March 2016 615
Page 1 of 3
Safe Routes to School
Radar Speed Sign for Birch Hill Elementary School
40683
July 31, 2017
SPECIAL PROVISION
AMENDMENT TO SECTION 615 — TRAFFIC SIGNS
Item 615.025014— Variable Message Radar Speed Feedback Sign
Add 1.11 to read:
1.11 This work shall consist of furnishing and installing a variable message speed radar
feedback sign assemblies as shown on the plans or as directed by the Engineer.
Add 1.2.4 to read:
1.2.4 The radar speed sign consists of a MUTCD compliant sign (minimum 24” width), with
a variable message matrix LED display 12.5” high, capable of 1 graphic or 2 lines of text and
12” to 15” digit height speed LED display. A radar module shall be mounted within the
enclosure. Sign shall include aluminum tube mount, solar panel, two amber flashing beacons,
aluminum pole, and foundation.
Add 2.11 to read:
2.11 Variable Message Radar Speed Sign
2.11.1 The speed display shall be a 2 character, super bright amber LED type with
100,000 life hours.
2.11.2 The unit shall have automatic intensity adjustment to ambient li ght
conditions with power saving circuitry.
2.11.3 The display shall have numeric characters 12” to 15” in height. Display
shall be equipped with over speed detection alarm that flashes the displayed speed settable in 1
MPH increments. Display to blank at a maximum speed cutoff (which must be adjustable).
2.11.4 All components shall be contained in the display/housing.
2.11.5 The display/housing shall be vandal and tamper resistant.
2.11.6 Housing shall be aluminum with a gray powder coat finish, weatherproof,
NEMA 4x-12 level compliant, with IP65 sealed electronics compartment.
2.11.7 Operating temperature range from -40 degrees to 130 degrees Fahrenheit,
95% humidity.
