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Limited to timing/phasing modifications which are accomplished with
existing equipment
Replacement, upgrade, or addition of traffic signal equipment which
does not impact information shown on the traffic signal permit condition diagram
Modifications to items shown on the traffic signal permit condition
diagram, but does not include replacement or installation of traffic signal
supports
Modifications to the traffic signal which include replacement or
addition of traffic signal poles, but retain some existing traffic signal
equipment
Full modernization/replacement of all traffic signal equipment at an
existing signalized intersection
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