USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Engineering

pg 324-327: Transportation Planning Handbook

This is a reference for practicing transportation professionals involved with the administrative, technical and legal aspects of transportation planning. It is a must for anyone in the governmental, consulting and educational fields working with the planning of the transportation infrastructure. Written by 22 highly respected authors in the field of transportation, and reviewed by leading transportation professionals, the new edition breaks chapters down into three categories: basic understanding, application contexts and strategy-specific planning.

Roundabout: Proven Safety Countermeasures Best Practices and Recommendations Reports

In January 2012, FHWA issued a “Guidance Memorandum on Promoting the Implementation of Proven Safety Countermeasures”. This guidance takes into consideration the latest safety research to advance a group of countermeasures that have shown great effectiveness in improving safety. Safety practitioners are encouraged to consider this set of countermeasures that are research-proven, but not widely applied on a national basis.

Bicyclists: Rumble Strips and Rumble Stripes

Safe accommodation of all road users can be considered when designing and applying rumble strips. Rumble strips are primarily a safety device for passenger vehicles. For other road users, particularly bicyclists, they may cause concerns. A part of the success in accommodating the variety of road users present on our roadways is the use of flexibility in the design and placement of rumble strips.

Pg 27-46: Urban Bikeway Design Guide

The purpose of the NACTO Urban Bikeway Design Guide (part of the Cities for Cycling initiative) is to provide cities with state-of-the-practice solutions that can help create complete streets that are safe and enjoyable for bicyclists.

Pg 45-48: Achieving Multimodal Networks: Applying Design Flexibility and Reducing Conflicts

Multimodal transportation networks provide access to jobs, education, health care, recreation, transit, and other essential services in urban, suburban, and rural areas throughout the United States. Interconnected pedestrian and bicycle infrastructure makes walking and bicycling a viable transportation choice for everyone and this contributes to the health, equity, and quality of life of our communities. This publication is a resource for practitioners seeking to build multimodal transportation networks.

Pg 7-20: Separated Bikeways

The purpose of this report, developed by the ITE Pedestrian and Bicycle Council, is to present existing information about separated bikeways, consider the current and potential utility of separated bikeways in the United States and Canada, and promote the development of research statements for further investigation of the application, safety, and mobility performance of separated bikeways. Separated bikeways are one- or two-way exclusive bikeways parallel to the roadway yet physically separated from moving traffic by different vertical buffers.

Search: Grade Separated: Crash Modification Factors Clearinghouse

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.

Search: Cycle Tracks: Crash Modification Factors Clearinghouse

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.

Pg 41-58: Separated Bike Lane Planning and Design Guide

This Separated Bike Lane Planning and Design Guide outlines planning considerations for separated bike lanes (also sometimes called “cycle tracks” or “protected bike lanes”) and provides a menu of design options covering typical one and two-way scenarios. It highlights different options for providing separation, while also documenting midblock design considerations for driveways, transit stops, accessible parking, and loading zones. It provides detailed intersection design information covering topics such as turning movement operations, signalization, signage, and on-road markings.