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Articles 301 - 330 of 1127
Full-Text Articles in Civil Engineering
Field Implementation Of Bioremediation At Indot Facilities-Phase I, Loring F. Nies, Brett Robert Baldwin, Matthew B. Mesarch
Field Implementation Of Bioremediation At Indot Facilities-Phase I, Loring F. Nies, Brett Robert Baldwin, Matthew B. Mesarch
JTRP Technical Reports
Bioremediation is often the most cost-effective and successful technique available for the remediation of soils and groundwater contaminated with organic pollutants (e.g. petroleum). The goal of bioremediation is to stimulate naturally occurring microorganisms to biodegrade the contaminants to harmless products. To be in compliance with EPA regulations all underground fuel storage tanks must have spill, leak and corrosion protection. Many older obsolete tanks had deteriorated to the extent that petroleum products had leaked into the environment. In the past, petroleum contaminated soils were typically excavated, followed by landfilling of the contaminated material. The continued use of landfills for disposal of …
Optical Imaging Method For Bridge Painting Maintenance And Inspection, Luh M. Chang, Yasser Abdelrazig, Po-Han Chen
Optical Imaging Method For Bridge Painting Maintenance And Inspection, Luh M. Chang, Yasser Abdelrazig, Po-Han Chen
JTRP Technical Reports
The term "quality" is defined as the conformance to predetermined requirements or specifications. These requirements may be set in terms of the end result required or as a detailed description of how work should be executed. Recently, there has been increasing interest in quality assurance in the construction industry. Quality assurance includes design and planning, sampling, inspection, testing, and assessment to ensure that end products perform according to specifications. This research proposes a new quality assessment model for highway steel bridges and more specifically for coating rust assessment. The research proposes a hybrid model using image processing and neural networks …
Optimal Design Of Freeway Incident Response Systems, Raktim Pal, Kumares C. Sinha
Optimal Design Of Freeway Incident Response Systems, Raktim Pal, Kumares C. Sinha
JTRP Technical Reports
Several states have introduced service patrol programs to curb the growing adverse impacts of freeway incidents. An efficient patrol program configuration design is needed to ensure appropriate resource allocation. This research seeks to devise a scheme for determining optimally such system characteristics as hours of operation, fleet and crew sizes, dispatching policies, areas of operation, and routing patterns, so that the efficacy of the program is maximized. The interaction of randomly occurring incidents with time-varying traffic adds to the complexity of the problem. The problem is solved using dynamic simulation approaches combined with optimization techniques to incorporate the non-linear impact …
Performance Of Bridge Decks And Girders With Lightweight Aggregate Concrete, J. A. Ramirez, J. Olek, Eric Joseph Rolle, Brian J. Manlone
Performance Of Bridge Decks And Girders With Lightweight Aggregate Concrete, J. A. Ramirez, J. Olek, Eric Joseph Rolle, Brian J. Manlone
JTRP Technical Reports
Structural lightweight concrete is a very versatile material and Haydite and Minergy lightweight aggregates can be utilized in the mixture development of concrete for use in girders and decks in bridges. More widespread use of lightweight aggregates (LWA) would result in savings in construction cost due to considerable dead load reduction. The materials phase of this research study evaluated the fresh concrete properties (slump, unit weight, and air content), the mechanical properties of hardened concrete (compressive strength, tensile strength, flexural strength, static and dynamic modulus of elasticity, Poisson’s Ratio, and temperature development), and durability related parameters (air void distribution, freeze-thaw …
Providing Real-Time Traffic Advisory And Route Guidance To Manage Borman Incidents On-Line Using The Hoosier Helper Program, Srinivas Peeta, Jorge L. Ramos, Shyam Gedela
Providing Real-Time Traffic Advisory And Route Guidance To Manage Borman Incidents On-Line Using The Hoosier Helper Program, Srinivas Peeta, Jorge L. Ramos, Shyam Gedela
JTRP Technical Reports
