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FHWA Home / Safety / Intersection / Intersection Safety

Intersection Safety

Short Version

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Photo of a multi-vehicle crash at a signalized intersection with EMS and police responders on the scene.


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slide notes:

This is an approximately 30-minute presentation on the topic of safety at intersections. The presentation is intended to relay safety issues at intersections (including the typical types of crashes) along with some techniques to address these issues. Specific topics covered include:

This presentation is a summary on intersection safety and is one of a series of five presentations on intersection safety issues. The other presentations address in particular:

More details, including countermeasure effectiveness information, can be found in these four presentations.

A longer 60-minute version of this presentation is also available that includes more information on national data statistics and FHWA research efforts.



slide 2


Intersections

Traffic photo of a ninety degree collision between two vehicles in an intersection.


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slide 3


National Statistics

Stacked bar chart shows that total highway fatalities has remained fairly steady over the past 11 years.

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slide 4


National Statistics

Pie chart shows that 79 percent of fatalities occur at non-intersections and 21 percent occur at intersections.


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slide 5


Intersection Fatalities

Image indicates that 39 persent of intersection fatalities occur in rural areas and 61 percent occur in urban areas.  Chart breaks down total fatalities by arterial road (5,232), collector (1,472), local road (1,739), and unknown (214).


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slide 6


State Statistics

Map indicates the number of fatal crashes (not individual fatalities) that occurred in each state that were classified as either 'intersection' or 'intersection-related' in the 2007 FARS database.

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slide 7


Red Light Running

Fatalities Attributed to Red Light Running
Chart shows fatalities attributed to red-light running over the period 2000 to 2007. The trend has remained generally consistent during the period, with fatalities remaining in the 800 to 1000 range, although there is a notable dip in fatalities in 2005 to below 800.


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slide 8


Pedestrians

2007 Pedestrian Fatalities at Intersections
Chart indicates total pedestrian fatalities for 2007 was 1,152. The age groups with the highest fatalities were the 45-54 and over 74 groups, with the second highest fatalities occurring in the 35-44, 55-65, and 65-74 age groups; and the third most fatalities occurring in the 25-34 age group.


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slide 9


Crash Type Distribution

Pie chart shows that 45 percent of crashes are right angle-crashes, 17 percent are pedestrian/bicycle crashes, 13 percent are single vehicle (object) crashes, 14 percent are opposite direction crashes, 6 percent are rear-end crashes, 3 percent are sideswipe crashes, and 2 percent are other crashes.


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slide 10


Crash Reduction Factors

Image of the cover of the 'Desktop Reference for Crash Reduction Factors.'   Cover shot of the FHWA document 'Toolbox of Countermeasures and Their Potential Effectiveness to Make Intersections Safer.' and a link to the FHWA Report Center at report.center@dot.gov


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slide 11


Techniques for Improving Safety


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slide 12


Increasing Visibility

Collage of images including a photo of an intersection featuring one signal head per lane, a photo of a 12 inch lens on a signal head, signal heads with back plates, and the covers of NCHRP Report 500 and an FHWA publication on low-cost safety enhancements for intersections.


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slide 13


Increasing Visibility

Collage of images including a photo of oversized Stop signs at a multi-lane highway crossing, supplemental streetlights on a rural roadway, and the covers of NCHRP Report 500 and an FHWA publication on low-cost safety enhancements for intersections.


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slide 14


Increasing Awareness

Collage of photos including an advance signal ahead warning sign, a splitter island at the approach to a T intersection, Stop Ahead pavement markings, and the a screenshot of a new FHWA document on low-cost improvements for stop-controlled and signalized intersections.


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slide 15


Improving Design

Collage of photos depicting a roundabout, a roadway redesigned to reduce skew, and pavement remarking to create dedicated turn lanes on a rural road. Image also contains screenshots of two publications on roundabouts.


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slide 16


Improving Design

Photos of a channelized turn lane and a closed driveway near an intersection as well as an image of a CD labeled 'Access Management Manual.'


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slide 17


Improving Comprehension

Two photos, one in which overhead signs guide drivers to the correct lane for the route they wish to take, one of an aerial photo of a complex intersection featuring turn markings on the pavement to guide turning vehicles through the intersection and into the correct lane.


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slide 18


Improving Operations

Collage of images indicating improved operations through light phasing (improved signal timing), modified change intervals, and signal coordination. Collage also includes a screenshot of the new FHWA Signal Timing Manual.

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slide 19


Improving Operations

Collage of images including a pedestrian countdown signal head, a sign next to a signal head warning of turn restrictions, a worker removing a signal, and a screenshot of the cover of an FHWA signalized intersection informational guide.


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slide 20


Improving Sight Distance

Collage of images depicting an intersection where overgrown shrubbery on the corner prevents adequate sight distance to stopped or turning vehicles, an offset turn lane, and a screenshot of the cover of an FHWA publication on intersection safety and design.


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slide 21


Improving Compliance

Collage of images including enforcement lights, a sign warning of automated photo enforcement at a signal ahead, a police officer writing a ticket, and the cover of an FHWA publication on making intersections safer.


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slide 22


Information and Education

Collage of images depicting web sites, printed material, and a speed trailer. Other educational opportunities exist in school programs, radio and TV, and community outreach.

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slide 23


Training Opportunities

National Highway Institute logo.  http://nhi.fhwa.dot.gov/


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slide 24


For More Information


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Page last modified on September 4, 2014.
Safe Roads for a Safer Future - Investment in roadway safety saves lives
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000