Traffic Signal Components - General Costs:

Element Unit Prices * (Source: USDOT RITA ITS)
Mast arms (per assembly, excludes foundation) $6,000 to $9,000/each (up to 20k)
New controller Assembly $9,000/each
3-section, 12-inch LED signal head $800/each
5-section, 12-inch LED signal head $1,300/each
LED pedestrian signal head $600/each
LED replacement bulb $150
Pedestrian pushbutton $250/each
Loop detector $1,200 to $1,800/each
Video detector $4,000/approach, $16,000 intersection
Junction box $1,000/each
Emergency vehicle preemption (EVP) $3,000/approach, $10,000/intersection
Signs, misc. $35/square foot
Uninterruptible power supply (UPS), i.e., battery backup for LED signals $3,000 to $6,000/intersection
External generator panel (hook-up to accommodate a small generator) $500
Traffic Signal Retiming and Analysis
(recommended every 3 to 5 years for every traffic signal)
$1,000 to $8,000/intersection

Engineer's Estimate of Service Life for each Traffic Signal Component:

Component or Material Average Life (years)
Tubular Steel Mast Arms 25
Steel Pole and Span Wire 23
Loop Detector 9
Non-invasive Detector 10
Traffic Controller 14
Controller Cabinet 18
Twisted Copper Interconnect cable 18
Fiber optic Cable 24
Incandescent Lamps 1-2
LED Lamps 7
Signal Heads 19
Signs 11
Thermoplastic pavement markings 4

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