This study addresses the issue of whether the message content of variable message signs (VMS) can be used as a control variable to favorably influence traffic conditions in real-time. The focus is on the level of detail of information displayed on the VMS, and not human factor issues. It implies an understanding of driver sensitivity to information content. Also, for real-time implementation, the displayed information should be consistent, timely, and reliable. A framework is developed for optimizing system performance under incidents using the VMS message content as the primary control parameter. It consists of: (i) an efficient control strategy to …
Second Phase Study Of Changes In In-Service Asphalt (Vol 1: Main Report), Khaled A. Galal, Thomas D. White, Adam J. Hand
Second Phase Study Of Changes In In-Service Asphalt (Vol 1: Main Report), Khaled A. Galal, Thomas D. White, Adam J. Hand
JTRP Technical Reports
In response to the need to improve asphalt pavement performance, the Strategic Highway Research Program (SHRP) was initiated in 1987. Products from SHRP included performance-based specifications for asphalt binders and performance-based mix design tests and criteria for asphalt mixtures. The Superpave asphalt binder specification addresses performance of in-service pavements for given environmental and traffic conditions. During the 1985 paving season in Indiana, the original asphalt binder and HMA (truck mix samples) from a number of pavements were sampled and retained. Cores were also taken from these pavements after seven or eight years of service. Condition surveys were performed on these …
Second Phase Study Of Changes In In-Service Asphalt (Vol 2: Appendices), Khaled A. Galal, Thomas D. White, Adam J. Hand
Second Phase Study Of Changes In In-Service Asphalt (Vol 2: Appendices), Khaled A. Galal, Thomas D. White, Adam J. Hand
JTRP Technical Reports
In response to the need to improve asphalt pavement performance, the Strategic Highway Research Program (SHRP) was initiated in 1987. Products from SHRP included performance-based specifications for asphalt binders and performance-based mix design tests and criteria for asphalt mixtures. The superpave asphalt binder specification addresses performance of in-service pavements for given environmental and traffic conditions. During the 1985 paving season in Indiana, the original asphalt binder and HMA (truck mix samples) from a number of pavements were sampled and retained. Cores were also taken from these pavements after seven or eight years of service. Conditions surveys were performed on these …
Conditions For Stripping Using Accelerated Testing, Changlin Pan, Thomas D. White
Conditions For Stripping Using Accelerated Testing, Changlin Pan, Thomas D. White
JTRP Technical Reports
A laboratory study was conducted to determine water sensitivity and rutting potential of asphalt mixtures. Two major tests were included in the study: AASHTO T-283 and a laboratory wheel tracking device (PURWheel). AASHTO T-283 has been adopted in the Superpave system for evaluating mixture stripping potential. The PURWheel device and test method was developed with the concept creating conditions associated with stripping, i.e. moisture, high temperature, and a moving wheel load. The laboratory wheel track tests can be conducted with hot/wet or hot/dry environments. The objective of the study is to determine the factors that most influence bituminous mixture stripping …
Contributions Of Pg Graded Asphalt To Low Temperature Cracking Resistance Of Pavement, Ssu-Wei Loh, J. Olek
Contributions Of Pg Graded Asphalt To Low Temperature Cracking Resistance Of Pavement, Ssu-Wei Loh, J. Olek
JTRP Technical Reports
The purpose of this research was to study and evaluate the role that asphalt binders play in the resistance of asphalt pavements to low temperature cracking. As part of the Strategic Highway Research Program (SHRP) new specifications for asphalt binders were developed that are based on the performance of the material. The asphalt binder graded and specified according to these new performance-based specifications is called PG binder. These new specifications are commonly referred to as Superpave (Superior Performing Asphalt Pavement) binder specifications. A section of Interstate 64 in southern Indiana was experiencing severe low temperature cracking before it was reconstructed …
Steel Bridge Protection Policy: Life Cycle Cost Analysis And Maintenance Plan, Jon D. Fricker, Tarek Zayed, Luh M. Chang
Steel Bridge Protection Policy: Life Cycle Cost Analysis And Maintenance Plan, Jon D. Fricker, Tarek Zayed, Luh M. Chang
JTRP Technical Reports
