Efficacy of Rectangular-shaped Rapid Flash LED Beacons

Appendix 1

Pedestrian Crosswalk Installation Criteria

Warrant Worksheet for Installation of a Crosswalk at an Uncontrolled Location.

All of the following 5 criteria must be met before marking a crosswalk at an uncontrolled location.

1. Does the pedestrian count exceed 24 pedestrians per hour during any two hours of the day or is it used by 12 or more children under 16, seniors, or persons with reduced mobility during any two hours of the day?	Yes ___	No ___
2. Are vehicle traffic counts over 300 vehicles per hour during times when most pedestrians are present or pedestrian motor vehicle conflicts exceed 5% of crossing when vehicles are present (see Appendix 3), or more than one pedestrian has been struck at that location in the past 10 years.	Yes ___	No ___
3. Is the next protected crossing more than 300 ft away.	Yes ___	No ___
4. Is the stopping distance for vehicles traveling at the mode speed less than 235 feet?	Yes ___	No ___

Note: This distance should be calculated using the signal timing formula. This corresponds to a mean or mode speed of 40 mph with no grade. Crosswalks should not be installed at uncontrolled locations if the stopping distance for vehicles traveling at the mean or mode speed is greater than 234 feet. Options include slowing vehicle speeds through traffic calming measures or speed enforcement.

5. Is the 85th percentile speed less than 45 mph?	Yes ___	No ___

5. Is the 85th percentile speed less than 45 mph?

Yes ___

No ___

Enhancement Installation Criteria

Warrant Worksheet for Installation of an Intelligent Transportation System at a Crosswalk at an Uncontrolled Location.

If any two of the following questions are answered yes the Intelligent Transportation System Crosswalk Installation is warranted. The data and questions are ordered in terms of ease of data collection.

Number or lanes carrying through traffic in each direction.

First direction	__________________
Second direction (not relevant if one-way)	__________________
1. Does the pedestrian need to cross more than two lanes of traffic?	Yes ___	No ___
Daytime ADT (between 8:00 AM and 6: PM)	__________________
2. Does the hourly daytime two way traffic volume exceed 400 vehicles per hour?	Yes ___	No ___
Mode vehicle speed	__________________
3. Is the mode vehicle speed greater than 35 mph?	Yes ___	No ___
Percentage of pedestrians that are involved in a motor vehicle-pedestrian conflict per 100 crossings with vehicles present that involved an evasive action by the driver, the pedestrian or both.	__________________
Percentage of pedestrians crossing while vehicles were present who were trapped in the center of the roadway for more than 6 seconds.	__________________
4. Is the percentage of motor vehicle pedestrians conflicts greater than 2.5% ?	Yes ___	No ___
Is the percentage of pedestrians trapped in the roadway greater than 5%?	Yes ___	No ___