Mobility and safety: Do drivers behave as engineers want them to behave?

As engineers, we thrive to provide environment for safe mobility through proper geometric designs, regulations, guidance and warnings. However, safe movements are still heavily dependent on the individual behavior and reactions by the drivers/users (at least for now). Traditionally, understanding drivers’ behavior has been a difficult topic to research, but today we have increasing number of data and tools available to improve that understanding. One of the tools that has recently become available is the Naturalistic Driving Study (NDS) database that provides an opportunity to investigate the behavior of almost 3,500 instrumented vehicles and drivers in six different regions of the country. There are numerous opportunities for the data, but currently we are harnessing it toward development of driver behavior trends at highway-rail grade crossings, and eventually toward investigating the correlation of behavior in simulated vs. natural settings.https://digitalcommons.mtu.edu/techtalks/1030/thumbnail.jp

Log truck value analysis from increased rail usage

Over the past several decades, the transportation of raw materials (logs) has increasingly shifted from the railway to trucks. However, the long-term sustainability of this shift is being questioned due to the shortage of truck drivers, fluctuation of fuel prices, and changes in hours of service laws. The industry is interested in the possibility to shift more logs back to the railway but the impact of such a shift on truckers has not been investigated. This study attempted to quantify the impact of such a change on the operations of log truckers by calculating time efficiency (percentage of daily hours of service for revenue activities) and value efficiency (average loaded versus total ton-kilometers per day) between a truck only and multimodal (truck/rail) alternatives. We used actual data from the forest products industry companies and truck performance data from an earlier study to investigate the impact through case studies in four different locations of the upper Midwest, US. The results of our analysis revealed that in three out of our four case studies, re-routing log movements through rail yard/siding improved the time efficiency and value efficiency. Finally, our sensitivity analysis found that increases in average truck speed and maximum hours or service had higher impact on multimodal transportation than in truck-only system

Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region

Degrading permafrost conditions around the world are posing stability issues for infrastructure constructed on them. Railway lines have exceptionally low tolerances for differential settlements associated with permafrost degradation due to the potential for train derailments. Railway owners with tracks in permafrost regions therefore make it a priority to identify potential settlement locations so that proper maintenance or embankment stabilization measures can be applied to ensure smooth and safe operations. The extensive discontinuous permafrost zone along the Hudson Bay Railway (HBR) in Northern Manitoba, Canada, has been experiencing accelerated deterioration, resulting in differential settlements that necessitate continuous annual maintenance to avoid slow orders and operational interruptions. This paper seeks to characterize the different permafrost degradation susceptibilities present at the study site. Track geometry exceptions were compared against remotely sensed vegetation indices to establish a relationship between track quality and vegetation density. This relationship was used as a proxy for subsurface condition verified by electrical resistivity tomography. The established relationship was then used to develop a three-level degradation susceptibility chart to indicate low, moderate and high susceptibility regions. The defined susceptibility regions can be used to better allocate the limited maintenance resources and also help inform potentially long-term stabilization measures for the severely affected sections

A Survey Analysis of Forest Harvesting and Transportation Operations in Michigan

This paper assesses the technology involved in commercial forest harvesting and delivery operations. It investigates existing forest-based production capacity and its potential to supply the startup of large scale forest-based industries. A survey of harvesting and transportation workforce and technology was mailed to 1,130 logging firms operating in Michigan and four Wisconsin counties that adjoin Michigan’s Upper Peninsula. The response rate received was 28%. The paper details and analyses the different operational matters, conditions, equipment and transportation use reported by logging firms. The study provides technical forest products operations information and methods for assessing the capacity of logging firms and markets looking to expand their businesses

Developing Safe and Efficient Driving and Routing Strategies at Railroad Grade Crossings based on Highway-Railway Connectivity

693JJ619C000022This report documents the research involved in developing safe and efficient driving and routing strategies at highway-rail grade crossings (i.e., highway-rail intersections) based on highway-rail connectivity for economic evaluation, driver behavior analysis, and Eco-Driving and Eco-Routing strategies. From September 2019 to December 2022, a research team from Michigan Technological University led this project with a team from the University of Kentucky as an academic partner and Escanaba & Lake Superior (E&LS) Railroad as an industry partner. This project was sponsored by the Federal Railroad Administration through the 2018 Broad Agency Announcement on Intelligent Railroad System Research

International Summer Program in Railroad Engineering

The railroad industry has identified a need for engineers as many will be retiring over the next few years and freight rail traffic is predicted to increase. The challenge is finding engineers from university campuses, where careers and education in railroad engineering have been forgotten. Michigan Tech University saw a unique opportunity for innovative six-credit summer program that combines introductory railroad engineering with cultural and language studies and includes a study-abroad component. The railroad industry is supporting the program by providing guest lecturers, industry-hosted technical tours and scholarships. The program has increased students\u27 excitement toward rail careers and allowed them to experience and compare two different rail systems and cultures. The industry has responded by setting up summer internships for program participants and by hiring several of them for full time positions. This paper will highlight the features of the program, the outcomes, future opportunities, successes and lessons learned in setting up an escorted study abroad experience in engineering. © 2006 IEEE

