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2020

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Articles 391 - 420 of 509

Full-Text Articles in Transportation Engineering

Innovation: Field-Driven Ideas For Improvement, Todd A. May Mar 2020

Innovation: Field-Driven Ideas For Improvement, Todd A. May

Purdue Road School

INDOT has set up its new Department of Innovation. The goal of the Department is to collect, vet, implement, and recognize ideas, processes, and tools specifically generated by the workforce in the field, such as construction, maintenance, contracting, and inspection. Through a peer review vetting process, ideas will be worked through a systems theory/engineer-ing process for ultimate statewide implementa-tion. Join us for a discussion

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2d Hydraulic Modeling For Streambank Stabilization In The White River, Nabil Ghalayini Mar 2020

2d Hydraulic Modeling For Streambank Stabilization In The White River, Nabil Ghalayini

Purdue Road School

As part of the new I-69 design in Morgan County, INDOT retained WSP USA to provide streambank stabilization design services for the White River. This presentation will discuss how 1D and 2D hydraulic modeling helped refine the design and include visuals to demonstrate how 1D and 2D models can help establish flow di-rection velocities at riverbanks and around pro-posed structures. A comparison of results from 1D and 2D model results will also be presented

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Michigan's Inventory-Based Rating System For Unpaved Roads, Peter Torola Mar 2020

Michigan's Inventory-Based Rating System For Unpaved Roads, Peter Torola

Purdue Road School

The current rating systems for unpaved roads lack stability and reliability and, therefore, provide little benefit as project- or network-level metrics. Since many of these systems are derived from paved-road assessment systems, they focus heavily on surface distresses rather than road width, drainage, and other features. This session presents the Inventory-Based Rating System as a stable and implementable method of condition assessment for unpaved roads, without the focus on surface distresses.

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Specifications For Intersection Conflict Warning Systems, Joseph Bruno Mar 2020

Specifications For Intersection Conflict Warning Systems, Joseph Bruno

Purdue Road School

This presentation summarizes the construction and material specifications used for a deployment of intersection conflict warning systems at 18 two-way stop controlled intersections on the state highway system. The presentation also includes information on the draft MUTCD language for intersection conflict warning systems.

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Rehabilitation Of Low-Volume Roads Using Fdr, William Flora Mar 2020

Rehabilitation Of Low-Volume Roads Using Fdr, William Flora

Purdue Road School

NDOT has used full-depth reclamation to re-habilitate low-volume roads on the state-maintained system. FDR improves the life and structural strength of the pavement at reasonable life-cycle cost. This presentation looks at the strength improvement by comparing before-and-after falling weight deflectometer (FWD) testing of pavement sections. In addition, it compares the life-cycle cost of an FDR to a traditional pavement treatment, such as recon-struction or replacement.

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22nd Street Reconstruction, City Of Elwood, Indiana, Haseeb Ghumman, William Savage, Darren Paarkes Mar 2020

22nd Street Reconstruction, City Of Elwood, Indiana, Haseeb Ghumman, William Savage, Darren Paarkes

Purdue Road School

This project involved full-depth reconstruction of 22nd Street, from P Street to Main Street, for an approximate distance of 1 mile and entailed a two-lane roadway with curb and gutter, new sidewalks, a storm system, and water and sanitary line relocations. In addition to federal funds, due to Red Gold’s investment commit-ments in the area and subsequent potential economic development, the project was awarded up to $1.4M in an Indiana Economic Development Corporation (IEDC) grant. Join us for a discussion.

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What Utilities Wish We Knew: Focusing On Communications & Electric Facilities, Joe Kline, Natalie Parks, Ted Foster Mar 2020

What Utilities Wish We Knew: Focusing On Communications & Electric Facilities, Joe Kline, Natalie Parks, Ted Foster

Purdue Road School

Nearly every project has electric and communications facilities within the project limits. In this session utility representatives discuss what designers should know for successful utility coordination.

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Alternate Methods For Preserving Asphalt Pavements, Jeff Beeler Mar 2020

Alternate Methods For Preserving Asphalt Pavements, Jeff Beeler

Purdue Road School

Come hear how the city of Warsaw, Indiana, uses a “mix of fixes” to economically extend the life cycle of its road network while maintaining a safe and politically friendly high pavement condition index (PCI) number. The mixes include rejuvenation, slurry, micro, and crack sealing.

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Indot Einvoice Application For Consultant Contracts, Jeff Clanton, Dale Carter Mar 2020

Indot Einvoice Application For Consultant Contracts, Jeff Clanton, Dale Carter

Purdue Road School

In 2016, INDOT began the implementation of an electronic consultant invoicing application with nine pilot firms. In March of 2018, the application was rolled out for use with most new consultant contracts. Approximately 2,500 invoices were processed through eInvoice in FY 2019, and INDOT is working on an enhancement retrofit for implementation on earlier contracts. In this session INDOT representatives will review the purpose and features of the application as well as planned future enhancements.

