Author: Pitu B. Mirchandani
Publisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 102
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Book Description
RHODES is a traffic-adaptive signal control system that optimally controls the traffic that is observed in real time. The RHODES-ITMS Program is the application of the RHODES strategy for the two intersections of a freeway-arterial diamond interchange. This report addresses the latest phase of the RHODES-ITMS Program that resulted in a field test in the City of Tempe, Arizona. In summary, this phase involved: (i) the integration of the RHODES logic within the signal controller; (ii) the validation of the RHODES logic using "hardware-in-the-loop" simulation; (iii) the integration of the RHODES algorithms within Tempe's traffic management system; (iv) the deployment of RHODES for the field test; and (v) the data gathering and evaluation of traffic performance "with" and "without" the RHODES logic
Author: Larry Head
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 184
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Book Description
This report documents the work performed on the RHODES Project Phase II(a) which is a continuation of the RHODES Project Phase I. Phase I explored concepts for models and algorithms for real-time traffic- adaptive control systems for street networks. Phase II(a) focused on further development of some of these algorithms and on performing some preliminary laboratory experiments with these algorithms using simulation models. The control architecture of RHODES is based on a hierarchical decomposition of the overall traffic control problem with three levels in the control hierarchy: network load control network flow control, and intersection control.
Author: Douglas Gettman
Publisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 216
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Book Description
The RHODES-ITMS Corridor Control project addresses real-time control of ramp meters of a freeway segment, with consideration of the traffic volumes entering and leaving the freeway from/to arterials, and the regulation of these volumes via real-time setting of ramp metering rates.
Author:
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 926
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Book Description
Author: Larry Head
Publisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 72
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Book Description
This report documents the work performed and the results obtained on the RHODES - Integrated Traffic Management System (ITMS) Project. The project addressed the design and development of a real-time traffic adaptive control system for Freeway-Arterial Diamond Interchanges using the concepts underlying the RHODES traffic-adaptive signal control system. The traffic "controls" at a diamond interchange are the two sets of traffic signals located at the arterials, on both sides of the freeway, and the ramp meters at the on-ramps to the freeway. The RHODES-ITMS strategy considers, in real-time, the vehicle arrivals and the queues at the intersections and the on-ramps to optimally set these signals, also in real time, to decrease the overall delay of all the vehicles which use the arterials, the frontage roads parallel to the freeway (if they exist) and the ramps at the interchange
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309124654
Category : Social Science
Languages : en
Pages : 501
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Book Description
The assessment of young children's development and learning has recently taken on new importance. Private and government organizations are developing programs to enhance the school readiness of all young children, especially children from economically disadvantaged homes and communities and children with special needs. Well-planned and effective assessment can inform teaching and program improvement, and contribute to better outcomes for children. This book affirms that assessments can make crucial contributions to the improvement of children's well-being, but only if they are well designed, implemented effectively, developed in the context of systematic planning, and are interpreted and used appropriately. Otherwise, assessment of children and programs can have negative consequences for both. The value of assessments therefore requires fundamental attention to their purpose and the design of the larger systems in which they are used. Early Childhood Assessment addresses these issues by identifying the important outcomes for children from birth to age 5 and the quality and purposes of different techniques and instruments for developmental assessments.
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309452058
Category : Science
Languages : en
Pages : 231
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Book Description
Between 1973 and 2016, the ways to manipulate DNA to endow new characteristics in an organism (that is, biotechnology) have advanced, enabling the development of products that were not previously possible. What will the likely future products of biotechnology be over the next 5â€"10 years? What scientific capabilities, tools, and/or expertise may be needed by the regulatory agencies to ensure they make efficient and sound evaluations of the likely future products of biotechnology? Preparing for Future Products of Biotechnology analyzes the future landscape of biotechnology products and seeks to inform forthcoming policy making. This report identifies potential new risks and frameworks for risk assessment and areas in which the risks or lack of risks relating to the products of biotechnology are well understood.
Author:
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 524
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Book Description
Contains summaries of current U.S. intelligent transportation systems projects.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309092086
Category : Education
Languages : en
Pages : 333
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Book Description
Learning to Think Spatially examines how spatial thinking might be incorporated into existing standards-based instruction across the school curriculum. Spatial thinking must be recognized as a fundamental part of Kâ€"12 education and as an integrator and a facilitator for problem solving across the curriculum. With advances in computing technologies and the increasing availability of geospatial data, spatial thinking will play a significant role in the information-based economy of the twenty-first century. Using appropriately designed support systems tailored to the Kâ€"12 context, spatial thinking can be taught formally to all students. A geographic information system (GIS) offers one example of a high-technology support system that can enable students and teachers to practice and apply spatial thinking in many areas of the curriculum.
Author: Liesl Clark
Publisher: Atria Books
ISBN: 1982113804
Category : House & Home
Languages : en
Pages : 288
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Book Description
In the spirit of The Gentle Art of Swedish Death Cleaning and The Joy of Less, experience the benefits of buying less and sharing more with this accessible 7-step guide to decluttering, saving money, and creating community from the creators of the Buy Nothing Project. In their island community, friends Liesl Clark and Rebecca Rockefeller discovered that the beaches of Puget Sound were spoiled by a daily influx of plastic items and trash washing on shore. From pens and toothbrushes to toys and straws, they wondered, where did it all come from? Of course, it comes from us—our homes, our backyards, our cars, and our workplaces. And so, a rallying cry against excess stuff was born. In 2013, they launched the first Facebook Buy Nothing Project group in their small town off the coast of Seattle, and they never expected it to become a viral sensation. Today there are thousands of Buy Nothing groups all over the world, boasting more than a million members, and 5,000 highly active volunteers. Inspired by the ancient practice of gift economies, where neighbors share and pool resources,The Buy Nothing, Get Everything Plan introduces an environmentally conscious 7-step guide that teaches us how to buy less, give more, and live generously. At once an actionable plan and a thought-provoking exploration of our addiction to stuff, this powerful program will help you declutter your home without filling landfills, shop more thoughtfully and discerningly, and let go of the need to buy new things. Filled with helpful lists and practical suggestions including 50 items you never need to buy (Ziploc bags and paper towels) and 50 things to make instead (gift cards and salad dressing), The Buy Nothing, Get Everything Plan encourages you to rethink why you shop and embrace a space-saving, money-saving, and earth-saving mindset of buying less and sharing more.