What the railroad industry needs and expects from higher education

Rail transportation and engineering education in the United States was neglected for decades, from a lack of demand for graduates in the field. However, the increase in freight rail transportation volumes, combined with a growing interest in passenger rail development, has reenergized the academic community. Currently, several universities are either investigating or implementing rail-related activities. Because of the long disconnect between the industry and academia, several challenges have arisen about what the rail industry needs and wants from graduates and universities. Challenges include the quantitative and qualitative demands placed on graduates by the industry as well as industry preference for types of education and the perceived benefits from university education and university-industry collaboration. The educational background of current industry employees and its importance to their career selection are also of interest. This paper reports the outcomes of two online surveys of industry employees to bring light to the aforementioned points. More than 1,000 industry employees participated in the surveys that were conducted in 2006 and 2010. The second survey was conducted as part of a collaborative study between the United States and the European Union, allowing direct comparison of opinions between the U.S. and international workforce

Optimal Level of Woody Biomass Co-Firing with Coal Power Plant Considering Advanced Feedstock Logistics System

Co-firing from woody biomass feedstock is one of the alternatives toward increased use of renewable feedstock in existing coal power plants. However, the economic level of co-firing at a particular power plant depends on several site-specific factors. Torrefaction has been identified recently as a promising biomass pretreatment option to lead to reduction of the feedstock delivered cost, and thus facilitate an increase in the co-firing ratio. In this study, a mixed integer linear program (MILP) is developed to integrate supply chain of co-firing and torrefaction process and find the optimal level of biomass co-firing in terms of minimized transportation and logistics costs, with or without tax credits. A case study of 26 existing coal power plants in three Great Lakes States of the US is used to test the model. The results reveal that torrefaction process can lead to higher levels of co-firing, but without the tax credit, the effect is limited to the low capacity of power plants. The sensitivity analysis shows that co-firing ratio has higher sensitivity to variation in capital and operation costs of torrefaction than to the variation in the transportation and feedstock purchase costs

Railway engineering education symposium: Evolving to rebuild a growing rail academic community

© 2017, SAGE Publications Ltd. All rights reserved. Although freight traffic declined in 2016, North American railways have experienced a decades-long period of growth in freight ton-miles and in the number of commuter and intercity passenger rail trips. This growth, combined with the aging railway workforce, has triggered renewed demand for university graduates to enter railway careers. However, after decades of neglect, only a few North American academic programs are engaged in rail-related research and education. The railway academic community must be rebuilt to meet the industry workforce needs of the future. Since 2008, the Railway Engineering Education Symposium (REES) has been staged as a biannual collaboration between academia and industry to expose professors to railway engineering education topics. REES has prompted faculty at numerous universities to expand railway content in introductory transportation courses and to establish new courses on railway engineering topics. According to feedback from surveys of attendees, REES has evolved to support the growing railway academic community better. Expanding its original focus on new professors, REES now serves as a user conference for returning professors already engaged in railway education activities and is accompanied by online delivery of previous materials. This paper briefly reviews the decline of the relationship between railways and academia, then concentrates on the role of REES in its reemergence. Evidence of REES successes from participant surveys is documented, and challenges on the path forward are discussed

Advanced Woody Biomass Logistics for Co-Firing in Existing Coal Power Plant: Case Study of the Great Lakes States

© National Academy of Sciences: Transportation Research Board 2018. One of the core decisions on securing the supply of biomass to co-firing power plants is the design of a proper logistics system. Though technologies have been developed to improve the characteristics of feedstock, their effects in the logistics systems have received less attention. This paper compares the conventional woody biomass logistics system with the advanced woody biomass logistics system that includes the torrefaction process to upgrade the feedstock. More specifically, this study uses a mixed integer linear program to integrate conventional and advanced biomass logistics and applies them to a case study of 26 coal power plants in the Great Lakes states to determine the most feasible logistics system for each plant. The results revealed that the amount of cost savings from the advanced woody biomass logistics depends on the capacity and location of the power plant. To categorize the cost savings of individual plants, it was found that plants can be divided into seven groups based on three parameters: 1) annual coal tonnage shipped (total capacity), 2) availability of biomass in the vicinity, and 3) average distance from biomass collecting sites. Overall savings from advanced logistics were small, but plants within each of the groups demonstrated similar cost reductions. The sensitivity analysis showed that trucking costs and feedstock purchasing costs were most sensitive to variation. From torrefaction effects, energy content after torrefaction had more significance than mass reduction