Engineering Commons^™

Importance Of Proactive Safety Analysis For Corridor Planning, Martin Guttenplan, Houssam Ghandour

Purdue Road School

A proactive safety analysis approach assists decision makers in addressing high-risk crash elements, particularly on low-volume roadways. Using corridor planning best practices and lessons learned, this presentation will explore creative and proactive approaches for holistic planning solutions. It will also validate 2020 pandemic crash data accuracy and highlight prioritization methodologies and AASHTO and FHWA guided countermeasures applied to at-risk locations.

Perspectives On Past And Present Mutcds, David Boruff

Purdue Road School

This session will describe the history of the Manual on Uniform Traffic Control Devices. Prime focus will be on the Indiana version, including the procedures that have been and those that are currently used to adopt Indiana’s manual. Pending it’s adoption prior to Road School, a summary of the significant changes in next edition of the MUTCD will also be presented.

White County Highway Garage Project Development And Outcomes, Dan Zuerner, Mike Kyburz

Purdue Road School

In this presentation we will discuss the conducted project needs assessment; site search and selection process; ancillary benefits to the county and the surrounding communities; site challenges; design development strategies and lessons learned; the anticipated time line to duplicate this project; and the contractual methods used to deliver the project. We will then wrap up with a photographic campus tour of the final outcomes and improvements.

Integrated Mobile Observations - Future Of Mobile Observation Data Technologies, Tony Coventry

Purdue Road School

Mobile observations have become an integral part of snow and ice programs. In this session we will learn about the FHWA IMO (integrating mobile observations) initiative; how mobile sensors have evolved; and what these new units are capable of doing. Discussion will include how this technology can help both the operator and the agency, how the data is visualized and used, and how agencies and airports have implemented these units.

Fhwa Updates In Highway Safety, Derek Troyer

Purdue Road School

There have been numerous changes to the safety program over the years. The past year in particular has brought new challenges and opportunities. The recent infrastructure bill introduced new areas of emphasis and a renewal, and updates to programs, such as the Focused Approach to Safety and Proven Safety Countermeasures, have recently been published. Find out what all this means for traffic safety at the local, state, and federal level in this session.

Development Of Cost-Effective High-Modulus Asphalt Concrete (Hmac) Mixtures Using Crumb Rubber And Local Construction Materials In Louisiana., Ibrahim A.I.E Elnaml

LSU Master's Theses

One of the emerging solutions to enhance the durability of asphalt pavements is the use of a French asphalt mix known as “High-Modulus Asphalt Concrete (HMAC).” This mix uses a hard asphalt binder, high binder content (about 6%), and low air voids content as compared to Superpave mixtures. The key objective of this study was to develop a cost-effective HMAC mixture using crumb rubber and local materials in Louisiana. To achieve this objective, four HMAC mixtures were prepared using two asphalt binders (PG 82-22 and PG 76-22 plus 10% crumb rubber) and two Reclaimed Asphalt Pavement (RAP) contents (20% and …

Toward Dexterous Aerial Manipulation Using Embodied Human-Intelligence For Bridge Inspection And Maintenance, Dongbin Kim

INSPIRE Archived Webinars

Current drones perform a wide variety of tasks in surveillance, photography, agriculture, package delivery, etc. However, these tasks are performed passively without the use of human interaction. Aerial manipulation shifts this paradigm and implements drones with robotic arms that allow interaction with the environment rather than simply sensing it. Many research groups have demonstrated aerial manipulation for various applications for over a decade. For example, in construction, aerial manipulation in conjunction with human interaction could allow operators to perform several tasks, such as hosing decks, drill into surfaces, and sealing cracks via a drone. This integration with drones will henceforth …

Roadhat D, Version 4.1 - Changes From Roadhat 3, Thomas E. Ford

Purdue Road School

This session will describe the subtle and not-so-subtle changes between the new RoadHAT version 4 and previous versions and also discuss some recommended choices in using RoadHAT 4 for the various road facility types.

Big Data Applications: Public Involvement Tools For Public Involvement, Amy L. Livingston, Houssam Ghandour

Purdue Road School

Using big data to better understand origin-destination and regional travel patterns is critical to project development. Tools such as passive geographically based data lead to improved definitions for traffic analysis zones (TAZs), which, in turn, help inform public involvement plans for a more targeted approach and improved equity. This presentation will highlight future planning applications in Indiana and other case examples where we have used big data to aid the plan development of public and stakeholder engagement.