The study identifies various painting systems that are successfully used in Indiana's surrounding states and other industries. the identified systems are further screened and evaluated. After prudently comparing INDOT's inorgainc zinc/vinyl system with the waterborne acrylic system, the moisture cure urethane coating system and the 3-coat system of zinc-epoxy-urethane, the sresults show that thte new 3-coat system fulfills INDOT's needs with the most benefits. Therefore, the 3-coat system is recommended to replace INDOT present inorgaic zinc/vinyl system. To deal with the problems facing the lead-based paint, a comparison between full-removal and over-coating alternatives is made. Results show that over-coating might …
Steel Bridge Protection Policy: Warranty Clauses For Indot Steel Bridge Paint Contracts, Luh M. Chang, Tarek Zayed, Jon D. Fricker
Steel Bridge Protection Policy: Warranty Clauses For Indot Steel Bridge Paint Contracts, Luh M. Chang, Tarek Zayed, Jon D. Fricker
JTRP Technical Reports
The study identifies various painting systems that are successfully used in Indiana’s surrounding states and other industries. The identified systems are further screened and evaluated. After prudently comparing INDOT’s inorganic zinc / vinyl system with the waterborne acrylic system, the moisture cure urethane coating system, and the 3-coat system of zinc-epoxy-urethane, the results show that the new 3-coat system fulfills INDOT’s needs with the most benefits. Therefore, the 3-coat system is recommended to replace INDOT present inorganic zinc / vinyl system. To deal with the problems facing the lead-based paint, a comparison between full-removal and over-coating alternatives is made. Results …
Steel Bridge Protection Policy: Main Report, Luh M. Chang, Tarek Zayed, Jon D. Fricker
Steel Bridge Protection Policy: Main Report, Luh M. Chang, Tarek Zayed, Jon D. Fricker
JTRP Technical Reports
The study identifies various painting systems that are successfully used in Indiana’s surrounding states and other industries. The identified systems are further screened and evaluated. After prudently comparing INDOT’s inorganic zinc / vinyl system with the waterborne acrylic system, the moisture cure urethane coating system, and the 3-coat system of zinc-epoxy-urethane, the results show that the new 3-coat system fulfills INDOT’s needs with the most benefits. Therefore, the 3-coat system is recommended to replace INDOT present inorganic zinc / vinyl system. To deal with the problems facing the lead-based paint, a comparison between full-removal and over-coating alternatives is made. Results …
Steel Bridge Protection Policy: Metalization Of Steel Bridges: Research And Practice, Luh M. Chang, Tarek Zayed, Jon D. Fricker
Steel Bridge Protection Policy: Metalization Of Steel Bridges: Research And Practice, Luh M. Chang, Tarek Zayed, Jon D. Fricker
JTRP Technical Reports
The study identifies various painting systems that are successfully used in Indiana’s surrounding states and other industries. The identified systems are further screened and evaluated. After prudently comparing INDOT’s inorganic zinc / vinyl system with the waterborne acrylic system, the moisture cure urethane coating system, and the 3-coat system of zinc-epoxy-urethane, the results show that the new 3-coat system fulfills INDOT’s needs with the most benefits. Therefore, the 3-coat system is recommended to replace INDOT present inorganic zinc / vinyl system. To deal with the problems facing the lead-based paint, a comparison between full-removal and over-coating alternatives is made. Results …
Flexible Pavement Drainage Monitoring, Performance, And Stability, Aiwen Feng, Jianfeng Hua, Thomas D. White
Flexible Pavement Drainage Monitoring, Performance, And Stability, Aiwen Feng, Jianfeng Hua, Thomas D. White
JTRP Technical Reports
The current study is a continuation of the study FHWA/IN/JTRP project HPR-2078, “Locating the Drainage Layer for Flexible Pavements”. In this previous study, three test sections were constructed in a new pavement on a by-pass around Fort Wayne, Indiana. These test sections were instrumental to record temperatures, moisture, frost penetration, rainfall and subdrainage system overflow. Collected data and Finite Element Method (FEM) analysis indicate the subdrainage systems are performing satisfactorily. However, concern developed over the stability and rutting characteristics of the open-graded drainage layers. As a continuation study, longer term environmental and subdrainage performance data was collected. Additional data was …
