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Pedestrian Signal Safety - AAA Foundation for Traffic Safety

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102<br />

Table A-3. Locations where countdown signals should not be used.<br />

Table A-3. Locations where countdown signals should not be used.<br />

Item Number<br />

Percentage<br />

of total<br />

Use in all cases. 25 40.3<br />

Low pedestrian activity; intersections that do not contain<br />

the required pedestrian demographics.<br />

Wide streets; if streets are too wide, pedestrians may<br />

not have a clue how long it would take to cross, so the<br />

numbers displayed could be meaningless. In these<br />

cases, education could address this potential issue.<br />

Short crossings/narrow roadways with less than three<br />

lanes to cross.<br />

Smaller, two-phase intersections with one lane per<br />

direction.<br />

11 17.7<br />

6 9.7<br />

Funding/cost to acquire/maintain. 5 8.1<br />

Do not use if planning to reduce the pedestrian<br />

clearance phase during preemption.<br />

3 4.9<br />

Where preempt programming may override countdown<br />

operations.<br />

High vehicular speeds. 2 3.2<br />

Where there are no crossing facilities <strong>for</strong> pedestrians 1 1.7<br />

Do not use with signals where the WALK time varies<br />

due to coordination if the countdown begins with the<br />

WALK display (unless the countdown signal technology<br />

has addressed this issue).<br />

Alternatively, tell pedestrians how long they have to wait<br />

rather than scare them into clearing the road.<br />

1 1.6<br />

1 1.6<br />

Where motorists have a clear view of the timer display. 1 1.6<br />

Difficult to use on a main street <strong>for</strong> a side street<br />

crossing.<br />

On main streets; crossing the shorter distance of the<br />

1 1.6<br />

side street. There is the concern that the driver on the<br />

main street may use them to determine the onset of<br />

amber and possibly try to beat the light.<br />

1 1.6<br />

Do not use where the WALK indication is included in the<br />

countdown.<br />

1 1.6<br />

Areas where pedestrians are predominantly mobile;<br />

FDW becomes meaningless.<br />

1 1.6<br />

Long cycle lengths. 1 1.6<br />

Audible pedestrian signal locations. 1 1.6<br />

TOTAL 62 100.0<br />

116

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