To Lead Or Not To Lead?, Matt Sagstetter

Purdue Road School

Why doesn’t the flashing arrow work anymore? The green arrow doesn’t turn on, is there something wrong? These questions and more will be answered in a discussion about the operation, implementation, and education of flashing yellow arrows (FYAs) at signalized intersections. Case studies of specific intersections in Indiana will be used to show the crash history and risk analysis used to make decisions related to overall signal operation and driver safety.

Missed That! Roadway Drainage Lessons Learned, Michael Mills

Purdue Road School

Intersection improvements and downtown beautification projects are common essential improvements that benefit motorists and residents of urban communities. When scoping, it is easy to disregard drainage in order to minimize cost and reduce staffing needs. However, sometimes big problems can happen when roadway drainage is not assessed. Come take a deep dive into a few examples of drainage oversights and how they were remedied.

A Safe System Approach To Transportation Planning And Implementation, Nicole Waldheim, Kendra Schenk

Purdue Road School

Planners, engineers, and designers all have a role to play in the Safe System Approach (SSA). This presentation will highlight how to address safe road users, safe vehicles, safe speeds, safe roads, and post-crash care during planning and programming. Specifically, it will describe: (1) what a safe system is using real world examples, (2) system benefits and challenges, and (3) specific implementation ideas based on lessons learned.

Accommodating Rapid Development In Design Level Forecast A Regionally Minded Methodology, Randy Kill

Purdue Road School

Rapid large-scale development presents challenges for traffic engineers to accurately forecast design-year traffic volumes. Prevailing forecasting methods, such as the ITE Trip Generation Manual, tend to exaggerate local traffic impacts on large developments and do not account for regional influences. This presentation outlines the methodologies for developing the design level forecast of two large freeway projects amid largescale private developments. This approach provides significant improvements over traditional trip generation methods and model-based forecasts.

Learning The Ropes With Stormwater Management, Jeffrey E. Kuhn

Purdue Road School

This presentation will touch on topics and skills learned by a newly employed Stormwater Engineer working for the City of West Lafayette. Topics include erosion control methods and theory, the minimum controls measures (MCMs) for Indiana’s local municipalities, the Tippecanoe County Partnership for Stormwater Quality, Wabash River infrastructures, construction-site and outfall inspections, and much more.

Deep Learning Approach For Chemistry And Processing History Prediction From Materials Microstructure, Amir Abbas Kazemzadeh Farizhandi, Omar Betancourt, Mahmood Mamivand

Mechanical and Biomedical Engineering Faculty Publications and Presentations

Finding the chemical composition and processing history from a microstructure morphology for heterogeneous materials is desired in many applications. While the simulation methods based on physical concepts such as the phase-field method can predict the spatio-temporal evolution of the materials’ microstructure, they are not efficient techniques for predicting processing and chemistry if a specific morphology is desired. In this study, we propose a framework based on a deep learning approach that enables us to predict the chemistry and processing history just by reading the morphological distribution of one element. As a case study, we used a dataset from spinodal decomposition …

Benthic Biolayer Structure Controls Whole-Stream Reactive Transport, Kevin R. Roche, Marco Dentz

Civil Engineering Faculty Publications and Presentations

Hyporheic zone reaction rates are highest just below the sediment-water interface, in a shallow region called the benthic biolayer. Vertical variability of hyporheic reaction rates leads to unexpected reaction kinetics for stream-borne solutes, compared to classical model predictions. We show that deeper, low-reactivity locations within the hyporheic zone retain solutes for extended periods, which delays reactions and causes solutes to persist at higher concentrations in the stream reach than would be predicted by classical approaches. These behaviors are captured by an upscaled model that reveals the fundamental physical and chemical processes in the hyporheic zone. We show how time scales …

Continental Break-Up Under A Convergent Setting: Insights From P Wave Radial Anisotropy Tomography Of The Woodlark Rift In Papua New Guinea, Youqiang Yu, Frederik Tilmann, Dapeng Zhao, Stephen S. Gao, Kelly H. Liu

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

To explore the dynamic mechanism of continental rifting within a convergent setting, we determine the first P wave radial anisotropic tomography beneath the Woodlark rift in southeastern Papua New Guinea, which develops within the obliquely colliding zone between the Australian and southwest Pacific plates. The rift zone is depicted as localized low-velocity anomalies with positive radial anisotropy, which rules out a dominant role of active mantle upwelling in promoting the rift development and favors passive rifting with decompression melting as main processes. Downwelling slab relics in the upper mantle bounding the rift zone are revealed based on observed high-velocity anomalies …