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Aging Urban Corridors: Big Challenges, Big Rewards, Carl Camacho, Erin Wenger, David Borden Mar 2020

Aging Urban Corridors: Big Challenges, Big Rewards, Carl Camacho, Erin Wenger, David Borden

Purdue Road School

When revitalizing aging urban streets, an early, in-depth investigation holds the keys to success. Property ownership documents are gener-ations old. Utility records are often nonexis-tent. Century-old underground infrastructure must be located and evaluated. The up-front, fact-finding work is more critical, there’s more of it, and it’s more valuable to the end result. Find out how we set the stage for improving a section of US 40, the “First Highway in America,” that runs through Indianapolis.

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Indot Intelligent Road Design And Construction Using 3d Models, Derek Fuller, Andrew Pangallo, Timothy Haney Mar 2020

Indot Intelligent Road Design And Construction Using 3d Models, Derek Fuller, Andrew Pangallo, Timothy Haney

Purdue Road School

This presentation provides an update on INDOT’s e-construction and Intelligent Design and Construction initiatives. This will include a discussion of INDOT’s efforts over the past year to move toward 3D CAD models for roadway design, advancements in digital/electronic construction inspection including further development and refining of inspection checklists, continued development and testing of a mobile inspection application, and demonstration projects for e-ticketing of HMA materials delivery.

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Trends And Advances In Geosynthetic Interlayers, Mark Marienfeld Mar 2020

Trends And Advances In Geosynthetic Interlayers, Mark Marienfeld

Purdue Road School

Geosynthetic pavement interlayers for asphalt pavement have been used for over 50 years. They have been improved to resolve millability, recyclability, and pavement performance concerns when millings with interlayer pieces are used in a new mix design. This presentation will summarize third-party testing for new geosynthetic interlayers and their performance improvements during milling and recycling of asphalt pavements. It will also highlight pavement performance when millings of the interlayer are used in a new mix design.

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The Cost Of Nepa, Kenneth Mcmullen, Steve Walls, Joseph Dabkowski Mar 2020

The Cost Of Nepa, Kenneth Mcmullen, Steve Walls, Joseph Dabkowski

Purdue Road School

In this session we will discuss how the National Environmental Policy Act does or does not affect a project’s bottom line. NEPA costs by project/NEPA document type will be presented, followed by a group discussion with a panel of at least one INDOT NEPA practitioner, one NEPA consultant, and one INDOT consultant services manager. The session will conclude with an open discussion for project managers, consultants, designers, and other stakeholders about costs, ways to move forward, and working toward a better understanding of environmental costs, schedule constraints, and various other issues

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Update On Partial Depth Patching Techniques For Concrete Pavement, Mike Nelson Mar 2020

Update On Partial Depth Patching Techniques For Concrete Pavement, Mike Nelson

Purdue Road School

INDOT has let and constructed numerous projects over the past 2 years utilizing signifi-cantly revised partial-depth patching tech-niques. This presentation will provide an update regarding the construction and performance of new practices.

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Indot Dnr Maintenance Memorandum, Sandra Bowman, Frank Sailer Mar 2020

Indot Dnr Maintenance Memorandum, Sandra Bowman, Frank Sailer

Purdue Road School

On March 13, 1997, INDOT and the Department of Natural Resources signed a memorandum of understanding that exempted specified main-tenance activities from the Flood Control and Navigable Waterways Act. There has been much confusion and many interpretation variances in the interim. INDOT has been working with the DNR to update the MOU to provide clarity to areas of conflicting interpretation. Join us for a discussion.

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City Of Elkhart - Ada Data Collection And Transition Plan Implementation, Jeffrey Schaffer, Rachel Page Mar 2020

City Of Elkhart - Ada Data Collection And Transition Plan Implementation, Jeffrey Schaffer, Rachel Page

Purdue Road School

Over a 5-year period, the City of Elkhart col-lected detailed data on nearly 4,000 curb ramps. The City is now using that data to plan and fund ADA improvements within the public right-of-way. This presentation will discuss how to look at an overwhelming task such as ADA compli-ance in the right-of-way and develop a plan to manage it.

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Application Of Geosynthetic Paving Fabric Interlayer In I-65, Kumar P. Dave Mar 2020

Application Of Geosynthetic Paving Fabric Interlayer In I-65, Kumar P. Dave

Purdue Road School

INDOT recently used a geosynthetic paving fabric interlayer for the first time, on I-65, to retard reflective cracking and as a pavement moisture barrier. The nonwoven fabric interlayer used is both millable and recyclable. This tech-nical presentation will provide insight into the use of paving fabric interlayer as a cost-effective, innovative tool for pavement rehabilitation.

