Pavement Performance-Oriented Network Optimization System

1996 ◽  
Vol 1524 (1) ◽  
pp. 86-93 ◽  
Author(s):  
Fengxian Liu ◽  
Kelvin C. P. Wang
Keyword(s):  
Decision Support ◽  
Network Optimization ◽  
Performance Standards ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Planning Period ◽  
Pavement Condition ◽  
Optimization System ◽  
Performance Requirements ◽  
Annual Budget

The objective of the current network optimization system (NOS) model used by the Arizona Department of Transportation is to minimize the annual cost over the planning period. An NOS model with the objective of maximizing a network's pavement performance is presented. In this performance-oriented NOS, the annual budget is given as a constraint that is distributed evenly over the planning period. This NOS model aims to provide an approach simulating a possible scenario in a state department of transportation by effectively using a given budget in the planning period. At the same time the performance of the pavement network is also maximized. In relation to annual budget and pavement condition, two types of analysis are conducted: in the first analysis, only annual budget is applied as the constraint for this model; in the second, both annual budget and pavement performance requirements are introduced as the constraints. The necessary minimum annual budgets for various pavement performance requirements are compared; using the results, a rational annual budget for the needed pavement performance standards can be obtained, which may be used as decision support data for future budget allocation.

Development of Pavement Performance Curves for Individual Distress Indexes in South Dakota Based on Expert Opinion

1996 ◽  
Vol 1524 (1) ◽  
pp. 130-136 ◽  
Author(s):  
Newton C. Jackson ◽  
Richard Deighton ◽  
David L. Huft
Keyword(s):  
South Dakota ◽  
Expert Opinion ◽  
Pavement Management ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Pavement Management System ◽  
Pavement Condition ◽  
Performance Curves ◽  
Collective Experience ◽  
Work Done

Work done to develop pavement performance curves for use in the enhanced South Dakota Department of Transportation (SDDOT) pavement management system (PMS) is described. Pavement performance curves were developed for various new pavement sections as well as for a range of rehabilitation treatments. The performance curves were developed by using both individual and composite pavement indexes. Because of a lack of sufficient historical data the pavement performance curves could only be developed by using expert opinion. A pavement expert group was established and a questionnaire was developed to quantify their collective experience. The responses were then used to develop quite reasonable pavement performance curves by using individual and composite indexes developed for South Dakota. The resulting pavement performance curves are adequate for the beginning input into the enhanced SDDOT PMS. The pavement performance curves developed should be revised as sufficient historical pavement condition data become available.

North Carolina’s Experience in Development of Pavement Performance Prediction and Modeling

1997 ◽  
Vol 1592 (1) ◽  
pp. 80-88 ◽  
Author(s):  
Paul K. Chan ◽  
Mary C. Oppermann ◽  
Shie-Shin Wu
Keyword(s):  
North Carolina ◽  
Performance Prediction ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Pavement Condition ◽  
North Carolina Department ◽  
Condition Rating ◽  
The North ◽  
Initial Idea ◽  
Pavement Performance Prediction

Development efforts in pavement performance prediction by the North Carolina Department of Transportation are described. Research into other states’ approaches was also conducted. The initial idea was to use family curves. However, because of a lack of data in key areas, it was decided to use an individual section’s pavement condition rating (PCR) data for performance prediction. The process of selection and justification of a functional form for curve fitting is detailed. An adaptive scheme to accommodate a realistic PCR history containing cycles of decline and improvement in the ratings is detailed. Abnormal sections that did not fit the models developed for individual sections were identified. These were either ( a) section with too few datum points for modeling or ( b) sections in which the last few ratings leveled out, resulting in a prediction of an unreasonably long life span. The development of family curves and their application in the processing of abnormal sections are also discussed. The developed models were then evaluated by comparing the predicted rating with the actual rating.

Impact of Blue Force Tracking on Combat Identification Judgments

2012 ◽  
Vol 55 (1) ◽  
pp. 75-89 ◽  
Author(s):  
David J. Bryant ◽  
David G. Smith
Keyword(s):  
Decision Support ◽  
Situation Awareness ◽  
Performance Standards ◽  
Positional Information ◽  
False Alarms ◽  
Time Data ◽  
Position Information ◽  
Person Perspective ◽  
Force Tracking ◽  
Gaming Environment

Objective: We examined the effectiveness of blue force tracking (BFT) decision support for dismounted infantry soldiers. Background: Technologies to support combat identification (CID) are rapidly evolving and may be deployable to dismounted soldiers in the future. BFT systems are designed to mitigate the risk of fratricide by supplying positional information regarding friendly units to enhance situation awareness. Method: Participants played the role of a dismounted infantry soldier in a first-person perspective gaming environment and made engagement decisions for a series of simulated targets, half of which were enemies and half of which were friends. Results: Participants performed better overall when they were able to use a BFT system than when they performed the task without assistance. When a 10-s latency was added to the updating of position information in the BFT, participants made significantly more false alarms (engaged a friendly target) regardless of whether they knew about the latency. Conclusion: The results indicate the promise of a personal BFT device to reduce the likelihood of fratricide by dismounted infantry soldiers. The results, however, also indicate that the effectiveness of such a device can be dramatically reduced when it does not provide real-time data. Application: Potential applications of this research include development of performance standards for BFT devices and assessment of decision support for dismounted soldiers.