Phase Noise Analyses And Measurements In The Hybrid Memristor-Cmos Phase-Locked Loop Design And Devices Beyond Bulk Cmos, Naheem Olakunle Adesina

LSU Doctoral Dissertations

Phase-locked loop (PLLs) has been widely used in analog or mixed-signal integrated circuits. Since there is an increasing market for low noise and high speed devices, PLLs are being employed in communications. In this dissertation, we investigated phase noise, tuning range, jitter, and power performances in different architectures of PLL designs. More energy efficient devices such as memristor, graphene, transition metal di-chalcogenide (TMDC) materials and their respective transistors are introduced in the design phase-locked loop.

Subsequently, we modeled phase noise of a CMOS phase-locked loop from the superposition of noises from its building blocks which comprises of a voltage-controlled oscillator, …

The Effect Of Soot Models In Oxy-Coal Combustion Simulations, Kamron Groves Brinkerhoff

Theses and Dissertations

Soot in coal combustion simulations is often ignored due to its computational complexity, despite significant effects on flame temperature and radiation. In this research, a 40 kW oxy-coal combustion system is modeled using Large Eddy Simulations (LES) and a semi-empirical monodisperse coal soot model. Simulation results are compared to experimental measurements of temperature, species concentrations, and soot concentration. Cases where soot is modeled are compared with cases where soot is neglected to determine the accuracy benefits of modeling soot. The simulations were able to replicate experimental results within an acceptable level of error. Including soot in the simulations did not …

Multipath Mitigation In Frequency Selective Channels With An Emphasis On 5g Cellular Mobile Networks And Aeronautical Mobile Telemetry Applications, Farah Arabian

Theses and Dissertations

This dissertation explores the role of polarization, combining, and equalization operating over frequency-selective channels to improve the reliability of wireless communications systems in terms of BER for two applications: 5G mobile networks (operating in the mmWave band and NR FR1), and aeronautical mobile telemetry systems (operating in L band). The equivalent discrete-time models for a variety of spatial combining techniques at 5G mmWave bands were derived to investigate the performance of co-located cross-polarized antenna elements when polarization diversity is used and also when a combination of spatial and cross-polarized antennas is exploited. In both cases, ML combining has the lowest …

Intermediate Temperature Solid Oxide Cell With A Barrier Layer Free Oxygen Electrode And Phase Inversion Derived Hydrogen Electrode, Yongliang Zhang, Nansheng Xu, Qiming Tang, Kevin Huang

Faculty Publications

High-temperature solid oxide cells (SOCs) have fundamental advantages in efficiency and product rate over their low-temperature counterparts. However, the commercial development of SOCs is hindered by cost and reliability. To solve the issues, lowering the operating temperature of SOCs is deemed the best solution. Here we report on our effort toward intermediate temperature (IT) SOCs by developing a barrier layer free high-performance oxygen electrode and open structured hydrogen electrode. The results show that the new oxygen electrode provides reasonably good oxygen electrocatalytic activity at IT range for oxygen reduction and evolution reactions and the open structured hydrogen electrode provides low …

Innovations In Engineering Education For Fast-Paced Virtual Summer Courses, Eleazar Marquez, Samuel Garcia

Mechanical Engineering Faculty Publications

In this study, the recently developed CIRE (Communication, Initiation, Reduction, and Extension) pedagogical model was modified to generate an effective framework for a virtual, fast-paced summer engineering course in a private university in Texas. Transitioning to fully online courses in the wake of COVID-19 required rectifying traditional instructional methods to overcome challenges such as the lack of academic resources and established campus practices, while simultaneously ensuring the academic development of students. Thus, a pedagogical framework known as the CIRE model was recently designed and implemented in a Rigid Body Dynamics course, which according to the study, generated favorable results. To …

Skip Nav Destination Research Article| March 16, 2022 Assessing The Effect Of Melt Extraction From Mushy Reservoirs On Compositions Of Granitoids: From A Global Database To A Single Batholith, J. Cornet, O. Bachmann, J. Ganne, A. Fiedrich, C. Huber, C. D. Deering, X. Feng

