Studies & Policy BriefsStudies & Policy Briefs

Bicycle and Pedestrian Safety Needs at Grade-Separated Interchanges (pdf, 2.79 MB)

This report from the New Jersey Bicycle and Pedestrian Resource Center examines challenges faced by bicyclists and pedestirans at grade-separated highway interchanges.

High Performance Infrastructure Guidelines

Best Practices for Public Right-of-Way Design from the New York City Department of Design and Construction with the Design Trust for Public Space

How Land Use and Transportation Systems Impact Public Health

This review discusses how urban form affects public health, specifically through the ways in which the built environment encourages or discourages physical activity levels.

Improving Pedestrian Safety at Unsignalized Crossings

A research project jointly sponsored by the TCRP and the NCHRP examining treatements for unsignalized pedestrian crossings.

Interim Report to the U.S. Congress on the Nonmotorized Transportation Pilot Program SAFETEA-LU Section 1807

This interim report to Congress summarizes the progress and initial results of the Federal Highway Administration's (FHWA) and the four pilot communities' participation in the Nonmotorized Transportation Pilot Program (NTPP) from its inception through May 2007.

Lane Widths, Channelized Right Turns, and Right-Turn Deceleration Lanes in Urban and Suburban Areas

This study examines design guidance or criteria addressing the safety and operational tradeoffs for motorists, pedestrians, and bicyclists on urban and suburban arterials and collectors with speeds of 45 mph or less.

Manual on Uniform Traffic Control Devices

The Manual on Uniform Traffic Control Devices, or MUTCD, defines the standards used by road managers nationwide to install and maintain traffic control devices on all streets and highways.

Relationship of Lane Width to Safety for Urban and Suburban Arterials (pdf, 177.01 KB)

This research investigates the relationship between lane width and safety for roadway segments and intersection approaches on urban and suburban arterials.

Roundabouts in the United States

This report presents methods of estimating the safety and operational impacts of roundabouts and updates design criteria for them.

Safety and Operational Characteristics of Two-Way Left Turn Lanes

The objective of this research was to evaluate the safety and operational characteristics of three-lane cross-sections with a TWLTL compared to four-lane undivided roadways.

Safety Effects of Marked Vs. Unmarked Crosswalks at Uncontrolled Locations

A summary of the results of a study that examined the safety of crosswalks at uncontrolled crossing locations and provides recommended guidelines for pedestrian crossings.

Special Report: Accessible Public Rights-of-Way Planning and Design for Alterations

The focus of this report is on improvement projects in the public right-of-way that are classified as alterations under the ADA.

Speed on Streets With Bicycle Lanes

Minnesota Statutory language governing the setting of speed limits on roadways with bicycle lanes.

Three Lane Conversions (Road Diets)

Resource summary from Community Design group examining conversion of existing four lane roads to three lanes to create more inviting pedestrian environments, calm traffic, and increase safety.

Traffic fatalities and injuries: the effect of changes in infrastructure and other trends (pdf, 114.68 KB)

An analysis of how various road infrastructure improvements affect traffic-related fatalities and injuries is conducted while controlling for other factors known to affect overall safety.

Using GIS to Design On-Street Bicycle Routes (pdf, 1.25 MB)

This work examines the Clark Index formula, showing how inputs to the formula might affect the decision making process.

Walking in Minnesota (pdf, 83.12 KB)

A fact sheet from the Surface Transportation Policy Partnership (STPP) containing statistics on pedestrian travel in Minnesota.