Length-Based Vehicle Classification Schemes and Length Bin Boundaries

2013 ◽  
Vol 2339 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Herbert Weinblatt ◽  
Erik Minge ◽  
Scott Petersen
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
The United States ◽  
Traffic Monitoring ◽  
Vehicle Classification ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Classification Schemes ◽  
Weigh In Motion

Vehicle classification data are an important component of traffic-monitoring programs. Although most vehicle classification conducted in the United States is axle based, some applications could be supplemented or replaced by length-based data. The typically higher deployment cost and reliability issues associated with collecting axle-based data as compared with length-based data present a challenge. This paper reports on analyses of alternative length-based vehicle classification schemes and appropriate length bin boundaries. The primary analyses use data from a set of 13 Long-Term Pavement Performance weigh-in-motion sites, all in rural areas; additional analyses are conducted with data from 11 Michigan Department of Transportation weigh-in-motion sites located in rural and small urban areas and one site located in an urbanized area. For most states, the recommended length-based vehicle classification scheme is a four-bin scheme (motorcycles, short, medium, and long) with an optional very long bin recommended for use by states in which significant numbers of longer combination vehicles operate.

VB on the Highway Pavement Performance Prediction and Optimization of Maintenance Programs

2011 ◽  
Vol 90-93 ◽  
pp. 2015-2019
Author(s):  
Pei Feng Cheng ◽  
Qian Qian Zhao
Keyword(s):  
Original Data ◽  
Economic Benefits ◽  
Pavement Performance ◽  
Dynamic Programming Method ◽  
Pavement Condition ◽  
Pavement Maintenance ◽  
Module Prediction ◽  
Evaluation Module ◽  
Pavement Performance Prediction ◽  
Maintenance Plan

Highway maintenance is the main new task after highway construction. In order to predict pavement performance reasonably, and choose the most reasonable maintenance plan, based on investigating and inspecting the pavement condition , use computer language of VB from inputting the data module, establishing evaluation module, maintenance module, prediction module, economic evaluation module and statements processing module of pavement maintenance management system. Put the original data into this system. The system can predict pavement performance and choose maintenance scheme automatically, and use multi-objective optimization model, the effect of the definition and dynamic programming method to optimize the scientific and reasonable maintenance plan, which is from technical and economic aspects to realize by using the limited maintenance funds to achieve the best maintenance effect and to obtain the biggest social and economic benefits.

Superpave Field Implementation: Florida’s Early Experience

1998 ◽  
Vol 1609 (1) ◽  
pp. 51-60 ◽  
Author(s):  
James A. Musselman ◽  
Bouzid Choubane ◽  
Gale C. Page ◽  
Patrick B. Upshaw
Keyword(s):  
Asphalt Pavement ◽  
Early Experience ◽  
Field Application ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Concerted Effort ◽  
The Past ◽  
Early Experiences ◽  
Florida Department ◽  
Current Loading

Over the past 10 to 15 years, Interstate pavements in northern Florida have experienced a significant number of failures, primarily due to rutting. It was believed that the present fine-graded, 50-blow Marshall-designed mixes were inadequate to withstand current loading conditions. The newly developed Superpave system represented an opportunity to address several of Florida’s asphalt pavement problems. Thus, the Florida Department of Transportation made a concerted effort to implement Superpave technology in 1996. During this period, eight projects were changed from the traditional Marshall mix designs to Superpave. Although the new procedure offers potential for improved pavement performance, there has been very little experience nationally with its field application. Florida’s early experiences with the field implementation of Superpave are documented.

Pavement Performance of Foaming Warm Mix Asphalt with RAP

2014 ◽  
Vol 584-586 ◽  
pp. 1066-1070
Author(s):  
Liang Ying Li ◽  
Xiao Long Yang ◽  
Gui Cao
Keyword(s):  
Warm Mix Asphalt ◽  
Gansu Province ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Regulatory Requirements ◽  
Need To Evaluate ◽  
Result Show

Foam-based WMA are the most commonly used techniques. Gansu Department of Transportation recently let its first foaming warm mix asphalt in RAP project in response to need to evaluate the foaming warm mix asphalt technology in RAP and how it correlates with material specific to Gansu Province. Three foaming warm mixtures with RAP were designed. Based on this, Marshall volume indicators and pavement performance were tested and contrasted for three foaming warm mixtures with RAP and corresponding HMA. Foaming warm mixtures with RAP were produced at 130°C-140°C which is lower 10°C-20°C. The result show that 15% to 30% RAP can be added into foaming warm mixtures. Foaming warm mix asphalt technology can reduce 20°C of compaction temperatures compared with HMA. And its pavement performance can meet regulatory requirements.

The Application of Extension Theory on Pavement Performance Evaluation

2010 ◽  
Vol 168-170 ◽  
pp. 111-115
Author(s):  
Cheng Ling ◽  
Lan Zhou ◽  
Fan Gu
Keyword(s):  
Performance Evaluation ◽  
Evaluation Model ◽  
Extension Theory ◽  
Pavement Performance ◽  
Pavement Condition ◽  
Pavement Maintenance ◽  
Model Based ◽  
General Evaluation ◽  
Conservation Plan ◽  
Solid Foundation

Pavement performance evaluation is a reasonable safeguard for the conservation plan and an important basis for investment decisions. In order to obtain a precise and quantitative evaluation result, a general evaluation model based on Extension Theory is established, and a concrete index is raised to indicate the pavement real condition. Practical pavement detection data of Jing-hu highway in Jiangsu Province is used to validate this model. The result shows that the evaluation model based on Extension Theory gives an accurate evaluation on pavement performance, and reflects the pavement condition well. It could provide solid foundation for pavement maintenance orders, and may have a bright future.

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