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Geosynthetic Interlayer Functions And I-65 Installation, Mark Marienfeld Mar 2020

Geosynthetic Interlayer Functions And I-65 Installation, Mark Marienfeld

Purdue Road School

INDOT recently used a geosynthetic paving fabric interlayer for the first time, on I-65, to retard reflective cracking and as a pavement moisture barrier. The nonwoven fabric interlayer used is both millable and recyclable. This technical presentation will provide insight into the use of paving fabric interlayer as a cost-effective, innovative tool for pavement rehabilitation.

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Erms Best Practices: Don't Stumble Across The Finish Line, Heather Johnson, George Watson Mar 2020

Erms Best Practices: Don't Stumble Across The Finish Line, Heather Johnson, George Watson

Purdue Road School

Join us for a discussion of the best practices for design uploads and the upcoming changes in the next version of Electronic Records Management System (ERMS).

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Contextual Adjustment Of The Ite Trip Generation Rates Using Wi-Fi And Bluetooth Technologies, Saba Doulabi Mar 2020

Contextual Adjustment Of The Ite Trip Generation Rates Using Wi-Fi And Bluetooth Technologies, Saba Doulabi

LSU Master's Theses

The ITE Trip Generation Handbook has been in common use for about half a century to estimate vehicle trips generated by more than 172 land use categories as a function of establishment size (floor area) only. However, observed trip rates display a huge error range across different sites. Although contextual adjustment factors can ameliorate the error in the ITE trip generation estimates considerably, local site-specific trip generation rates should be collected for this purpose. Due to the huge time and monetary costs of data collection, adjusting the ITE trip generation rate is ignored by many jurisdictions. The primary contribution of …

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A Novel Self-Healing System: Towards A Sustainable Porous Asphalt, Shi Xu, Xueyan Liu, Amir Tabakovic, Erik Schlangen Mar 2020

A Novel Self-Healing System: Towards A Sustainable Porous Asphalt, Shi Xu, Xueyan Liu, Amir Tabakovic, Erik Schlangen

Articles

Self-healing asphalt, aimed to produce a sustainable asphalt pavement using green technology, has been studied in the past two decades. Technologies including encapsulated rejuvenator and induction heating have been proposed, demonstrated in the laboratory, and gradually evaluated in field application. This paper looks into the synergy effect of the above two technologies, where induction heating serves as the asphalt damage repair mechanism, requiring just 2 min heating time and encapsulated rejuvenator will replenish (rejuvenate) aged asphalt binder and reinstate bitumen’s healing ability. Moreover, the increased temperature from induction heating could in turn accelerate the diffusion process of rejuvenator into aged …

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Obtaining A Highly Effictive Antikorrosion And Depressant Additives Based On Local Raw Materiales, Abdumalik Nabievich Rizaev, Maksimovich Khakimov Abror, Shavkat Nabievich Rizaev Mar 2020

Obtaining A Highly Effictive Antikorrosion And Depressant Additives Based On Local Raw Materiales, Abdumalik Nabievich Rizaev, Maksimovich Khakimov Abror, Shavkat Nabievich Rizaev

Journal of Tashkent Institute of Railway Engineers

Possibility of the syntheses new lubricant materials are shown in work to lubricant on base local swam to resources. Possibility of the practical application polymeric additive are shown

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The Engineering Decisions For Mitigation Of Damages In Landslide Hazardous Regions Of Uzbekistan, M.Х. Miralimov, Sh.U. Normurodov Mar 2020

The Engineering Decisions For Mitigation Of Damages In Landslide Hazardous Regions Of Uzbekistan, M.Х. Miralimov, Sh.U. Normurodov

Journal of Tashkent Institute of Railway Engineers

The article provides information on ongoing measures to protect the population, territory and infrastructure from the hazards associated with landslides and the elimination of their consequences. The whole complex of measures aimed to the decision the engineering tasks of anti-landslide protection are turned into the recognition and assessment of threats, stabilization and retention of the landslide massif.

