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A blueprint for designing 21st century streets, the Guide unveils the toolbox and the tactics cities use to make streets safer, more livable, and more economically vibrant. The Guide outlines both a clear vision for complete streets and a basic road map for how to bring them to fruition.
This document is a resource to help transportation practitioners consider and make informed decisions about tradeoffs relating to the selection of bikeway types. This report highlights linkages between the bikeway selection process and the transportation planning process. This guide presents these factors and considerations in a practical processoriented way. It draws on research where available and emphasizes engineering judgment, design flexibility, documentation, and experimentation.
A blueprint for designing 21st century streets, the Guide unveils the toolbox and the tactics cities use to make streets safer, more livable, and more economically vibrant. The Guide outlines both a clear vision for complete streets and a basic road map for how to bring them to fruition.
A crash modification factor (CMF) is a multiplicative factor used to compute the expected number of crashes after implementing a given countermeasure at a specific site. The Crash Modification Factors Clearinghouse houses a Web-based database of CMFs along with supporting documentation to help transportation engineers identify the most appropriate countermeasure for their safety needs. Using this site, you can search to find CMFs or submit your own CMFs to be included in the clearinghouse.
TRB’s National Cooperative Highway Research Program (NCHRP) Report 600: Human Factors Guidelines for Road Systems: Second Edition provides data and insights of the extent to which road users’ needs, capabilities, and limitations are influenced by the effects of age, visual demands, cognition, and influence of expectancies. NCHRP Report 600 provides guidance for roadway location elements and traffic engineering elements. The report also provides tutorials on special design topics, an index, and a glossary of technical terms.
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This document highlights case studies of projects that contribute to safe and connected pedestrian and
bicycle networks in States and communities throughout the U.S., while at the same time providing
resiliency and green infrastructure benefits that promote resiliency and relieve burdens on stormwater
systems. The case studies included in the report are organized in the following categories: (1) Mitigating
Flood Risk, (2) Public-Private Partnerships, (3) Multimodal Network Connectivity, and (4) State and Locally
Driven Projects.
A basic requirement of work zone traffic control, as provided in the Manual on Uniform Traffic Control Devices (MUTCD), is that the needs of pedestrians, including those with disabilities, must be addressed in temporary traffic control plans (TCPs) in accordance with the Americans with Disabilities Act of 1990 (ADA), Title II, Paragraph 35.130. The ADA is a Federal law that requires that pedestrians with physical and/or mental disabilities be accommodated not only in completed, publicly accessible facilities, but also during times of construction or improvement.
The Handbook augments the 2009 Edition of the Manual on Uniform Traffic Control Devices (MUTCD). The Traffic Control Devices Handbook, 2nd Edition provides guidance and information to implement the provisions of the MUTCD. The objective of the Handbook is to bridge the gap between the MUTCD requirements and field applications. Additional guidance is provided on the new MUTCD requirements to clarify these MUTCD provisions. The Handbook does not establish policy, procedures, or standards for an agency, or set the "standard-of-care" for decisions on traffic control devices.