IMSA Bench Tech II study plan
IMSA Bench Tech II · Give each week a clear focus.
8 weeks · About 7 hours per week
Traffic Signal & Signs and Markings
Map the four IMSA Bench Tech II domains onto a personal weakness list, ranking Traffic Signal and Signs and Markings first because each carries 25% weight.
Define signal phasing vocabulary (phase, interval, split, cycle length, offset, coordination) in your own words and self-quiz until you can define each from memory.
Sketch a four-leg intersection with left-turn lanes and label every signal head location, including supplementary near-side and far-side heads.
Identify the standard colors and shapes of regulatory, warning, and guide signs and state the meaning of each shape class without notes.
Build a spaced-repetition deck of at least 60 terms drawn from Domains 1 and 2.
Your checkpoint
A dated weakness tracker plus a 60-card deck covering signal phasing and sign-shape/color terminology.
Traffic Signal
Trace a complete signal circuit from controller output through conflict monitor, load switch, and field wiring to the signal head.
Explain the function of the MMU (conflict monitor) and list at least five fault conditions it detects, such as conflicting greens and red failure.
Describe the difference between pre-timed, actuated, and semi-actuated control and give one field scenario that suits each.
Read a simple intersection timing chart and calculate splits and cycle length from given green, yellow, and all-red values.
Practice safe bench procedures for testing a signal head: verify power isolation, confirm lamp/bulb type, and document readings.
Your checkpoint
A one-page signal circuit diagram with the controller, MMU, load switches, and field terminals annotated in your own hand.
Traffic Signal & Signs and Markings
Distinguish loop detectors, video detection, and radar detection by installation method, failure modes, and typical bench-test steps.
Explain pedestrian signal operation, including WALK, flashing DON'T WALK, and clearance interval timing relationships.
Identify the components of a signal head (housing, visor, backplate, lens, lamp or LED module, gasket) and state one inspection point for each.
Classify common pavement markings by function: longitudinal lines, transverse lines, symbols, and words, and state the color conventions for each.
Demonstrate how to verify LED signal module operation on the bench, including checking for dark segments and current draw.
Your checkpoint
A comparison table of three detection technologies with failure modes and bench-test steps, plus a marking color/shape reference sheet.
Signs and Markings
Explain the relationship between sign retroreflectivity, sheeting type, and nighttime legibility, and describe how to inspect for degradation.
Identify mounting height, lateral offset, and post-breakaway requirements for common roadside signs.
Describe proper sign installation steps: post setting, sign attachment, plumb/level check, and torque or fastener verification.
Differentiate warning sign placement distance logic from regulatory sign placement logic using approach speed reasoning.
List at least eight sign inspection defects, such as fading, peeling, graffiti, bent posts, and obscured legends.
Your checkpoint
A 20-item sign inspection checklist you can carry on a job walk, with pass/fail criteria for each item.
Roadway Lighting
Explain the purpose of roadway lighting: visibility for drivers, pedestrians, and workers, and reduction of night crash risk.
Compare luminaire types (HPS, LED, induction) by color rendering, warm-up behavior, efficacy, and maintenance profile.
Describe the anatomy of a lighting circuit: service point, photocell, contactor, breaker, ballast or driver, and luminaire.
Identify common roadway lighting standards concepts: luminance versus illuminance, uniformity ratio, and glare control.
Practice a safe lockout/tagout sequence for working on a lighting circuit and state the verification steps before touching conductors.
Your checkpoint
A labeled lighting circuit schematic plus a written lockout/tagout verification sequence.
Roadway Lighting & Work Zone Temporary Traffic Control
Diagnose common luminaire faults (no light, cycling, dim output, flicker) and map each symptom to likely causes and test steps.
Explain photocell and time-clock control settings and how to verify correct dusk-to-dawn operation.
Describe the four components of a work zone: advance warning area, transition area, activity area, and termination area.
Select the correct taper length and channelizing device spacing for a given speed and lane closure scenario using formula reasoning.
Identify the roles of flagger, spotter, and traffic control supervisor and state the key safety duty of each.
Your checkpoint
A fault-diagnosis flow chart for roadway luminaires and a hand-drawn work zone layout for a one-lane closure.
Work Zone Temporary Traffic Control
Explain how temporary traffic control devices differ from permanent devices in retroreflectivity, ballast, and portability requirements.
Describe proper placement and spacing of cones, drums, barricades, and arrow boards for a typical daytime lane closure.
State nighttime work zone requirements, including device retroreflectivity and lighting of the activity area.
Outline flagger signaling procedures and communication methods, including hand signals and radio protocol.
List at least six work zone inspection items, such as device condition, taper integrity, sign legibility, and worker PPE.
Your checkpoint
A work zone inspection form with at least 15 checkable items and a written nighttime setup adjustment list.
Traffic Signal & Signs and Markings & Roadway Lighting & Work Zone Temporary Traffic Control
Complete a timed 60-question mixed-domain practice set and score each domain separately to identify remaining gaps.
Re-teach your two weakest topics from memory in writing, then correct errors against your notes.
Review all prior deliverables and rewrite any that contain errors or unclear steps.
Rehearse a bench-style scenario for each domain: signal head test, sign install, luminaire diagnosis, and work zone setup.
Finalize a one-page quick-reference sheet covering key formulas, color conventions, and safety sequences.
Your checkpoint
A scored 60-question practice result with a corrected error log and a one-page final quick-reference sheet.
Milestones
Week 2: Can draw the signal control chain from controller to signal head and explain conflict monitor faults without notes.
Week 4: Can classify any sign by shape, color, and function and apply mounting and placement rules to a field scenario.
Week 6: Can diagnose four common luminaire faults and lay out a compliant one-lane work zone from memory.
Week 8: Scores at least 80% overall on the mixed practice set, with no single domain below 70%.