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New Sorbents For Adsorption Cleaning Phenol-Containing Waste Water Refinery, Bahodir Bahramovich Kakharov, Uchqun Vafokulovich Umarov Mar 2020

New Sorbents For Adsorption Cleaning Phenol-Containing Waste Water Refinery, Bahodir Bahramovich Kakharov, Uchqun Vafokulovich Umarov

Journal of Tashkent Institute of Railway Engineers

The article discusses some issues of creating new adsorbents based on local raw materials and waste for the purification of phenol-containing wastewater from refineries. Studied some sorption properties of new sorbents

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Production Of Fire-Resistant Concrete Based On Technogenic Waste, Uzmonjon Turgunaliyevich Yusupov Mar 2020

Production Of Fire-Resistant Concrete Based On Technogenic Waste, Uzmonjon Turgunaliyevich Yusupov

Journal of Tashkent Institute of Railway Engineers

The article notes that at present, with the development of the construction industry, the need for fire-resistant concrete is also increasing. In increasing the volume of construction, concrete and other components are some of the resources available at the price of finished objects achieved through cost reduction. It is determined that the developed fire- and heat-resistant concrete, prepared according to the technological requirements developed by us and the established standards, will provide the facility with reliable fire safety and longevity

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Development Of A Mathematical Model For Calculating The Strength Of The Main Frame Of The Vl80s Electric Truck Body For Railway Engineering, Galina Khromova, Sergey Khromov, Davran Radjibaev Mar 2020

Development Of A Mathematical Model For Calculating The Strength Of The Main Frame Of The Vl80s Electric Truck Body For Railway Engineering, Galina Khromova, Sergey Khromov, Davran Radjibaev

Journal of Tashkent Institute of Railway Engineers

A mathematical model was developed for the main body frame of the VL80s locomotive for railway engineering, including the justification of the design modes available in operation, the calculation of quasistatic characteristics for static loading modes, for single-thrust and double-thrust modes, for compression and tension modes. A calculation is also made on the effect of distributed inertial loads, then the power factors and stresses in the calculated sections of the main body frame of the VL80s electric locomotive are calculated. Summarizing conclusions are given on the maximum voltages in the design modes of the main frame of the VL80s electric …

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Features Of Power Converters For Operation Of Electric Locomotives, Malika Nabievna Tuychieva Mar 2020

Features Of Power Converters For Operation Of Electric Locomotives, Malika Nabievna Tuychieva

Journal of Tashkent Institute of Railway Engineers

The work analyzed features of technical characteristics of AC electric locomotives from other electric locomotives used in Uzbekistan. Converters are installed in the power circuit, with GTO (lockable thyristor) for electric locomotives "Uzbekistan," and for electric locomotives "Uzbekistan - yulovci" with IGBT (bipolar transistor with isolated gate). In general, two main current converters are installed on the locomotive. Each of them consists of four-quadrant pulse rectifier with three coordinates, intermediate DC link and 2 types of voltage inverters. One inverter serves for two frame-controlled bogie motors, the other for one axial-controlled bogie motor. In case of damage to any traction …

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To The Conclusion Of The Variational Equation Of Motion Of Shell Structures Supported By Frames And Stringers, Farkhod Erkinovich Abdukadirov Mar 2020

To The Conclusion Of The Variational Equation Of Motion Of Shell Structures Supported By Frames And Stringers, Farkhod Erkinovich Abdukadirov

Journal of Tashkent Institute of Railway Engineers

In this article is given the construction of the variational equation of motion of the shell structure supported by frames and stringers. Using the Hamilton - Ostrogradsky variational principle, systems of differential equations of motion of shell elements are obtained.

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Damping Cell From Gallium Arsenide With Plasma Contacts In An Extreme Gas Discharge Cell, Khurshidjon Tolibovich Yuldashev, Sherzod Sodikjonovich Akhmedov, Jasurbek Mahammadovich Ibrohimov Mar 2020

Damping Cell From Gallium Arsenide With Plasma Contacts In An Extreme Gas Discharge Cell, Khurshidjon Tolibovich Yuldashev, Sherzod Sodikjonovich Akhmedov, Jasurbek Mahammadovich Ibrohimov

Journal of Tashkent Institute of Railway Engineers

The results of an experimental study of the photocurrent in a semi-insulating gallium arsenide with plasma contacts are presented in order to identify the conditions under which the generation interaction of a plasma by a semiconductor becomes significant. The experimental data are compared with the results predicted by the simplified theory.

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Resource-Saving Maintenance And Repair Of The Traction Transformer Based On Its Diagnostics, Mirzhalil Sagatovich Yakubov, Kamolbek Hamidovich Turdibekov, Absaid Khurramovich Sulliev Mar 2020

Resource-Saving Maintenance And Repair Of The Traction Transformer Based On Its Diagnostics, Mirzhalil Sagatovich Yakubov, Kamolbek Hamidovich Turdibekov, Absaid Khurramovich Sulliev

Journal of Tashkent Institute of Railway Engineers

Based on a generalized analysis of the compiled mathematical model of the maintenance and repair system of a traction transformer of an electrified railway, a resource-saving strategy is made based on the use of the results of technical diagnostics and providing the calculation of the optimal periodicity of the overhaul periods according to the values of the practical probability of failures, the number of factors wagging on Actual residual life and exploited in various operating conditions oviyah his work.

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