Specifications include, but are not limited to: Traffic Controller Assemblies. Traffic controller assemblies are
defined as the complete assembly of all required equipment and components
for control of traffic signal indications. Traffic controller assemblies shall
conform to the requirements of the latest revision of NEMA Standards
Publications No. TS 2, hereafter called NEMA. Each assembly shall consist
of a controller cabinet, controller unit, back panel, malfunction management
unit, all required wiring, switches and connectors and all other equipment as
defined in these specifications and as shown on the plans. Double controller
assemblies to control two intersections shall consist of a controller cabinet,
two controller units, two back panels, two malfunction management units all
required wiring, switches and connectors and all other equipment as defined in
these specifications and as shown on the plans.
Controller Units (CU). This section supplements NEMA in
describing the general specifications for actuated solid-state controller units.
If requested by the engineer, the contractor shall provide a prototype controller
for testing and evaluation.
a. CU Configuration.
(i) CU shall be NEMA Actuated Type 2 with the following
(ii) Cus shall be capable of operation of a minimum of 12
vehicle and pedestrian phases and 8 overlaps.
(iii) All phases and overlaps shall be activated or inactivated
by program entry.