A flashing yellow arrow signal is a type of signal placed over the left-turn lane at an intersection. It provides a safer, more efficient left-turn for motorists, and will replace the flashing red left-turn signals that are common throughout Michigan.

Studies show this type of signal helps prevent crashes, move more traffic through an intersection, and provide additional traffic management flexibility for road agencies.

HAWK signals provide safer crossing alternatives for people walking and biking than traditional crosswalks, especially in mid-block locations with heavy demand. Because the devices are only activated when walkers or bikers are present, people driving experience minimal delays. Providing a protected countdown crosswalk means easier and safer crossings for pedestrians and bicyclists. 

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Traditional traffic signals can get visually "lost" against the sky. Adding a black backplate and face increases daytime signal visibility by 33 percent. In addition, adding a reflectorized border to the backplate enhances signal visibility even more - especially at night.

This safety countermeasure can also help during periods of power outages when the signals would otherwise be dark, providing a visible cue for motorists to stop at the intersection ahead.

Countdown pedestrian signals display the number of seconds before the walk signal changes. This allows pedestrians to judge whether they have time to cross the street before the signal changes, as well as adjust their speed when crossing.

Knowing whether to finish crossing the intersection or waiting until the next light to enter the intersection means safer crossings for pedestrians and motorists.

RRFBs can be installed to accompany a pedestrian warning sign to enhance pedestrian visibility and increase driver awareness at uncontrolled, marked crosswalks.

RRFBs consist of two, rectangular- shaped yellow indications, each with a light-emitting source. They flash with an alternating high frequency when activated.