Landslide Remediation Using Unconventional Methods, Richard J. Deschamps, Cary B. Lange
Landslide Remediation Using Unconventional Methods, Richard J. Deschamps, Cary B. Lange
JTRP Technical Reports
Landslides are very common within the residual soils and sedimentary rock of Southern Indiana. A substantial amount of the Indiana State budget is spent on road repair and maintenance from damage caused by landslide. The landslide remedial technique frequently applied by the Indiana Department of Transportation (INDOT) is the excavation and backfill method, which in most instances is successful. However, in many cases more liberal landslide treatments may be applied that would arrest movement, provide a sufficient safety factor, and at a lower cost. The objective of this study is to propose economically feasible landslide remedial methods that may be …
Methods Of Corrosion Protection And Durability Of Concrete Bridge Decks Reinforced With Epoxy-Coated Bars - Phase I, Lisa Michele Samples, J. A. Ramirez
Methods Of Corrosion Protection And Durability Of Concrete Bridge Decks Reinforced With Epoxy-Coated Bars - Phase I, Lisa Michele Samples, J. A. Ramirez
JTRP Technical Reports
In this study, the results of an extensive field and laboratory investigation conducted to evaluate the corrosion performance of epoxy-coated reinforcement are reported. One hundred and twenty three concrete bridge decks containing epoxy-coated reinforcement, uncoated reinforcement, and various other corrosion protection systems were included in a field investigation. An initial visual inspection of these bridge decks showed that 44% had signs of distress from corrosion of the reinforcement. Six decks, representing 5% of the total sample, were selected for a second more detailed survey. Three of the six decks had epoxy-coated reinforcement. This number represents 11% of the total sample …
Embankment Widening Design Guidelines And Construction Procedures, Richard J. Deschamps, Christopher S. Hynes, Philippe L. Bourdeau
Embankment Widening Design Guidelines And Construction Procedures, Richard J. Deschamps, Christopher S. Hynes, Philippe L. Bourdeau
JTRP Technical Reports
In recent years failures have occurred in Indiana highway embankments where the embankments were widened and steepened in order to facilitate construction of longer, safer acceleration and deceleration lanes and to increase the traffic capacity and efficiency of existing thoroughfares. The objectives of this study were to investigate the cause of failure and to make recommendations for modifying the existing INDOT Standard Specifications and construction guidelines in an attempt to avoid similar failures in the future. A literature review and survey of state and federal transportation agencies was performed to collect current, available design guidelines and construction procedures for sideslope …
Effects Of Salt And Its Trace Minerals On Aggregate In Bituminous Pavements, Terry R. West, H. J. Park, S. E. Grover
Effects Of Salt And Its Trace Minerals On Aggregate In Bituminous Pavements, Terry R. West, H. J. Park, S. E. Grover
JTRP Technical Reports
Research on the effects of deicing salts and their trace minerals on bituminous highway wearing courses was prompted by early pavement deterioration of federal and state highways in Indiana. Several bituminous surface courses containing slag, slag-dolomite, or dolomite aggregates showed deterioration soon after deicing salts were first applied. Initially, a detailed literature review (Appendix A of report) was conducted. Data on eighteen dolomite sources from a previous study (Bruner, Choi and West, 1995) plus ten additional dolomite sources formed the basis for the brine freeze thaw testing program. Mercury intrusion porosimetry testing conducted on multiple specimens showed that rock texture …
Evaluation Of Strand Transfer And Development Lengths In Pretensioned Girders With Semi-Lightweight Concrete, Robert J. Peterman, J. A. Ramirez, J. Olek
Evaluation Of Strand Transfer And Development Lengths In Pretensioned Girders With Semi-Lightweight Concrete, Robert J. Peterman, J. A. Ramirez, J. Olek
JTRP Technical Reports
Indiana has been using lightweight aggregate consisting mostly of expanded shale in the production of prestressed concrete bridge girders for several projects. The lightweight aggregate has been used as partial replacement for regular gravel or crushed limestone coarse aggregate. This semi-lightweight concrete weighs around 2080 kg/m .
