Intersection Countermeasures

Cost Effective Safety Engineering Countermeasures Help Reduce Intersection Crashes 

FDOT District Two Community Traffic Safety Program in Northeast Florida continues the educational series of proven safety countermeasures. These five informational pieces help explain intersection countermeasures. The traffic safety strategies and treatments of roadway markings and traffic lights at intersections reduce serious injury and fatal crashes. They are based on proven measures of effectiveness by the Federal Highway Administration (FHWA).

Click on the five educational Intersection Countermeasure cards below to download a copy. They may be printed or shared digitally through email or social media with our Northeast Florida Traffic Safety Teams, communities and agencies.

Motorists and other road users, including pedestrians and cyclists, cross paths at intersections. This is where the greatest potential for roadway conflicts exist. Turning, changing lanes and traveling through intersections are among the most complex in the transportation system. They require appropriate roadway design, signage, traffic control devices, lighting, and other safety measures. Innovative safety improvements and operations at signalized and unsignalized intersections can help enhance everyone’s safety.

Click here for a PDF document of these intersection countermeasures used in Northeast Florida, provided by the FDOT District Two Community Traffic Safety Program.

Traffic Safety Countermeasures that Work in Reducing Intersection Crashes:

1. Roundabouts Reduce Severe Crashes

Roundabouts are a circular intersection that feature channelized approaches and a center island that safely and efficiently moves traffic. Motorists entering the roundabout yield to vehicles already circulating which leads to improved operational performance. Roundabouts are an effective countermeasure resulting in lower speeds and fewer conflict points.

2. Backplates with Retroreflective Borders

Backplates are a low cost countermeasure being introduced in Northeast Florida on traffic signal heads to improve visibility of the illuminated face. The dark backplate provides a controlled-contrast background. The framing with a retroreflective border makes the signal easily seen in both daytime and nighttime conditions. This treatment enhances visibility for aging motorists and color vision deficient drivers, and is also beneficial during power outages or inclement weather, providing a visible cue for all motorists.

3. Left and Right Turn Lanes at Intersections Reduce Severe Crashes

Left or right auxiliary turn lanes provide measurable safety and operational benefits at intersections, reducing the number of crashes. Turn lanes give a physical separation between slower turning traffic and the free flowing main route of traffic. They provide space for deceleration prior to a turn and storage for vehicles that have stopped and are waiting to complete a turn.

4. Well-Timed Yellow Change Intervals Reduce Red-Light Running 

Red-light running is a leading cause of severe crashes at signalized intersections, and it is critical that the length of time a yellow signal is displayed following a green signal is appropriately timed. If the yellow light changes too quickly, motorists may be unable to stop safely and cause unintentional red-light running. If the yellow light changes too slowly, this may result in drivers treating the yellow signal as an extension of the green phase and invite intentional red-light running.

5. Benefits of the Flashing Yellow Arrow Left Turn Signal

Fewer crashes and better traffic flow are benefits of the flashing yellow left turn arrows as an effective engineering countermeasure. The updated design of left turn signals with a flashing yellow arrow creates a safer, more efficient left turn at intersections. When the flashing yellow arrow is illuminated, drivers must first yield to oncoming traffic and pedestrians, then they may proceed to turn with caution. This new signal system presents motorists with a more direct message and reduces confusion by replacing the green ball with the yellow and green left turn arrows so the display is not the same as the adjacent thru lane. 

Drive to Save Lives

U R The Key: Drive to Save Lives tour at area high schools

Jacksonville and St Augustine – Cara Filler presented her Drive To Save Lives to many of our local high school students. Cara’s identical twin sister was killed in a crash while driving with her boyfriend, who was speeding and showboating. Cara uses her personal tragedy to educate teens in a positive and “doesn’t feel like learning” way on how to be a safe passenger, how to get out of driving with an impaired or dangerous driver, and how to take personal charge of your own safety.

“Your life. Your choice.”

Car crashes continue to be the number one cause of death for our teens. Having this amazing, national speaker available to our schools for free to discuss the importance of teen traffic safety was priceless. Special thanks go out to Florida SADD with grants from State Farm and the Florida Teen Safe Driving Coalition for making these life-saving presentations happen at eight of our schools.

Our Community Traffic Safety Team and other educational outreach of groups like SADD and the Teen Safe Driving Coalition continue to do all that we can to drive down teen deaths on our roadways. Our community leaders and partners help ensure teen drivers are provided with the information, motivation and tools that will keep them safe on the road.

Cara is a natural speaker, engaging and memorable. This powerful tour will not be forgotten by the students. The video, recorded and produced by Favorite Studios, is only a highlight of the full presentation which lasted about an hour. There was such an enthusiastic response from students and faculty, we can hope to see more of these teen safety events in the future.