problem addressed : feedback to crossing pedestrian

Device:

    Count-down signals are used in conjunction with conventional pedestrian signals to provide information to the pedestrian regarding the amount of time remaining to safely cross the street. It is hypothesized that pedestrians will use this information to make better decisions about when to enter the crosswalk. Depending on user preference, the count-down timer starts either when the WALK or Walking Person indication appears or when the flashing DONT WALK or Hand indication appears. The timer continues counting down through the flashing DONT WALK (Hand) clearance interval. When the steady DONT WALK or Hand appears, the countdown signal will be at zero.

Connection Speed? 28.8 / 56.6 / T1> The count-down signal provides the pedestrian with the number of seconds remaining to safely cross the street.

    Currently, there are two types of countdown signals being manufactured. The first type is a unit containing two signal heads, with one of the heads displaying the count-down timer and the other displaying the Walking Person/Hand indications. The second type of signal is a single-head unit that contains both the count-down timer and pedestrian signal indications in one unit.

Count-Down signals are presently installed in a number of cities throughout the U.S. and Canada, including:Sacramento, CA