10.2 SR 09-18-2023 - Laserfiche WebLink

Home Browse Search

■ Limited visibilityT on approach to an intersection or roadwayT condition requiring warning, as determined by the sight distance criteria foY Warrant 1 in Section 9- 4.02.012 in the Traffic Engineering Manual. ■ A historyT of crashes documented to be caused by a failure to stop or adherence to warning, and deemed preventable byT implementation of conspicuity improvements. Speed Feedback Signs These signs provide a real-time dynamic display of the driver's vehicular speed at the location wheYe speeding and safet�r has been documented as a pYoblem. When considering use of these signs, at least fouY (4) of the following conditions must be met: ■ The 85`i' peYcentile speed exceeds the posted speed limit by at least 5 MPH during the time period of concerri. ■ A speed transition aYea e�sts. ■ The area of interest is within the vicinityT of a school or other high pedestrian traffic area. ■ The posted speed is 40 MPH or less. ■ The road is under cityT jurisdiction. Installation may be considered when three (3) of the above five (5) conditions are met, and cYash data and documented repeat lane depaYtuYes can clearly be linked to excessive speed in the area of interest. Speed Feedback Signs shall also meet the following technical specifications when implemented: ■ Installation must be used in conjunction with the traditional speed limit sign. ■ When activated, the sign displa�T shall give drivers immediate feedback on their individual driving speed. ■ When traveling above the posted speed limit, the sign shall rapidly flash or have other dynamic elements. ■ When installed in association `vith school speed zones, the Speed Feedback Signs shall operate onlyT when the school speed zone is in effect. ■ The installation shall not interfere with the visibilityT and general effectiveness of anyT other signs in the area. Rectangular Rapid Flashing Beacons (RRFBs) RRFBs are user-actuated LEDs that supplement warning signs to increase awareness of a pedestrian crossing location. TheyT are activated byT a push button `vhich triggers the LEDs to displayT an irregular flash pattern which can help alert drivers of the approaching crosswalk. Prior to implementing RRFBs, the following conspicuityT improvement alternatives shall first be considered: ■ Add crosswalk pavement markings. ■ Install an advanced warning sign on approach to the crosswalk. ■ Increase the size of the e�sting signage. ■ Install a second sign of equal or lesseY size on the left-hand side of the Yoad (if allowed byT �IN MUTCD). �