Download or read book Snow Removal and Ice Control Technology written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board. This book was released on 1997 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the symposium was to provide a forum for the exchange of information about state-of-the-art research and technology applications to improve snow removal and ice control operations in transportation systems. Sixty-one papers were presented in the areas of policy and management, infrastructure and snow control, materials and applications, equipment, travel surface, environment and health, road weather information systems and forecasting, and safety and visibility. Papers were authored by maintenance engineers and researchers from Austria, the Czech Republic, Denmark, Finland, Germany, Japan, New Zealand, the Netherlands, Norway, Russia, Sweden, the United Kingdom, and the United States. Twenty-one of these papers are included in this publication.

Download or read book A Search New Technology for Pavement Snow and Ice Control written by D. M. Murray and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Evaluation Findings for the Testing of Ice Ban written by Highway Innovative Technology Evaluation Center (U.S.) and published by American Society of Civil Engineers. This book was released on 1999 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a laboratory and field evaluation to determine the effectiveness of Ice Ban anit-icing/deicing products in snow removal and ice control operation on roads. Field demonstrations conducted by eight state transportation agencies are summarized, and the effects of the ice control agent on highway structures and vehicles are also assessed.

Download or read book Snow Removal and Ice Control Technology written by and published by Treetop Pub. This book was released on 1993 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue includes 34 papers that were presented at the Third International Symposium on Snow Removal and Ice Control Technology, held in Minneapolis, Minnesota, in September 1992. The papers are grouped under the following ten headings: policy and management; materials and application techniques; environmental considerations; drift control; snow and ice removal equipment; pavement surface condition; safety and operations; visibility; road weather systems; and weather forecasting.

Download or read book Test and Evaluation Project No 28 Anti icing Technology Field Evaluation Report written by Stephen Alan Ketcham and published by . This book was released on 1998 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Managing Roadway Snow and Ice Control Operations written by David A. Kuemmel and published by Transportation Research Board. This book was released on 1994 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This synthesis report will be of interest to transportation agency maintenance engineers, managers, and operators and others involved with roadway snow and ice control including safety engineers, traffic engineers, and law enforcement agency personnel. It presents information on the state of the practice in managing roadway snow and ice control considering both rural and urban locations. The document describes the developments that have occurred during the past 20 years to improve winter maintenance. This report of the Transportation Research Board discusses winter maintenance policies and provides examples for state, city, and county agencies. Included in the discussion of winter maintenance policies are issues such as: levels of service, public relations, liability for services, and experimenting with new policies. Additional information is included on estimating winter maintenance benefits and costs; personnel and management issues; weather information systems; and materials, equipment, and facilities for winter maintenance."--Avant-propos.

Download or read book Better Snow and Ice Control Using State of the art Technologies written by and published by . This book was released on 1995 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses various programs designed to minimize road hazards caused by winter weather, and invites participation in the programs during 1996 discussion workshops. Contact information is provided.

Download or read book Snow Removal and Ice Control Research written by and published by . This book was released on 1979 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains 56 conference papers pertaining to snow removal and ice control research including Canadian research and equipment. Several of the papers are concerned with deicing salts--their effectiveness, their impact on the environment, and possible alternatives to them. Alternative methods of deicing discussed herein include: heating of bridge decks, increasing coefficient of friction between tires and pavement surfaces, use of high intensity lights, and advent of less corrosive chemicals. There are also several papers that address the problem of snow and ice accretion on power wires, guideway systems, sign boards, and etc. There is considerable attention given to development of computer programs and models for predicting scope of snow and ice control operations and for evaluating their effectiveness. Also, several papers discuss new developments in snow removal equipment and the cost of operation and maintenance.

Download or read book Evaluation of ODOT Roadway weather Sensor Systems for Snow Ice Removal Operations RWIS written by Gayle F. Mitchell and published by . This book was released on 2006 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study addressed pretreatment protocol for winter maintenance of roadways using brine. Information regarding pretreatment was assessed from surveys of personnel in state departments of transportation and county garages in Ohio. Field durability studies of various applications of brine were conducted on Portland cement concrete and asphalt concrete pavements in Ohio. Over three winter seasons, weather events and resulting pavement conditions were documented during pretreatment and during the subsequent events using visual and limited road grip tester (RGT) assessment. In addition, extensive laboratory studies were undertaken to supplement the field investigations. Integration of the findings resulted in a decision tree to aid in operational planning and pretreatment.