Michigan Tech Publications, Part 1

Mafic and ultramafic plutonic rocks are often considered to be crystal cumulates (i.e., they are melt-depleted), but such a classification is much more contentious for intermediate to silicic granitoids (e.g., tonalite, granodiorite, granite, and syenite). Whether or not a given plutonic rock has lost melt to feed shallower subvolcanic intrusive bodies or volcanic edifices has key implications for understanding igneous processes occurring within the crust throughout the evolution of the Earth. We use statistical analyses of a global volcanic and plutonic rock database to show that most mafic to felsic plutonic rock compositions can be interpreted as melt-depleted (i.e., most …

Ultrahigh Piezoelectric Performance Through Synergistic Compositional And Microstructural Engineering, Yongke Yan, L. D. Geng, Li Feng Zhu, Haoyang Leng, Xiaotian Li, Hairui Liu, Dabin Lin, Ke Wang, Yu Wang, Shashank Priya

Michigan Tech Publications, Part 1

Piezoelectric materials enable the conversion of mechanical energy into electrical energy and vice-versa. Ultrahigh piezoelectricity has been only observed in single crystals. Realization of piezoelectric ceramics with longitudinal piezoelectric constant (d33) close to 2000 pC N–1, which combines single crystal-like high properties and ceramic-like cost effectiveness, large-scale manufacturing, and machinability will be a milestone in advancement of piezoelectric ceramic materials. Here, guided by phenomenological models and phase-field simulations that provide conditions for flattening the energy landscape of polarization, a synergistic design strategy is demonstrated that exploits compositionally driven local structural heterogeneity and microstructural grain orientation/texturing to provide record piezoelectricity in …

Greenfield District Creates A Traffic Project, Luis Laracuente

Purdue Road School

Each year INDOT funds safety and mobility driven projects. There is yearlong internal process to identify the needs, define the problems, and plan the projects. This presentation aims at explaining this process from a district perspective and reveal our planning and funding process. We also discuss the shifting in planning philosophy and the ever-growing goal to plan and build multi-modal, self-enforcing, safe, and efficient intersections and streets.

Rail: Yesterday, Today, And Tomorrow In Indiana, Indiana State Rail Plan, Vanetta Keffe, Keith Bucklew

Purdue Road School

The Indiana State Rail Plan is focused on improving the mobility, safety, economic development, and environmental stewardship of the state’s multimodal freight system. As the Crossroads of America, Indiana is home to 50 railroads, which deliver freight and Hoosiers to their destinations daily. This session focuses on the development of Indiana’s State Rail Plan and strategies to balance rail, trucking, and inland waterways as complementary modes that together represent the future of cost-efficient freight transportation.

Pavement Marking Updates, Joseph Bruno

Purdue Road School

Significant changes to pavement markings are under- way to improve the safety and service life of roads and to assist vehicles with lane departure warning systems. This presentation will provide an update on changes to the Indiana Design Manual, Standard Specifications, and Standard Drawings for the use of 6-in. lines as the normal line width, RPM usage and spacing changes, and increasing the use of durable marking materials. The presentation will also include other pavement marking topics, such as contrast markings and orange pavement markings for work zones.

Low Impact Roundabout Conversion, Brian W. Craig, Jay Vorisek, Johnathon Nail

Purdue Road School

Low Impact Roundabout Conversion—This presentation describes the planning, design, and construction of a $527,000 compact roundabout for the City of Westfield at 171st Street and Carey Road. This stopcontrolled intersection was converted to a roundabout by constructing a center island, splitter islands, and minor pavement widening within the general footprint of the intersection. The existing pavement was re-used by placing wedge and level to achieve the roundabout’s designed grades.

Rehabilitation Of I-70 Composite Pavement Using Peel And Stick Strip Membrane & Geosynthetic Paving Fabric Interlayer, Kumar P. Dave, Pankaj G. Patel

Purdue Road School

I-70 composite (asphalt over concrete) pavement is being rehabilitated using peel and stick membrane and geosynthetic paving fabric. The innovative rehabilitation technique is the first time peel and stick membrane is being used with geosynthetic paving fabric on the existing concrete pavement of the interstate. This combination retards reflective cracking and acts as a moisture barrier, which extends the service life of the treatment.

Evaluation Of The Impact Of Queue Trucks With Navigation Alerts Using Connected Vehicle Data, Rahul Suryakant Sakhare, Jairaj C. Desai, Justin Mahlberg, Jijo K. Mathew, Woosung Kim, Howell Li, John D. Mcgregor, Darcy M. Bullock

Purdue Road School

No abstract provided.