A Model to Calculate the Road User Costs at Work Zones PDF Download
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Author: Jeffery Lynn Memmott
Publisher:
ISBN:
Category : Motor vehicles
Languages : en
Pages : 134
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Book Description
Author: Jeffery Lynn Memmott
Publisher:
ISBN:
Category : Motor vehicles
Languages : en
Pages : 134
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Ghulam H. Bham
Publisher:
ISBN:
Category : Highway capacity
Languages : en
Pages : 56
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Book Description
This report defines a work zone, its capacity, and how it is estimated. The importance of capacity is also mentioned since it is directly used in the calculation of user delay due to a work zone. The impact of delay on user costs is also discussed. A methodology is presented which relates queue delay with ADT. Queue delay due to a work zone is calculated using a plot between time, cumulative volume, and capacity. The area between the curves represents queue delay. Three software packages are evaluated for calculation of user delay and cost due to a work zone. None of them were adequate for calculating delay due to queue formation.
Author:
Publisher:
ISBN:
Category : Road work zones
Languages : en
Pages : 4
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Book Description
Historically, the Ohio Department of Transportation (ODOT) has used QUEWZ to estimate road capacities for proposed lane closures which fall outside of the Permitted Lane Closure Map, as per Policy No. 21-008(P). The resulting capacity is included in the process for predicting queue lengths outlined in Section 640-13.2 of ODOT's Traffic Engineering Manual. QUEWZ is also identified in ODOT's Innovative Contracting Manual to estimate the capacities for calculating road user costs. The current problem is that QUEWZ is not compatible with current versions of Windows and no longer supported by the developer. Therefore, ODOT needs a replacement for QUEWZ. A new queue analysis tool was developed to meet the needs of the ODOT District Work Zone Traffic Managers for conducting queue length analyses. It is based on the 2010 Highway Capacity Manual capacity formulation for short term work zones and estimates the size and length of the queue and the associated delay for up to 24, 1 hour time intervals. A new road user cost tool was also developed, which calculates the travel costs, operating costs and crash costs of roadway construction projects, suitable for establishing monetary incentives for innovative contracting methods. These tools replace the use of QUEWZ and two existing ODOT spreadsheets.
Author: Sam Salem
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 156
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Book Description
Author: Rajagopal S. Arudi
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 88
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Author: United States Department of Transportation
Publisher: CreateSpace
ISBN: 9781508594406
Category : Transportation
Languages : en
Pages : 208
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Book Description
On-site construction activities can result in significant mobility and safety impacts to road users. The presence of work zone can also result in inconvenience to local business and community, noise and environmental impacts. Minimizing the adverse impacts of work zones has become a higher priority especially since the inception of the FHWA Rule on Work Zone Safety and Mobility (23 CFR 630 Subpart J). Work zone road user costs (WZ RUC) provide the economic basis for quantifying these adverse impacts which can then be used for effective decision-making to improve work zone mobility and safety. This report provides practitioners with information on WZ RUC analysis concepts and their applications using case studies drawn from real world projects. WZ RUC primarily refers to monetized components of mobility and safety impacts; increasingly, non-monetary and qualitative components, such as environmental, business, and societal impacts, are being utilized. In this report, each of the monetary components is explored and the computations of these components are illustrated using examples. It presents step-by-step procedures to derive unit costs for monetary components. It lists the cost sources for each cost component as well as the ways to update those using economic indices. It also explores input requirements and various tools available for use in WZ RUC analysis. This report presents the application of both monetary and qualitative components of WZ RUC in MOT alternative analysis using a decision analysis framework. Another key application of WZ RUC is in selecting appropriate project delivery/contracting strategies to minimize WZ RUCs and related impacts through early project completion. Approaches for determining an appropriate level of incentives and disincentives are also discussed. Three “real-world” case studies from the Highways for LIFE program are presented to demonstrate the applications of WZ RUCs in selecting the preferred Maintenance of Traffic (MOT) alternatives and project delivery/contracting strategies.
Author: Richard S. Schnabel
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Book Description
As freeway construction increases with the need to expand, repair and maintain the existing infrastructure, the desire to quantify the inconvenience or delay costs to the user of the freeway undergoing-construction has increased and become necessary to assist in determining total project impact costs and determine penalties or lane rentals to contractors. This paper will review critical variables which impact delay costs, delay avoidance strategies and various methods and models developed to quantifying these costs. Overall, the amount of research specifically in this area is limited as interest is just beginning to rise in quantifying these costs. However, numerous studies have been completed in the past in related areas which will be reviewed for their applicability to this project. State Departments of Transportation need to determine impact costs to develop freeway projects in the most cost effective manner. The methods used in project sequencing, scheduling, and work hours must provide the least impact to the traveling public without incurring excessive costs to the project. Businesses which rely on freeways to deliver their goods and services can be particularly impacted. The inability to deliver goods and services on time begins to have significant impacts in this era where - more companies are shifting to "just-in-time" delivery methods to reduce costs, particularly inventory storage costs. Companies with perishable goods are also at significant risk if these goods cannot be delivered to consumers with sufficient shelf live remaining. - Freeway users not involved in business are also impacted by construction delays. While these costs are much more difficult to quantify, the user definitely experiences frustration and a sense that time is being wasted while waiting to bypass constricted areas on the freeway.
Author: David Leonard Lewis
Publisher: Transportation Research Board
ISBN: 9780309068222
Category : Business & Economics
Languages : en
Pages : 60
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Book Description
This synthesis report will be of interest to transportation agency planners; design, construction, and maintenance engineers; and administrators, managers, economists, and other decisionmakers involved in programming highway pavement projects. This synthesis describes current practice with regard to road user and mitigation costs in highway pavement projects. Information for the synthesis was collected by surveying U.S. and Canadian transportation agencies and by conducting a literature search of both domestic and foreign publications. This report of the Transportation Research Board provides detailed information on the various methods employed by transportation agencies to estimate user costs. The advantages and disadvantages of each are reported. Information on the various components of user costs (that is, time related, vehicle operating, safety, and environmental costs) is also included. In addition, the study reports on the various mitigation strategies available to agencies to reduce user costs. Information is also provided on how user costs and mitigation strategies have been applied to evaluate different alternatives; and how uncertainties, political considerations, and quality control contribute to the decisionmaking process.
Author: E. Nels Burns
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Book Description