Download or read book Evaluation of the Performance of Deicing and Anti icing Using Organic Alternatives for Sustainable Winter Road Maintenance written by Chaozhe Jiang and published by . This book was released on 2017 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large amounts of salts are applied every winter to highways, streets, parking lots and sidewalks. Despite its effectiveness, the use of salt has increasingly become a public concern because of the detrimental effect it has on the environment and the corrosion it causes to infrastructure and vehicles. Transportation agencies therefore are actively seeking ways to reduce salt use while keeping their roads safe. As an alternative to regular salt, new chemicals and additives, mostly agriculture byproducts or agro-based organic alternatives, that have fewer environmental side effects than regular road salts, are being developed by the industry and are increasingly available in the market. However, information on the field performance of these new organic alternatives as compared to regular salts is still limited. Questions concerning optimal application rates, mixing ratios, and the role of weather and traffic conditions still need to be answered for some newly available products. In this study, two organic agro-based products, namely, Fusion and Geomelt, for deicing/anti-icing treatments, were selected and their performance was tested through a series of field tests. The goal of this research is to investigate how well they would perform in field as compared to regular salt brine. A field test was conducted to collect performance data of these materials when used in prewetting and anti-icing operations. A total of nine snow events were covered in this experiment. The maintenance treatments that were tested followed the common maintenance operation protocols recommended by the two municipalities. Traction levels and visual conditions were used as the main performance metrics along with other road weather and pavement condition data. Three main findings were obtained from an analysis of the test data. First, salts prewetted with these organic compounds performed similarly to those using regular salt brine. In most cases, the performance differences were not statistically significant, indicating that there was little evidence supporting the superiority of the organic materials for a prewetting purpose. The test data also indicated that this was true under low temperatures (~-10°C), contrary to the common beliefs about the performance of these products. However, it should be noted that performance similarities could also be influenced by the fact that the organic liquids were used for prewetting salt at a much lower ratio (5% vs. 20% for brine). Also, the dominant compound in these prewet mixes is still regular salt - sodium chloride (95% for organic treated salt and 85% for brine treated salt). When used for prewetting purposes, Geomelt and Fusion showed similar performance in terms of traction level. However, when used as additives to brines for Direct Liquid Application (DLA), both organic products largely outperformed pure salt brine despite being applied at a half its application rate. Field tests also showed that the tested compounds could help maintain up to 20% higher traction and could maintain safer friction levels for up to an hour longer. Fusion outperformed Geomelt by up to 10 % in terms of traction level. Lastly, in general the sections treated with DLA performed significantly better than the untreated sections, confirming the advantage of anti-icing strategy for snow and ice control. The field data was further used to estimate a performance model that can be used by maintenance practitioners facing similar conditions. Two different models were explored, the first set of models focused on assessing the relative snow melting rate of Geomelt and Fusion as compared to regular brine. In its final form, the model suggests that the difference in the friction number on a surface maintained with Fusion or Geomelt and one maintained with Brine will increase at a rate of 1.76 per hour and 1.95 per hour respectively on identical test sections if no further maintenance actions are taken. The second set of models estimated were general purpose models that can be used to estimate the friction level on a roadway after maintenance has been conducted. In these models, the effects of weather, wind, and chemical type were found to be significant.

