecycle costbased pavement preservation treatment design. This workshop is available, upon request, to state highway agencies.
Lifecycle cost analysis in pavement design created date. Effectivess of using geotextiles in flexible pavements. A lifecycle cost analysis is required for projects to be constructed after july 1, 2011. For example, what is the initial investment for the highway. Life cycle cost analysis and discount rate on pavements for the. The chapter covering flexible pavement design has been rewritten and simplified to clarify several sections. The analysis period should be at least 50 years in comparing new pavements. It can assist pavement managers in determining the right treatment. Expenditure diagram for pavement life cycle cost analysis. It is essential for highway agencies to utilise tools and approaches that facilitate proper decisionmaking by applying economics and operations research such as lifecycle cost analysis lcca to achieve economically reasonable longterm investments. Lcca is a process used by the cdot to compare concrete to asphalt pavements, andor.
Many building owners apply the principles of life cycle cost analysis in decisions they. The rigid pavement life cycle cost analysis rplcca computer program was developed to implement the new framework. The additional tables, figures, and other resources included in this manual are specifically developed for projects in the state. The weightinmotion wim data of interstate highway 78 and new jersey state highway 55 is processed and used for. The pavement manual has been revised to include a link to a life cycle cost analysis guide comparing flexible to rigid pavements. Highway materials march 2011 lifecycle cost analysis in pavement design pdf 1. Working from literature, historical data and interviews, the lcca technique is described and an overview of the road and street system in iceland is presented. Pdf lifecycle cost analysis system for pavement management. Ncat report 1903 best practices for determining life. A 40year analysis period should be used for this analysis.
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