Horizon SQ3TS arrives on the bridge job site
in Wainfleet on September 3, 2002. Construction
workers from Hard Rock Paving prepare to position
the signals at each end of the bridge.


The units are placed behind jersey barriers, aimed
toward oncoming traffic and leveled. Since both units
are on the same side of the roadway the signal headsfor unit two were reversed to face oncoming traffic. Sensors and a four-foot extension arm were added to the repeater light to position this signal over the lane of traffic.

Mounting heights of the repeater lights were
checked by MTO personnel. Repeater lights
set at a height of five meters, primary
signal set at 2.75 meters; and the two heads
separated by a minimum of three meters.

Two signal heads per unit, mounted both overhead
and at the side of the roadway, offer bright 12-inch
LED lights that make this portable traffic control
signal very visible and effective.