In a study sponsored by the FHWA, the current AASHTO equations for the calculation of transfer and development lengths of prestressing strand were found to be unconservative in the case of lightweight concrete members with unit weight less than 1 920 kg/m3 . This finding raises a question regarding the applicability of the …
Pile Design Based On Cone Penetration Test Results, Rodrigo Salgado, Junhwan Lee
Pile Design Based On Cone Penetration Test Results, Rodrigo Salgado, Junhwan Lee
JTRP Technical Reports
The bearing capacity of piles consists of both base resistance and side resistance. The side resistance of piles is in most cases fully mobilized well before the maximum base resistance is reached. As the side resistance is mobilized early in the loading process, the determination of pile base resistance is a key element of pile design. Static cone penetration is well related to the pile loading process, since it is performed quasi-statically and resembles a scaled-down pile load test. In order to take advantage of the CPT for pile design, load-settlement curves of axially loaded piles bearing in sand were …
Reconciled Platoon Accommodations At Traffic Signals, Jay Wasson, Montasir Abbas, Darcy M. Bullock, Avery Rhodes, Chong Kang Zhu
Reconciled Platoon Accommodations At Traffic Signals, Jay Wasson, Montasir Abbas, Darcy M. Bullock, Avery Rhodes, Chong Kang Zhu
JTRP Technical Reports
The use of microprocessor-based traffic signal controllers introduced in the 1960s has allowed for the development of many new strategies to make traffic signal systems more responsive to traffic conditions. Many efforts have focused on the development of real-time, adaptive control strategies. While some of these strategies have been shown to improve intersection performance, there are several factors that have limited their deployment. Some of these include substantial capital cost, complicated calibration procedures, and the reluctance of practicing engineers to deploy strategies radically different from those currently in use. Therefore, lower cost strategies that are compatible with existing infrastructure continue …
Steel Bridge Protection Policy: Evaluation Of Bridge Coating System For Indot Steel Bridges, Luh M. Chang, Tarek Zayed, Jon D. Fricker
Steel Bridge Protection Policy: Evaluation Of Bridge Coating System For Indot Steel Bridges, Luh M. Chang, Tarek Zayed, Jon D. Fricker
JTRP Technical Reports
The study identifies various painting systems that are successfully used in Indiana’s surrounding states and other industries. The identified systems are further screened and evaluated. After prudently comparing INDOT’s inorganic zinc / vinyl system with the waterborne acrylic system, the moisture cure urethane coating system, and the 3-coat system of zinc-epoxy-urethane, the results show that the new 3-coat system fulfills INDOT’s needs with the most benefits. Therefore, the 3-coat system is recommended to replace INDOT present inorganic zinc / vinyl system. To deal with the problems facing the lead-based paint, a comparison between full-removal and over-coating alternatives is made. Results …
Assessing And Updating Indot's Traffic Monitoring System For Highways, Volume 2 - Appendices B7 And C, Samuel Labi, Jon D. Fricker
Assessing And Updating Indot's Traffic Monitoring System For Highways, Volume 2 - Appendices B7 And C, Samuel Labi, Jon D. Fricker
JTRP Technical Reports
This study evaluates the existing resources and procedures ofINDOT's current traffic monitoring program, with the objective of transforming this program into a comprehensive Traffic Monitoring System for Highways (TMS/H). Reliable traffic data is a valuable input for studies and decision-making at various levels and in various phases of highway management including planning and design, finance and taxation, legislation and safety. The nature and scope of the various components comprising a TMS/H for any state were identified in available literature such as the Federal Register and Traffic Monitoring Guide.
A complete inventory of the existing resources (personnel and equipment) and procedures …
Development Of A 3-D Finite Element Program For Pavement Analysis, Volume I: Introduction And Appendix 1, Tatsaba Nilaward, Chiang Shih, Thomas D. White, E. C. Ting
Development Of A 3-D Finite Element Program For Pavement Analysis, Volume I: Introduction And Appendix 1, Tatsaba Nilaward, Chiang Shih, Thomas D. White, E. C. Ting
JTRP Technical Reports
A three dimensional finite element program is developed for the analysis of pavement systems. An explicit approach of the finite element analysis is adopted. This approach results in a vector formulation of the equation of motion. Large displacement is considered through the use of a co-rotational approach which considers small deformations and large rotations of the elements. For the convenience of application a two dimensional finite element program is also developed. An eight-node ¶metric solid element is used for the three dimensional analysis, and a four-node element for the two dimensional analysis. Loading conditions are verified for static ramp and …
Development Of A 3-D Finite Element Program For Pavement Analysis, Volume 3: Appendix 3, Tatsaba Nilaward, Chiang Shih, Thomas D. White, E. C. Ting
Development Of A 3-D Finite Element Program For Pavement Analysis, Volume 3: Appendix 3, Tatsaba Nilaward, Chiang Shih, Thomas D. White, E. C. Ting
JTRP Technical Reports
