An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
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.
The Transportation Research Board's (TRB) fifth edition of the Highway Capacity Manual (HCM 2010), incorporates results from more than $5 million of research completed since the publication of the HCM2000. This latest edition significantly updates the methodologies that engineers and planners use to assess the traffic and environmental effects of highway projects.
The Transportation Research Board's (TRB) fifth edition of the Highway Capacity Manual (HCM 2010), incorporates results from more than $5 million of research completed since the publication of the HCM2000. This latest edition significantly updates the methodologies that engineers and planners use to assess the traffic and environmental effects of highway projects.
The Transportation Research Board's (TRB) fifth edition of the Highway Capacity Manual (HCM 2010), incorporates results from more than $5 million of research completed since the publication of the HCM2000. This latest edition significantly updates the methodologies that engineers and planners use to assess the traffic and environmental effects of highway projects.
The objective of this project was to develop revised operational analysis procedures for transportation facilities with pedestrian and bicyclist users. This document contains both new and revised procedures for analyzing various types of exclusive and mixed–use bicycle facilities. These procedures are recommended to determine the level of service for bicycle facilities on the basis of previous domestic and international bicycle operations research conducted to date. This document only addresses procedures for streets, roads, and intersections with designated bicycle facilities.
The objective of this project is to develop revised operational analysis procedures for transportation facilities with pedestrian and bicyclist users. This document describes the effects of pedestrians and bicyclists on the capacity of signalized intersections. These procedures augment the existing Highway Capacity Manual signalized intersection Level of Service procedures for locations with substantial pedestrian and/or bicycle traffic conflicting with vehicular turning movements.
The objective of this project is to develop revised operational analysis procedures for transportation facilities with pedestrian and bicyclist users. This document describes the effects of pedestrians and bicyclists on the capacity of signalized intersections. These procedures augment the existing Highway Capacity Manual signalized intersection Level of Service procedures for locations with substantial pedestrian and/or bicycle traffic conflicting with vehicular turning movements.
A Policy on Geometric Design of Highways and Streets, 6th Edition, 2011, commonly referred to as the “Green Book,” contains the current design research and practices for highway and street geometric design. The document provides guidance to highway engineers and designers who strive to make unique design solutions that meet the needs of highway users while maintaining the integrity of the environment. It is also intended as a comprehensive reference manual to assist in administrative, planning, and educational efforts pertaining to design formulation.
The need to provide improved consistency and quality of pedestrian traffic control devices has become more important with the implementation of the Americans with Disabilities Act of 1990 (ADA), which was passed to eliminate barriers to employment, transportation, public accommodations, public services, and telecommunications. The ADA requires that pedestrians with physical and/or mental disabilities be accommodated not only in completed facilities, but also during times of construction.
The need to provide improved consistency and quality of pedestrian traffic control devices has become more important with the implementation of the Americans with Disabilities Act of 1990 (ADA), which was passed to eliminate barriers to employment, transportation, public accommodations, public services, and telecommunications. The ADA requires that pedestrians with physical and/or mental disabilities be accommodated not only in completed facilities, but also during times of construction.
The need to provide improved consistency and quality of pedestrian traffic control devices has become more important with the implementation of the Americans with Disabilities Act of 1990 (ADA), which was passed to eliminate barriers to employment, transportation, public accommodations, public services, and telecommunications. The ADA requires that pedestrians with physical and/or mental disabilities be accommodated not only in completed facilities, but also during times of construction.