Sedona, AZ adds solar-powered driver feedback sign through Governor's Safety Grant
TEMPE, AZ - 05/02/2008 - One street in the scenic city of Sedona is now safer due to the addition of a solar-powered Driver Feedback (DFB) sign to help slow speeding motorists.
The project began with complaints from local residents, John and Carole
Sheffield, of noise from speeding vehicles. With permission from the city,
the Sheffields documented the speeding situation on Dry Creek Road using the
city's mobile radar speed trailer. Data showed a significant number of
vehicles traveling well above the posted 25 mph, with some in excess of 50
By applying for a Governor's Safety Grant through the police department,
funds were granted for one system installed on the roadway. Working with
personnel from the police department, John Sheffield assembled the unit and
installed it near a curve on the road. For higher contrast, the concerned
parties selected the 3M DFB unit which features shuttered pixels and LEDs to
display the speed of the approaching vehicles. Solar Traffic Controls
furnished the pole assembly and the solar-powered system.
Mr. Sheffield and the city have followed up on the performance of the system
using the city's mobile speed trailer for data logging. With the sign
registering data approximately 200-feet behind the DFB sign, the average
speed of the vehicles has dropped closer to the posted speed limit. Most
notably there has been a higher percentage drop of vehicles traveling 40 mph
The city and the Sheffields are so satisfied they have submitted paperwork
for another Governor's Safety Grant for a unit to monitor the opposite
approach on Dry Creed Road.
Solar Traffic Controls (STC) provides solar-powered traffic control systems
to city, state and federal DOTs; police, firefighting, industrial facilities
and public works departments. Primary products are solar-powered flashing
beacon systems used for school zones and 24-hour applications. For more
information, please call 480-449-0222.
For information about the radar sign, go to www.mmm.com or contact Tim
Gibson, 3M sales group in Phoenix through the 3M Website.