A three dimensional finite element program is developed for the analysis of pavement systems. An explicit approach of the finite element analysis is adopted. This approach results in a vector formulation of the equation of motion. Large displacement is considered through the use of a co-rotational approach which considers small deformations and large rotations of the elements. For the convenience of application a two dimensional finite element program is also developed. An eight-node isoperimetric solid element is used for the three dimensional analysis, and a four-node element for the two dimensional analysis. Loading conditions are verified for static ramp and …
Development Of A 3-D Finite Element Program For Pavement Analysis, Volume 2: Appendix 2, Tatsaba Nilaward, Chiang Shih, Thomas D. White, E. C. Ting
Development Of A 3-D Finite Element Program For Pavement Analysis, Volume 2: Appendix 2, Tatsaba Nilaward, Chiang Shih, Thomas D. White, E. C. Ting
JTRP Technical Reports
A three dimensional finite element program is developed for the analysis of pavement systems. An explicit approach of the finite element analysis is adopted. This approach results in a vector formulation of the equation of motion. Large displacement is considered through the use of a co-rotational approach which considers small deformations and large rotations of the elements. For the convenience of application a two dimensional finite element program is also developed. An eight-node isoperimetric solid element is used for the three dimensional analysis, and a four-node element for the two dimensional analysis. Loading conditions are verified for static ramp and …
Controlling Air Content In Concrete That Is Being Pumped, A Synthesis Study, Charles F. Scholer, Jay Grossman
Controlling Air Content In Concrete That Is Being Pumped, A Synthesis Study, Charles F. Scholer, Jay Grossman
JTRP Technical Reports
Changes in the air content of fresh concrete that is being pumped can occur at a number of places. These locations include the initial loading of the concrete into the pump hopper, as it passes through the pump line, and when it exits the line. This synthesis reviews the findings of recent research studies which deal with air content change in pumped concrete and summarizes methods of reducing air loss caused by handling. Three main mechanisms by which air content is lost in fresh concrete that is being pumped have been noted. These factors include the high-pressure dissolution of air …
A Methodology For The Analysis Of Its Impacts On Mobility, Air Quality, And Land Use, Kumares C. Sinha, Srinivas Peeta, Muhammed Amer Sultan, Kamalakar Poonuru, Nadine-Jenelle K. Richards
A Methodology For The Analysis Of Its Impacts On Mobility, Air Quality, And Land Use, Kumares C. Sinha, Srinivas Peeta, Muhammed Amer Sultan, Kamalakar Poonuru, Nadine-Jenelle K. Richards
JTRP Technical Reports
The Indiana Department of Transportation (INDOT) is currently implementing (or has implemented) several components of Intelligent Transportation Systems (ITS). This includes a mini Advanced Traffic Management Systems (ATMS) implemented on a three-mile stretch of the Borman Expressway to evaluate advanced non-intrusive sensor systems and the associated communication infrastructure for the installation of a full-scale ATMS on the 16-mile stretch of the Borman Expressway. Potential specific ITS technologies that are either being implemented or are being considered include pre-trip information, en-route information, variable message signs, and Hoosier Helpers. It is expected that the implementation of various ITS technologies on the Borman …
A Tool For Evaluating Access Control On High Speed Urban Arterials, Part I, Henry C. Brown, Samuel Labi, Andrzej P. Tarko, Jon D. Fricker
A Tool For Evaluating Access Control On High Speed Urban Arterials, Part I, Henry C. Brown, Samuel Labi, Andrzej P. Tarko, Jon D. Fricker
JTRP Technical Reports
A highway system serves two needs: mobility and accessibility. Access control techniques are used to restrict access to the highway and improve vehicle flow. The objective of this research was to develop a comprehensive procedure to evaluate access control alternatives. The procedure includes the design and quantitative evaluation of alternatives to select the best one. Evaluation of each alternative includes prediction of turning volumes, delays, crash rates, and economic effectiveness. Several existing models predict traffic delays for signalized intersections and for minor streams at unsignalized intersections. Models are needed to predict delays of arterial streams caused by minor streams at …
A Tool For Evaluating Access Control On High Speed Urban Arterials, Part Ii: User's Manual, Henry C. Brown, Samuel Labi, Andrzej P. Tarko, Jon D. Fricker
A Tool For Evaluating Access Control On High Speed Urban Arterials, Part Ii: User's Manual, Henry C. Brown, Samuel Labi, Andrzej P. Tarko, Jon D. Fricker
JTRP Technical Reports
A highway system serves two needs: mobility and accessibility. Access control techniques are used to restrict access to the highway and improve vehicle flow. The objective of this research was to develop a comprehensive procedure to evaluate access control alternatives. The procedure includes the design and quantitative evaluation of alternatives to select the best one. Evaluation of each alternative includes prediction of turning volumes, delays, crash rates, and economic effectiveness. Several existing models predict traffic delays for signalized intersections and for minor streams at unsignalized intersections. Models are needed to predict delays of arterial streams caused by minor streams at …