Download or read book Snow Removal and Ice Control Technology written by and published by . This book was released on 1993 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snow and Ice Removal and Anti Icing Synthesis Study written by Bob McCullough and published by . This book was released on 2010-07-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snow and Ice Control written by Robert R. Blackburn and published by Transportation Research Board National Research. This book was released on 2004 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Service Evaluation of Light De icing and Snowplowing Equipment written by Marc Girardin and published by . This book was released on 1995 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alternative Snow and Ice Control Methods Field Evaluation written by Dick Parker and published by . This book was released on 1997 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimum Deicing and Anti icing for Snow and Ice Control of Parking Lots and Sidewalks written by S. M. Kamal Hossain and published by . This book was released on 2014 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Snow and ice cause pavement surfaces to become slippery and unsafe for both foot and vehicular traffic. To alleviate the hazards of pedestrians slipping and vehicular accidents, various forms of maintenance operations such as, deicing and anti-icing are conducted to control snow and ice from transportation facilities including roadways, parking lots and sidewalks. These efforts use a significant amount of resources every winter season. For instance, over $1 billion is spent annually for snow and ice control in Canada. This large cost includes the use over 5 million tons of salts (TAC, 2013). The application of excessive amount of salts has, however, raised concerns among environmental and regulatory agencies as well as the public about their detrimental effects on the environment and corrosive effects to the infrastructure (e.g., pavement, roadside structures) and vehicles. A sensible and optimal salting strategy is therefore necessary in order to reduce the harmful effects of salt while keeping the various transportation facilities safe. To realize an optimal salting strategy, one of the first steps is developing salting guidelines that specify salt application rates and treatment options for the conditions of any given snow event. A significant amount of research has been conducted in the past to develop such guidelines; however, most of these efforts focused on roadway maintenance with little concern about parking lots and sidewalks. The salt application rates developed for roadways are not applicable for the latter due to differences in traffic characteristics (vehicular vs. pedestrian) and service requirements (i.e., desirable bare pavement regain time). The main goal of this research is to develop a quantitative understanding of the snow melting performance of common snow control materials and methods, through a systematic field study, so that optimal application rates can be determined for parking lots or sidewalks under any specific weather events; this will ultimately lead to the development of a comprehensive winter maintenance guideline for parking lots and sidewalks. The field tests were conducted over the winter seasons of 2011-2012, 2012-2013 and 2013-2014 in Waterloo, Ontario, Canada. In these testing seasons, there were about 100 snow events in total with pavement surface temperatures ranging from about -20°C to 3°C, and snow precipitation from about 0.2cm to 22cm. Approximately 5000 tests were conducted using different salts (e.g., regular rock salt, alternative solid salts-semi to full organic, pre-wetted salts, liquid organic salts) and treatment methods (i.e., deicing and anti-icing), including tests with plowed and unplowed snow, with and without traffic, and in both stall areas, driveways and sidewalks. In order to closely simulate the way parking lot maintenance is performed in the real world, 60 to 70% of the test operations started between 3am and 7am. The field tests have resulted in a unique database covering the field performance of various winter maintenance materials and techniques. This performance data has then been rigorously analyzed using statistical tools to develop a quantitative understanding of the conditions that influence the effectiveness of various maintenance treatment options and to facilitate the establishment of a set of recommended treatment options and application rates for a wide variety of winter events. A majority of the tests covered deicing application of different salts. The performance of a given treatment has been measured as the time needed to reach 80% bare pavement status from the time salt was applied on top of snow. With the performance data from the deicing operations, an extensive exploratory data analysis has been conducted to investigate the factors that influence the performance of salt as a deicer. From this analysis, it was found that salt application rate, pavement temperature, snow depth, snow density and traffic are highly correlated with the snow melting performance of salt. A multivariate regression analysis was then conducted for a more rigorous analysis, quantitative information of effect, and statistical reliability of the influencing factors. The results of the regression has confirmed that all the initial factors suspected are statistically significant on the snow melting performance of salt at a 95% confidence level. With the understanding gained on physical behavior of the snow melting of salt and from the collected empirical data, a physical-empirical model has been developed. This model was then used to determine minimum application rate for a given snow event. Factors to adjust the base application rate have also been developed for some facility or treatment specific conditions such as different traffic patterns, pavement types, or using alternative salt as a deicer. In addition to deicing treatments, a significant amount of anti-icing tests have been conducted using various common and emerging anti-icers. Since, the main objective of anti-icing is to prevent bonding between snow and the pavement's surface form occurring, the co-efficient of friction was measured on treated sections and control sections using a friction tester after the end of a snow event. The friction data and event conditions data were then rigorously analyzed using various statistical tools to determine the optimal application rate for anti-icing purposes. In summary, this research first investigated the direct link between the snow melting performance of salt and weather characteristics. The results derived from this work were based on impressive amount of field testing data that reflected real-world conditions. With the collected performance and weather data, a snow melting model has been developed that is the first of its kind based on the literature reviewed. The model was then used to determine minimum salt application rates for a number of given scenarios. The performance model has also been used to prescribe adjustments to the recommended application rates based on some external or site specific factors (e.g., traffic, pavement type). This research is also the first to conduct an in-depth analysis on the investigation of the effectiveness of anti-icing operations and tested both common and emerging anti-icers. Based on a significant amount of data, an analysis of variance on the friction data has been conducted to determine the effectiveness of treatment and determine optimal application rates with statistical reliability. The field test results and insight that have been gained from this research have been used to develop a decision support tool for snow and ice control in the real world. These tools are the first of their kind and are currently in use among a number of winter maintenance contractor for parking lots and sidewalks. This research also provides deep insights on the optimal winter maintenance of other types of transportation facilities, such as roadway winter maintenance operations.